The molecular conformation of the title compound, C24H23NO5·C3H7NO, is consolidated by intramolecular C—H⋯O O—H⋯O hydrogen bonds, forming an S(6) ring motif. In the crystal, the molecules are connected by C—H⋯O hydrogen bonds, forming layers parallel to the (101) plane. Additionally, C—H⋯π interactions lead to the formation of layers parallel to the (102) plane.
Keywords: crystal structure, hydrogen bonds, envelope conformation, Hirshfeld surface analysis
Abstract
The molecular conformation of the title compound, C24H23NO5·C3H7NO, is consolidated by intramolecular C—H⋯O O—H⋯O hydrogen bonds, forming an S(6) ring motif. In the crystal, the molecules are connected by C—H⋯O hydrogen bonds, forming layers parallel to the (101) plane. Furthermore, the molecules form layers parallel to the (102) plane by C—H⋯π interactions. Important intermolecular interactions highlighted by Hirshfeld surface analysis are H⋯H (54.7%), O⋯H/H⋯O (23.0%), and C⋯H/H⋯C (19.9%) contacts.
1. Chemical context
The IMDAV reaction (Intra-Molecular Diels–Alder in Vinylheteroarenes) is a useful tool for the one-step synthesis of benzofurans, indoles, benzothiophenes, and pyrrolopyridines annulated with other carbocycles and heterocycles (Horak et al., 2017 ▸; Krishna et al., 2022 ▸; Nadirova et al., 2020 ▸; Shelukho et al., 2025 ▸; Yakovleva et al., 2024 ▸; Zaytsev et al., 2023 ▸, 2025 ▸; Zubkov et al., 2016 ▸). In a continuation of our research on the properties of vinylheteroarene systems previously obtained via tandem acylation/[4 + 2] cycloaddition between 3-(heteroaryl)allylamines and maleic anhydrides, an example of an IMDAV reaction, we present here the second instance of spontaneous slow oxidation of adduct 1 (Fig. 1 ▸) in DMSO under aerobic conditions. Previous studies have shown that benzothienoisoindolones of type 1 undergo oxidation when stored for a long time in DMSO at room temperature (Mammadova et al., 2023 ▸). Presumably, the DMSO acts as a mild oxidant, as observed in several other oxidation reactions, including the Pfitzner–Moffatt, Corey–Kim, Swern, and Kornblum oxidations (Epstein et al., 1967 ▸).
Figure 1.
Synthesis of (3aRS,4RS,10SR,10aSR)-2-(3,5-dimethylphenyl)-4-hydroxy-10-methyl-1-oxo-2,3,3a,4,10,10a-hexahydro-1H-[1]benzofuro[2,3-f]isoindole-10-carboxylic acid (2).
Slow oxidation of (3aRS,9bRS,10RS,10aSR)-2-(3,5-dimethylphenyl)-10-methyl-1-oxo-2,3,3a,9b,10,10a-hexahydro-1H-[1]benzofuro[2,3-f]isoindole-10-carboxylic acid (1) occurs when the solution is stirred in dimethyl sulfoxide (DMSO) for one month at r.t. The title compound 2 was isolated in a 53% yield after standard treatment of the reaction mixture followed by recrystallization from an EtOH/DMF mixture. As in the previous case (Mammadova et al., 2023 ▸), the reaction does not stop at the formation of an alcohol. This leads to the formation of the aromatic product 2 as a result of proton migration.
2. Structural commentary
The molecular conformation of the title compound is consolidated by intramolecular C—H⋯O hydrogen bonds and intramolecular O—H⋯O hydrogen bonds, forming an S(6) ring motif (Fig. 2 ▸; Table 1 ▸; Bernstein et al., 1995 ▸). The main molecule of the title compound is planar, with a mean deviation of 0.002 Å from the least-squares plane defined by the 53 atoms (excluding H atoms). The deviations of some atoms from the least-squares plane are 1.141 (2) Å for O1, −1.083 (2) Å for O2, −1.414 (2) Å for O3, −1.224 (2) Å for O4, 0.734 (2) Å for C1, 0.718 (2) Å for C10A, −0.631 (2) Å for C18, −0.841 (2) Å for C19 and 1.585 (2) Å for C20. The five-membered B (N2/C1/C10A/C3A/C3) ring adopts an envelope conformation, as indicated by the puckering parameters (Cremer & Pople, 1975 ▸) Q(2) = 0.337 (2) Å, φ(2) = 287.7 (4)°, with the C3A atom −0.212 (2) Å out of the plane defined by the other atoms of the main molecule. The six-membered C (C3A/C4/C4A/C9B/C10/C10A) ring has a half-chair conformation [the puckering parameters are QT = 0.533 (2) Å, θ = 127.0 (2)°, and φ = 152.1 (3)°]. The dihedral angles between the least-squares planes of the rings in the molecule are A/B = 19.28 (12), A/C = 6.72 (11), A/D = 2.10 (11), A/E = 19.19 (11), B/C = 12.57 (11), B/D = 20.45 (12), B/E = 35.55 (11), C/D = 8.10 (10), C/E = 24.24 (10) and D/E = 19.75 (10)°. There is one stereogenic center in the title molecule and the chirality about atom C23 is S in the chosen asymmetric unit. The geometric properties of the title compound are normal and consistent with those of related compounds listed in the Database survey section.
Figure 2.
View of the title molecule. Displacement ellipsoids are drawn at the 50% probability level.
Table 1. Hydrogen-bond geometry (Å, °).
Cg4 and Cg5 are the centroids of the C5A/C6–C9/C9A and C11–C16 rings, respectively.
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| O2—H2O⋯O1i | 0.99 (5) | 2.23 (4) | 3.013 (2) | 135 (3) |
| O2—H2O⋯O3i | 0.99 (5) | 2.32 (4) | 3.152 (3) | 141 (3) |
| O4—H4O⋯O6 | 0.84 (4) | 1.74 (4) | 2.560 (3) | 165 (4) |
| C3—H3A⋯O1ii | 0.99 | 2.54 | 3.452 (3) | 152 |
| C8—H8⋯O6iii | 0.95 | 2.44 | 3.344 (3) | 159 |
| C16—H16⋯O1 | 0.95 | 2.44 | 2.970 (3) | 115 |
| C20—H20B⋯O1 | 0.98 | 2.59 | 3.229 (3) | 123 |
| C10A—H10A⋯Cg5ii | 1.00 | 2.88 | 3.865 (2) | 169 |
| C22—H22A⋯Cg5iv | 0.98 | 2.96 | 3.401 (3) | 109 |
| C22—H22C⋯Cg4v | 0.98 | 2.68 | 3.594 (3) | 155 |
Symmetry codes: (i)
; (ii)
; (iii)
; (iv)
; (v)
.
3. Supramolecular features and Hirshfeld surface analysis
In the crystal, the molecules are connected by C—H⋯O hydrogen bonds, forming layers parallel to the (101) plane (Table 1 ▸; Fig. 3 ▸). Furthermore, the molecules form layers parallel to the (10
) plane by C—H⋯π interactions (Table 1 ▸; Fig. 4 ▸. No π–π interactions were observed.
Figure 3.
A partial view of the molecular packing along the b axis, showing the O—H⋯O and C—H⋯O interactions.
Figure 4.
A partial view of the molecular packing along the b axis, showing the C—H⋯π interactions.
CrystalExplorer 17.5 (Spackman et al., 2021 ▸) was used to construct Hirshfeld surfaces and generate the related two-dimensional fingerprint plots to illustrate the intermolecular interactions for the molecules of the title compound. The dnorm mappings of the title compound were conducted in the range −0.7845 to +1.3229 a.u. Bright-red circles on the dnorm surfaces (Fig. 5 ▸) represent H⋯H, O—H⋯O and C—H⋯O interaction zones (Tables 1 ▸ and 2 ▸).
Figure 5.
Hirshfeld surface of the title compound mapped with dnorm.
Table 2. Summary of short interatomic contacts (Å).
| Contact | Distance | Symmetry operation |
|---|---|---|
| O1⋯H2O | 2.23 | x, 1 + y, z |
| O1⋯H3A | 2.54 | 2 − x, + y, 1 − z
|
| O4⋯H23A | 2.60 | x, −1 + y, z |
| H2O⋯H23B | 2.55 | 1 − x, − + y, 1 − z
|
| H4O⋯O6 | 1.74 | x, y, z |
| H16⋯H23B | 2.58 | 1 − x, − + y, 1 − z
|
| C7⋯H18B | 3.04 | x, −1 + y, 1 + z |
| H8⋯O6 | 2.44 | 1 − x, − + y, 2 − z
|
| H7⋯H22B | 2.52 | 1 − x, − + y, 2 − z
|
Two-dimensional fingerprint plots together with their percentage contributions are shown in Fig. 6 ▸. The crystal packing is dominated by H⋯H contacts, representing van der Waals interactions (54.7% contribution to the overall surface), followed by O⋯H/H⋯O and C⋯H/H⋯C interactions, which contribute to 23.0% and 19.9%, respectively. The other contacts (N⋯H/H⋯N 0.7%, O⋯C/C⋯O 0.6%, C⋯C 0.4%, O⋯O 0.3%, N⋯C/C⋯N 0.2%, O⋯N/N⋯O 0.1% and N⋯N 0.1%) only make a minor contribution to the crystal packing.
Figure 6.
The two-dimensional fingerprint plots for the compound showing (a) all interactions, and delineated into (b) H⋯H (54.7%), (c) O⋯H/H⋯O (23.0%) and (d) C⋯H/H⋯C (19.9%) interactions. The di and de values are the closest internal and external distances (in Å) from given points on the Hirshfeld surface.
4. Database survey
A search of the Cambridge Structural Database (CSD, version 6.00, update April 2025; Groom et al., 2016 ▸) for the octahydro-1H-isoindol-1-one unit gave 467 hits. The five related compound CSD reference codes are ANAMUZ (Mariaule et al., 2016 ▸), BAFYAL (Zhong et al., 2017 ▸), NAMROK (Chou & Wu, 2012 ▸), TODKEF (Elliott & Booker-Milburn, 2019 ▸) and YOPXIL (Paddon-Row et al., 2009 ▸).
ANAMUZ crystallizes in the monoclinic P21/c space group, BAFYAL in the orthorhombic Pna21 space group, NAMROK in the monoclinic P21/n space group, TODKEF in the monoclinic C2/c space group, and YOPXIL in the monoclinic P21 like the title compound.
In the structure of ANAMUZ, the molecules are linked by C—H⋯O and O—H⋯O intermolecular hydrogen bonds, forming a three-dimensional network. Weak π–π interactions are also observed. In BAFYAL, the molecules are linked by C—H⋯O interactions, forming layers parallel to the (002) plane. π–π interactions are also present. In NAMROK, pairs of molecules are linked by C—H⋯O interactions. π–π and C—H⋯π interactions are not observed. In TODKEF, the molecules are linked by intermolecular C—H⋯O and O—H⋯O hydrogen bonds, forming a three-dimensional network. C—H⋯π interactions are also observed. In YOPXIL, the molecules are linked by intermolecular C—H⋯O hydrogen bonds, forming chains along the b-axis direction. No π–π or C—H⋯π interactions are observed.
5. Synthesis and crystallization
A solution of (3aRS,9bRS,10RS,10aSR)-2-(3,5-dimethylphenyl)-10-methyl-1-oxo-2,3,3a,9b,10,10a-hexahydro-1H-[1]benzofuro[2,3-f]isoindole-10-carboxylic acid 1 (39.0 mg, 0.1 mmol) in 0.5 mL of DMSO was stirred for 30 d in an open flask. The reaction mixture was concentrated, recrystallized from a mixture of EtOH/DMF. The solid was filtered off, washed with Et2O (3 × 1 mL), and air dried. The title compound was obtained as a colorless plates, yield 53%, 21.5 mg; m.p. > 523 K (with decomp.). IR (KBr), ν (cm−1): 3047 (OH), 1744 (CO2), 1683 (N—C=O). 1H NMR (700.2 MHz, DMSO-d6): δ (J, Hz) 12.87 (s, 1H, CO2H), 7.30–7.22 (m, 4H, H Ar), 7.09–7.06 (m, 2H, H Ar), 6.76 (br.s, 1H, H Ar), 5.69 (br.s, 1H, OH), 4.31 (br.s, 1H, H-4) 4.02 (t, J = 8.6, 1H, H-3A), 3.69 (t, J = 8.6, 1H, H-3B), 3.03–2.98 (m, 1H, H-3a), 2.26 (s, 6H, CH3), 2.14 (d, J = 12.6, 1H, H-10a), 0.99 (s, 3H, CH3) ppm. 13C{1H} NMR (176.1 MHz, DMSO-d6): δ 177.3, 172.6, 158.8, 156.9, 140.2, 138.2 (2C), 129.4, 126.4, 125.8, 125.4, 122.8, 117.6 (2C), 110.6, 98.8, 58.9, 50.3, 49.7, 42.9, 35.9, 22.8, 21.7 (2C) ppm. MS (ESI) m/z: [M + H]+ 406. Elemental analysis calculated (%) for C24H23NO5·C3H7NO: C 67.77, H 6.32, N 5.85; found: C 68.04, H 6.49, N 6.01.
6. Refinement
Crystal data, data collection and structure refinement details are summarized in Table 3 ▸. The hydroxyl H atoms were found in the difference Fourier maps [O2—H2O = 0.99 (5) and O4—H4O = 0.84 (4) Å] and refined with Uiso(H) = 1.5Ueq(O). All C-bound H atoms were positioned geometrically (C—H = 0.95 and 1.00 Å) and refined using a riding model with Uiso(H) = 1.2 or 1.5Ueq(C). Owing to poor agreement between observed and calculated intensities, two outliers (\-13 \-5 3 and 14 3 2) were omitted in the final cycles of refinement.
Table 3. Experimental details.
| Crystal data | |
| Chemical formula | C24H23NO5·C3H7NO |
| M r | 478.53 |
| Crystal system, space group | Monoclinic, P21 |
| Temperature (K) | 100 |
| a, b, c (Å) | 11.88334 (13), 7.80196 (10), 12.71675 (15) |
| β (°) | 95.5166 (10) |
| V (Å3) | 1173.55 (2) |
| Z | 2 |
| Radiation type | Cu Kα |
| μ (mm−1) | 0.79 |
| Crystal size (mm) | 0.32 × 0.18 × 0.04 |
| Data collection | |
| Diffractometer | Rigaku XtaLAB Synergy-S, HyPix-6000HE area-detector |
| Absorption correction | Multi-scan (CrysAlis PRO; Rigaku OD, 2021 ▸) |
| Tmin, Tmax | 0.840, 1.000 |
| No. of measured, independent and observed [I > 2σ(I)] reflections | 16579, 4632, 4504 |
| R int | 0.039 |
| (sin θ/λ)max (Å−1) | 0.639 |
| Refinement | |
| R[F2 > 2σ(F2)], wR(F2), S | 0.039, 0.104, 1.05 |
| No. of reflections | 4632 |
| No. of parameters | 327 |
| No. of restraints | 1 |
| H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
| Δρmax, Δρmin (e Å−3) | 0.29, −0.20 |
| Absolute structure | Flack x determined using 1816 quotients [(I+)−(I−)]/[(I+)+(I−)] (Parsons et al., 2013 ▸) |
| Absolute structure parameter | 0.26 (7) |
Supplementary Material
Crystal structure: contains datablock(s) I. DOI: 10.1107/S2056989025006814/ex2094sup1.cif
Structure factors: contains datablock(s) I. DOI: 10.1107/S2056989025006814/ex2094Isup2.hkl
Supporting information file. DOI: 10.1107/S2056989025006814/ex2094Isup3.cml
CCDC reference: 2477243
Additional supporting information: crystallographic information; 3D view; checkCIF report
Acknowledgments
The authors’ contributions are as follows. Conceptualization, MA and GMM; synthesis and NMR analysis, EDY and VIS; X-ray analysis, VNK; writing (review and editing of the manuscript) RZN, MA and GMM; funding acquisition KIH and TAJ; supervision, MA and GMM.
supplementary crystallographic information
(3aRS,4RS,10SR,10aSR)-2-(3,5-Dimethylphenyl)-4-hydroxy-10-methyl-1-oxo-2,3,3a,4,10,10a-hexahydro-1H-[1]benzofuro[2,3-f]isoindole-10-carboxylic acid dimethylformamide monosolvate . Crystal data
| C24H23NO5·C3H7NO | F(000) = 508 |
| Mr = 478.53 | Dx = 1.354 Mg m−3 |
| Monoclinic, P21 | Cu Kα radiation, λ = 1.54184 Å |
| a = 11.88334 (13) Å | Cell parameters from 11292 reflections |
| b = 7.80196 (10) Å | θ = 3.5–79.3° |
| c = 12.71675 (15) Å | µ = 0.79 mm−1 |
| β = 95.5166 (10)° | T = 100 K |
| V = 1173.55 (2) Å3 | Plate, colourless |
| Z = 2 | 0.32 × 0.18 × 0.04 mm |
(3aRS,4RS,10SR,10aSR)-2-(3,5-Dimethylphenyl)-4-hydroxy-10-methyl-1-oxo-2,3,3a,4,10,10a-hexahydro-1H-[1]benzofuro[2,3-f]isoindole-10-carboxylic acid dimethylformamide monosolvate . Data collection
| Rigaku XtaLAB Synergy-S, HyPix-6000HE area-detector diffractometer | 4504 reflections with I > 2σ(I) |
| Radiation source: micro-focus sealed X-ray tube | Rint = 0.039 |
| φ and ω scans | θmax = 80.0°, θmin = 3.5° |
| Absorption correction: multi-scan (CrysAlisPro; Rigaku OD, 2021) | h = −15→14 |
| Tmin = 0.840, Tmax = 1.000 | k = −9→9 |
| 16579 measured reflections | l = −16→16 |
| 4632 independent reflections |
(3aRS,4RS,10SR,10aSR)-2-(3,5-Dimethylphenyl)-4-hydroxy-10-methyl-1-oxo-2,3,3a,4,10,10a-hexahydro-1H-[1]benzofuro[2,3-f]isoindole-10-carboxylic acid dimethylformamide monosolvate . Refinement
| Refinement on F2 | Hydrogen site location: mixed |
| Least-squares matrix: full | H atoms treated by a mixture of independent and constrained refinement |
| R[F2 > 2σ(F2)] = 0.039 | w = 1/[σ2(Fo2) + (0.0664P)2 + 0.2084P] where P = (Fo2 + 2Fc2)/3 |
| wR(F2) = 0.104 | (Δ/σ)max < 0.001 |
| S = 1.05 | Δρmax = 0.29 e Å−3 |
| 4632 reflections | Δρmin = −0.20 e Å−3 |
| 327 parameters | Absolute structure: Flack x determined using 1816 quotients [(I+)-(I-)]/[(I+)+(I-)] (Parsons et al., 2013) |
| 1 restraint | Absolute structure parameter: 0.26 (7) |
(3aRS,4RS,10SR,10aSR)-2-(3,5-Dimethylphenyl)-4-hydroxy-10-methyl-1-oxo-2,3,3a,4,10,10a-hexahydro-1H-[1]benzofuro[2,3-f]isoindole-10-carboxylic acid dimethylformamide monosolvate . Special details
| Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. |
(3aRS,4RS,10SR,10aSR)-2-(3,5-Dimethylphenyl)-4-hydroxy-10-methyl-1-oxo-2,3,3a,4,10,10a-hexahydro-1H-[1]benzofuro[2,3-f]isoindole-10-carboxylic acid dimethylformamide monosolvate . Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2)
| x | y | z | Uiso*/Ueq | ||
| O1 | 0.88530 (14) | 0.6262 (2) | 0.57739 (13) | 0.0271 (3) | |
| O2 | 0.71225 (14) | −0.0932 (2) | 0.53774 (13) | 0.0284 (3) | |
| H2O | 0.730 (3) | −0.211 (6) | 0.563 (3) | 0.043* | |
| O3 | 0.64231 (13) | 0.5337 (3) | 0.60067 (13) | 0.0305 (4) | |
| O4 | 0.59786 (13) | 0.4918 (2) | 0.76539 (13) | 0.0273 (3) | |
| H4O | 0.548 (3) | 0.562 (6) | 0.741 (3) | 0.041* | |
| C1 | 0.86110 (16) | 0.4789 (3) | 0.55174 (17) | 0.0224 (4) | |
| N2 | 0.85953 (15) | 0.4116 (3) | 0.45216 (14) | 0.0226 (4) | |
| C3 | 0.83569 (18) | 0.2262 (3) | 0.44817 (17) | 0.0238 (4) | |
| H3A | 0.906192 | 0.158378 | 0.448925 | 0.029* | |
| H3B | 0.784816 | 0.195658 | 0.384677 | 0.029* | |
| C3A | 0.77808 (17) | 0.1988 (3) | 0.54918 (17) | 0.0227 (4) | |
| H3C | 0.696408 | 0.229798 | 0.534790 | 0.027* | |
| C4 | 0.78611 (17) | 0.0212 (3) | 0.59804 (17) | 0.0224 (4) | |
| H4 | 0.865679 | −0.021613 | 0.601253 | 0.027* | |
| C4A | 0.75155 (16) | 0.0443 (3) | 0.70768 (16) | 0.0222 (4) | |
| O5 | 0.72355 (13) | −0.0995 (2) | 0.76165 (13) | 0.0249 (3) | |
| C5A | 0.69017 (17) | −0.0398 (3) | 0.85613 (17) | 0.0235 (4) | |
| C6 | 0.65086 (19) | −0.1429 (3) | 0.93339 (19) | 0.0274 (5) | |
| H6 | 0.646651 | −0.264079 | 0.926576 | 0.033* | |
| C7 | 0.6179 (2) | −0.0579 (3) | 1.02159 (19) | 0.0290 (5) | |
| H7 | 0.590681 | −0.122544 | 1.077164 | 0.035* | |
| C8 | 0.6241 (2) | 0.1209 (4) | 1.03023 (19) | 0.0293 (5) | |
| H8 | 0.600598 | 0.174756 | 1.091446 | 0.035* | |
| C9 | 0.66374 (19) | 0.2215 (3) | 0.95132 (18) | 0.0266 (4) | |
| H9 | 0.667526 | 0.342649 | 0.957983 | 0.032* | |
| C9A | 0.69807 (17) | 0.1389 (3) | 0.86142 (17) | 0.0227 (4) | |
| C9B | 0.73912 (17) | 0.1912 (3) | 0.76232 (16) | 0.0215 (4) | |
| C10 | 0.76988 (17) | 0.3675 (3) | 0.72104 (17) | 0.0217 (4) | |
| C10A | 0.83541 (16) | 0.3314 (3) | 0.62441 (17) | 0.0221 (4) | |
| H10A | 0.909918 | 0.281612 | 0.652289 | 0.027* | |
| C11 | 0.88384 (16) | 0.5005 (3) | 0.35935 (16) | 0.0225 (4) | |
| C12 | 0.92752 (18) | 0.4062 (3) | 0.27861 (18) | 0.0246 (4) | |
| H12 | 0.946899 | 0.289074 | 0.289792 | 0.029* | |
| C13 | 0.94276 (17) | 0.4833 (3) | 0.18188 (17) | 0.0247 (4) | |
| C14 | 0.91430 (18) | 0.6547 (3) | 0.16710 (18) | 0.0254 (4) | |
| H14 | 0.922624 | 0.706973 | 0.100812 | 0.030* | |
| C15 | 0.87377 (18) | 0.7520 (3) | 0.24734 (18) | 0.0248 (4) | |
| C16 | 0.85946 (17) | 0.6739 (3) | 0.34459 (17) | 0.0231 (4) | |
| H16 | 0.833172 | 0.739347 | 0.400308 | 0.028* | |
| C17 | 0.9891 (2) | 0.3806 (3) | 0.09481 (19) | 0.0310 (5) | |
| H17A | 1.067808 | 0.349135 | 0.116298 | 0.047* | |
| H17B | 0.985651 | 0.449642 | 0.030209 | 0.047* | |
| H17C | 0.943878 | 0.276417 | 0.081523 | 0.047* | |
| C18 | 0.8463 (2) | 0.9381 (3) | 0.2310 (2) | 0.0306 (5) | |
| H18A | 0.772745 | 0.962733 | 0.256594 | 0.046* | |
| H18B | 0.843368 | 0.965518 | 0.155612 | 0.046* | |
| H18C | 0.904707 | 1.007900 | 0.270236 | 0.046* | |
| C19 | 0.66366 (17) | 0.4730 (3) | 0.68735 (17) | 0.0235 (4) | |
| C20 | 0.84293 (18) | 0.4711 (3) | 0.80565 (18) | 0.0261 (4) | |
| H20A | 0.800078 | 0.490770 | 0.866655 | 0.039* | |
| H20B | 0.863104 | 0.581564 | 0.775894 | 0.039* | |
| H20C | 0.911934 | 0.406868 | 0.828098 | 0.039* | |
| O6 | 0.43899 (15) | 0.7105 (3) | 0.72511 (14) | 0.0318 (4) | |
| N1 | 0.43032 (15) | 0.9966 (3) | 0.69699 (16) | 0.0285 (4) | |
| C21 | 0.45729 (18) | 0.8385 (3) | 0.67122 (18) | 0.0273 (5) | |
| H21 | 0.492584 | 0.821996 | 0.608054 | 0.033* | |
| C22 | 0.3827 (2) | 1.0261 (4) | 0.7974 (2) | 0.0337 (5) | |
| H22A | 0.325742 | 0.938282 | 0.807445 | 0.051* | |
| H22B | 0.347375 | 1.139676 | 0.796540 | 0.051* | |
| H22C | 0.443070 | 1.020126 | 0.855480 | 0.051* | |
| C23 | 0.4538 (2) | 1.1426 (4) | 0.6328 (2) | 0.0374 (6) | |
| H23A | 0.504688 | 1.221382 | 0.674296 | 0.056* | |
| H23B | 0.382962 | 1.201749 | 0.609764 | 0.056* | |
| H23C | 0.489733 | 1.103704 | 0.570820 | 0.056* |
(3aRS,4RS,10SR,10aSR)-2-(3,5-Dimethylphenyl)-4-hydroxy-10-methyl-1-oxo-2,3,3a,4,10,10a-hexahydro-1H-[1]benzofuro[2,3-f]isoindole-10-carboxylic acid dimethylformamide monosolvate . Atomic displacement parameters (Å2)
| U11 | U22 | U33 | U12 | U13 | U23 | |
| O1 | 0.0306 (7) | 0.0246 (8) | 0.0275 (8) | −0.0040 (6) | 0.0093 (6) | −0.0023 (6) |
| O2 | 0.0342 (8) | 0.0240 (8) | 0.0278 (7) | −0.0030 (7) | 0.0073 (6) | −0.0033 (7) |
| O3 | 0.0278 (7) | 0.0373 (9) | 0.0275 (8) | 0.0075 (7) | 0.0080 (6) | 0.0036 (7) |
| O4 | 0.0257 (7) | 0.0295 (8) | 0.0284 (8) | 0.0054 (6) | 0.0117 (6) | 0.0017 (7) |
| C1 | 0.0180 (8) | 0.0254 (10) | 0.0247 (9) | −0.0014 (7) | 0.0067 (7) | −0.0023 (8) |
| N2 | 0.0234 (8) | 0.0222 (9) | 0.0235 (8) | −0.0025 (7) | 0.0089 (6) | −0.0006 (7) |
| C3 | 0.0259 (10) | 0.0221 (11) | 0.0247 (9) | −0.0005 (8) | 0.0090 (7) | −0.0014 (8) |
| C3A | 0.0207 (9) | 0.0244 (10) | 0.0240 (9) | 0.0004 (8) | 0.0072 (7) | −0.0010 (8) |
| C4 | 0.0207 (8) | 0.0225 (10) | 0.0250 (9) | 0.0007 (8) | 0.0079 (7) | −0.0012 (8) |
| C4A | 0.0196 (8) | 0.0231 (10) | 0.0248 (10) | 0.0009 (8) | 0.0060 (7) | 0.0020 (8) |
| O5 | 0.0270 (7) | 0.0233 (8) | 0.0259 (7) | 0.0006 (6) | 0.0093 (5) | 0.0000 (6) |
| C5A | 0.0213 (9) | 0.0273 (11) | 0.0228 (10) | 0.0018 (8) | 0.0064 (7) | −0.0008 (8) |
| C6 | 0.0269 (10) | 0.0260 (11) | 0.0301 (11) | 0.0006 (8) | 0.0073 (8) | 0.0014 (9) |
| C7 | 0.0309 (11) | 0.0319 (13) | 0.0253 (10) | 0.0015 (9) | 0.0086 (8) | 0.0053 (9) |
| C8 | 0.0316 (10) | 0.0338 (13) | 0.0240 (10) | 0.0025 (9) | 0.0106 (8) | 0.0008 (9) |
| C9 | 0.0296 (10) | 0.0263 (11) | 0.0250 (10) | 0.0023 (9) | 0.0090 (8) | −0.0006 (9) |
| C9A | 0.0195 (8) | 0.0259 (11) | 0.0234 (10) | 0.0020 (8) | 0.0059 (7) | 0.0011 (8) |
| C9B | 0.0199 (8) | 0.0234 (10) | 0.0219 (9) | 0.0018 (7) | 0.0052 (7) | −0.0005 (8) |
| C10 | 0.0214 (9) | 0.0222 (10) | 0.0227 (9) | 0.0004 (7) | 0.0080 (7) | −0.0001 (8) |
| C10A | 0.0189 (8) | 0.0238 (10) | 0.0244 (9) | 0.0000 (8) | 0.0061 (7) | −0.0014 (8) |
| C11 | 0.0192 (8) | 0.0279 (11) | 0.0212 (9) | −0.0020 (8) | 0.0060 (7) | −0.0001 (8) |
| C12 | 0.0233 (9) | 0.0242 (11) | 0.0271 (10) | 0.0010 (8) | 0.0076 (7) | −0.0008 (9) |
| C13 | 0.0219 (9) | 0.0285 (11) | 0.0245 (10) | −0.0013 (8) | 0.0070 (7) | −0.0004 (9) |
| C14 | 0.0237 (9) | 0.0286 (12) | 0.0246 (10) | −0.0031 (8) | 0.0065 (7) | 0.0003 (8) |
| C15 | 0.0229 (9) | 0.0243 (11) | 0.0275 (10) | −0.0026 (8) | 0.0043 (7) | −0.0004 (9) |
| C16 | 0.0207 (9) | 0.0248 (11) | 0.0247 (9) | −0.0013 (7) | 0.0073 (7) | −0.0021 (8) |
| C17 | 0.0372 (12) | 0.0322 (13) | 0.0253 (10) | 0.0051 (10) | 0.0119 (8) | 0.0004 (9) |
| C18 | 0.0354 (11) | 0.0266 (12) | 0.0307 (11) | 0.0019 (9) | 0.0079 (8) | 0.0002 (9) |
| C19 | 0.0220 (9) | 0.0227 (10) | 0.0267 (10) | −0.0020 (8) | 0.0073 (7) | −0.0020 (8) |
| C20 | 0.0267 (10) | 0.0274 (11) | 0.0250 (10) | −0.0017 (8) | 0.0059 (7) | −0.0023 (9) |
| O6 | 0.0307 (8) | 0.0297 (9) | 0.0369 (8) | 0.0032 (7) | 0.0135 (6) | 0.0011 (7) |
| N1 | 0.0236 (8) | 0.0310 (11) | 0.0305 (9) | 0.0014 (8) | 0.0015 (7) | −0.0003 (8) |
| C21 | 0.0250 (10) | 0.0289 (12) | 0.0287 (10) | 0.0006 (9) | 0.0059 (8) | −0.0017 (9) |
| C22 | 0.0318 (11) | 0.0363 (14) | 0.0328 (11) | 0.0102 (10) | 0.0023 (8) | −0.0057 (10) |
| C23 | 0.0305 (11) | 0.0341 (13) | 0.0463 (14) | −0.0025 (10) | −0.0030 (10) | 0.0077 (11) |
(3aRS,4RS,10SR,10aSR)-2-(3,5-Dimethylphenyl)-4-hydroxy-10-methyl-1-oxo-2,3,3a,4,10,10a-hexahydro-1H-[1]benzofuro[2,3-f]isoindole-10-carboxylic acid dimethylformamide monosolvate . Geometric parameters (Å, º)
| O1—C1 | 1.221 (3) | C10—C10A | 1.543 (3) |
| O2—C4 | 1.423 (3) | C10—C20 | 1.545 (3) |
| O2—H2O | 0.99 (4) | C10A—H10A | 1.0000 |
| O3—C19 | 1.204 (3) | C11—C16 | 1.393 (3) |
| O4—C19 | 1.329 (3) | C11—C12 | 1.402 (3) |
| O4—H4O | 0.85 (4) | C12—C13 | 1.397 (3) |
| C1—N2 | 1.369 (3) | C12—H12 | 0.9500 |
| C1—C10A | 1.525 (3) | C13—C14 | 1.388 (4) |
| N2—C11 | 1.422 (3) | C13—C17 | 1.513 (3) |
| N2—C3 | 1.475 (3) | C14—C15 | 1.394 (3) |
| C3—C3A | 1.528 (3) | C14—H14 | 0.9500 |
| C3—H3A | 0.9900 | C15—C16 | 1.404 (3) |
| C3—H3B | 0.9900 | C15—C18 | 1.498 (3) |
| C3A—C4 | 1.517 (3) | C16—H16 | 0.9500 |
| C3A—C10A | 1.525 (3) | C17—H17A | 0.9800 |
| C3A—H3C | 1.0000 | C17—H17B | 0.9800 |
| C4—C4A | 1.502 (3) | C17—H17C | 0.9800 |
| C4—H4 | 1.0000 | C18—H18A | 0.9800 |
| C4A—C9B | 1.356 (3) | C18—H18B | 0.9800 |
| C4A—O5 | 1.373 (3) | C18—H18C | 0.9800 |
| O5—C5A | 1.382 (3) | C20—H20A | 0.9800 |
| C5A—C6 | 1.385 (3) | C20—H20B | 0.9800 |
| C5A—C9A | 1.398 (3) | C20—H20C | 0.9800 |
| C6—C7 | 1.391 (3) | O6—C21 | 1.242 (3) |
| C6—H6 | 0.9500 | N1—C21 | 1.324 (3) |
| C7—C8 | 1.401 (4) | N1—C23 | 1.444 (4) |
| C7—H7 | 0.9500 | N1—C22 | 1.464 (3) |
| C8—C9 | 1.391 (3) | C21—H21 | 0.9500 |
| C8—H8 | 0.9500 | C22—H22A | 0.9800 |
| C9—C9A | 1.407 (3) | C22—H22B | 0.9800 |
| C9—H9 | 0.9500 | C22—H22C | 0.9800 |
| C9A—C9B | 1.453 (3) | C23—H23A | 0.9800 |
| C9B—C10 | 1.529 (3) | C23—H23B | 0.9800 |
| C10—C19 | 1.533 (3) | C23—H23C | 0.9800 |
| C4—O2—H2O | 108 (2) | C3A—C10A—H10A | 106.6 |
| C19—O4—H4O | 104 (3) | C1—C10A—H10A | 106.6 |
| O1—C1—N2 | 126.1 (2) | C10—C10A—H10A | 106.6 |
| O1—C1—C10A | 127.2 (2) | C16—C11—C12 | 119.8 (2) |
| N2—C1—C10A | 106.56 (19) | C16—C11—N2 | 121.94 (19) |
| C1—N2—C11 | 126.5 (2) | C12—C11—N2 | 118.1 (2) |
| C1—N2—C3 | 113.19 (18) | C13—C12—C11 | 120.5 (2) |
| C11—N2—C3 | 120.22 (18) | C13—C12—H12 | 119.7 |
| N2—C3—C3A | 102.03 (17) | C11—C12—H12 | 119.7 |
| N2—C3—H3A | 111.4 | C14—C13—C12 | 118.9 (2) |
| C3A—C3—H3A | 111.4 | C14—C13—C17 | 120.8 (2) |
| N2—C3—H3B | 111.4 | C12—C13—C17 | 120.2 (2) |
| C3A—C3—H3B | 111.4 | C13—C14—C15 | 121.5 (2) |
| H3A—C3—H3B | 109.2 | C13—C14—H14 | 119.3 |
| C4—C3A—C10A | 110.85 (18) | C15—C14—H14 | 119.3 |
| C4—C3A—C3 | 117.16 (18) | C14—C15—C16 | 119.2 (2) |
| C10A—C3A—C3 | 102.90 (17) | C14—C15—C18 | 120.8 (2) |
| C4—C3A—H3C | 108.5 | C16—C15—C18 | 119.9 (2) |
| C10A—C3A—H3C | 108.5 | C11—C16—C15 | 119.9 (2) |
| C3—C3A—H3C | 108.5 | C11—C16—H16 | 120.0 |
| O2—C4—C4A | 111.45 (17) | C15—C16—H16 | 120.0 |
| O2—C4—C3A | 109.92 (17) | C13—C17—H17A | 109.5 |
| C4A—C4—C3A | 105.01 (18) | C13—C17—H17B | 109.5 |
| O2—C4—H4 | 110.1 | H17A—C17—H17B | 109.5 |
| C4A—C4—H4 | 110.1 | C13—C17—H17C | 109.5 |
| C3A—C4—H4 | 110.1 | H17A—C17—H17C | 109.5 |
| C9B—C4A—O5 | 113.02 (18) | H17B—C17—H17C | 109.5 |
| C9B—C4A—C4 | 129.1 (2) | C15—C18—H18A | 109.5 |
| O5—C4A—C4 | 117.87 (19) | C15—C18—H18B | 109.5 |
| C4A—O5—C5A | 105.24 (17) | H18A—C18—H18B | 109.5 |
| O5—C5A—C6 | 124.4 (2) | C15—C18—H18C | 109.5 |
| O5—C5A—C9A | 110.75 (19) | H18A—C18—H18C | 109.5 |
| C6—C5A—C9A | 124.8 (2) | H18B—C18—H18C | 109.5 |
| C5A—C6—C7 | 115.8 (2) | O3—C19—O4 | 123.6 (2) |
| C5A—C6—H6 | 122.1 | O3—C19—C10 | 124.22 (19) |
| C7—C6—H6 | 122.1 | O4—C19—C10 | 112.22 (18) |
| C6—C7—C8 | 121.4 (2) | C10—C20—H20A | 109.5 |
| C6—C7—H7 | 119.3 | C10—C20—H20B | 109.5 |
| C8—C7—H7 | 119.3 | H20A—C20—H20B | 109.5 |
| C9—C8—C7 | 121.6 (2) | C10—C20—H20C | 109.5 |
| C9—C8—H8 | 119.2 | H20A—C20—H20C | 109.5 |
| C7—C8—H8 | 119.2 | H20B—C20—H20C | 109.5 |
| C8—C9—C9A | 118.2 (2) | C21—N1—C23 | 122.0 (2) |
| C8—C9—H9 | 120.9 | C21—N1—C22 | 119.1 (2) |
| C9A—C9—H9 | 120.9 | C23—N1—C22 | 118.7 (2) |
| C5A—C9A—C9 | 118.2 (2) | O6—C21—N1 | 123.6 (2) |
| C5A—C9A—C9B | 105.37 (19) | O6—C21—H21 | 118.2 |
| C9—C9A—C9B | 136.4 (2) | N1—C21—H21 | 118.2 |
| C4A—C9B—C9A | 105.6 (2) | N1—C22—H22A | 109.5 |
| C4A—C9B—C10 | 122.89 (18) | N1—C22—H22B | 109.5 |
| C9A—C9B—C10 | 131.4 (2) | H22A—C22—H22B | 109.5 |
| C9B—C10—C19 | 111.18 (16) | N1—C22—H22C | 109.5 |
| C9B—C10—C10A | 105.37 (18) | H22A—C22—H22C | 109.5 |
| C19—C10—C10A | 109.91 (17) | H22B—C22—H22C | 109.5 |
| C9B—C10—C20 | 111.64 (18) | N1—C23—H23A | 109.5 |
| C19—C10—C20 | 107.81 (18) | N1—C23—H23B | 109.5 |
| C10A—C10—C20 | 110.95 (17) | H23A—C23—H23B | 109.5 |
| C3A—C10A—C1 | 103.62 (17) | N1—C23—H23C | 109.5 |
| C3A—C10A—C10 | 113.22 (17) | H23A—C23—H23C | 109.5 |
| C1—C10A—C10 | 119.38 (19) | H23B—C23—H23C | 109.5 |
| O1—C1—N2—C11 | −1.1 (3) | C9A—C9B—C10—C10A | 166.1 (2) |
| C10A—C1—N2—C11 | −177.07 (19) | C4A—C9B—C10—C20 | −131.6 (2) |
| O1—C1—N2—C3 | 175.4 (2) | C9A—C9B—C10—C20 | 45.5 (3) |
| C10A—C1—N2—C3 | −0.6 (2) | C4—C3A—C10A—C1 | 158.47 (16) |
| C1—N2—C3—C3A | 21.1 (2) | C3—C3A—C10A—C1 | 32.4 (2) |
| C11—N2—C3—C3A | −162.14 (17) | C4—C3A—C10A—C10 | −70.7 (2) |
| N2—C3—C3A—C4 | −154.02 (18) | C3—C3A—C10A—C10 | 163.22 (18) |
| N2—C3—C3A—C10A | −32.2 (2) | O1—C1—C10A—C3A | 163.7 (2) |
| C10A—C3A—C4—O2 | 167.45 (16) | N2—C1—C10A—C3A | −20.4 (2) |
| C3—C3A—C4—O2 | −74.9 (2) | O1—C1—C10A—C10 | 36.7 (3) |
| C10A—C3A—C4—C4A | 47.5 (2) | N2—C1—C10A—C10 | −147.41 (18) |
| C3—C3A—C4—C4A | 165.10 (17) | C9B—C10—C10A—C3A | 46.8 (2) |
| O2—C4—C4A—C9B | −132.0 (2) | C19—C10—C10A—C3A | −73.1 (2) |
| C3A—C4—C4A—C9B | −13.1 (3) | C20—C10—C10A—C3A | 167.77 (19) |
| O2—C4—C4A—O5 | 45.1 (2) | C9B—C10—C10A—C1 | 169.18 (17) |
| C3A—C4—C4A—O5 | 164.06 (17) | C19—C10—C10A—C1 | 49.3 (2) |
| C9B—C4A—O5—C5A | 0.6 (2) | C20—C10—C10A—C1 | −69.8 (2) |
| C4—C4A—O5—C5A | −176.98 (17) | C1—N2—C11—C16 | −32.0 (3) |
| C4A—O5—C5A—C6 | 177.6 (2) | C3—N2—C11—C16 | 151.7 (2) |
| C4A—O5—C5A—C9A | −0.5 (2) | C1—N2—C11—C12 | 151.8 (2) |
| O5—C5A—C6—C7 | −178.00 (19) | C3—N2—C11—C12 | −24.5 (3) |
| C9A—C5A—C6—C7 | −0.2 (3) | C16—C11—C12—C13 | −2.5 (3) |
| C5A—C6—C7—C8 | 0.3 (3) | N2—C11—C12—C13 | 173.85 (19) |
| C6—C7—C8—C9 | −0.3 (4) | C11—C12—C13—C14 | 0.2 (3) |
| C7—C8—C9—C9A | 0.0 (4) | C11—C12—C13—C17 | −179.54 (19) |
| O5—C5A—C9A—C9 | 178.00 (17) | C12—C13—C14—C15 | 1.6 (3) |
| C6—C5A—C9A—C9 | −0.1 (3) | C17—C13—C14—C15 | −178.6 (2) |
| O5—C5A—C9A—C9B | 0.2 (2) | C13—C14—C15—C16 | −1.2 (3) |
| C6—C5A—C9A—C9B | −177.9 (2) | C13—C14—C15—C18 | 178.4 (2) |
| C8—C9—C9A—C5A | 0.2 (3) | C12—C11—C16—C15 | 2.9 (3) |
| C8—C9—C9A—C9B | 177.2 (2) | N2—C11—C16—C15 | −173.26 (19) |
| O5—C4A—C9B—C9A | −0.5 (2) | C14—C15—C16—C11 | −1.1 (3) |
| C4—C4A—C9B—C9A | 176.74 (19) | C18—C15—C16—C11 | 179.3 (2) |
| O5—C4A—C9B—C10 | 177.23 (18) | C9B—C10—C19—O3 | −123.8 (2) |
| C4—C4A—C9B—C10 | −5.5 (3) | C10A—C10—C19—O3 | −7.5 (3) |
| C5A—C9A—C9B—C4A | 0.2 (2) | C20—C10—C19—O3 | 113.6 (2) |
| C9—C9A—C9B—C4A | −177.0 (2) | C9B—C10—C19—O4 | 56.9 (2) |
| C5A—C9A—C9B—C10 | −177.3 (2) | C10A—C10—C19—O4 | 173.20 (19) |
| C9—C9A—C9B—C10 | 5.5 (4) | C20—C10—C19—O4 | −65.7 (2) |
| C4A—C9B—C10—C19 | 108.0 (2) | C23—N1—C21—O6 | 179.5 (2) |
| C9A—C9B—C10—C19 | −74.9 (3) | C22—N1—C21—O6 | 4.0 (3) |
| C4A—C9B—C10—C10A | −11.0 (3) |
(3aRS,4RS,10SR,10aSR)-2-(3,5-Dimethylphenyl)-4-hydroxy-10-methyl-1-oxo-2,3,3a,4,10,10a-hexahydro-1H-[1]benzofuro[2,3-f]isoindole-10-carboxylic acid dimethylformamide monosolvate . Hydrogen-bond geometry (Å, º)
Cg4 and Cg5 are the centroids of the C5A/C6–C9/C9A and C11–C16 rings, respectively.
| D—H···A | D—H | H···A | D···A | D—H···A |
| O2—H2O···O1i | 0.99 (5) | 2.23 (4) | 3.013 (2) | 135 (3) |
| O2—H2O···O3i | 0.99 (5) | 2.32 (4) | 3.152 (3) | 141 (3) |
| O4—H4O···O6 | 0.84 (4) | 1.74 (4) | 2.560 (3) | 165 (4) |
| C3—H3A···O1ii | 0.99 | 2.54 | 3.452 (3) | 152 |
| C8—H8···O6iii | 0.95 | 2.44 | 3.344 (3) | 159 |
| C16—H16···O1 | 0.95 | 2.44 | 2.970 (3) | 115 |
| C20—H20B···O1 | 0.98 | 2.59 | 3.229 (3) | 123 |
| C10A—H10A···Cg5ii | 1.00 | 2.88 | 3.865 (2) | 169 |
| C22—H22A···Cg5iv | 0.98 | 2.96 | 3.401 (3) | 109 |
| C22—H22C···Cg4v | 0.98 | 2.68 | 3.594 (3) | 155 |
Symmetry codes: (i) x, y−1, z; (ii) −x+2, y−1/2, −z+1; (iii) −x+1, y−1/2, −z+2; (iv) −x+1, y+1/2, −z+1; (v) x, y+1, z.
Funding Statement
This publication was supported by the Russian Science Foundation (project No. 24–23–00212), see https://rscf.ru/project/24–23–00212/.
References
- Bernstein, J., Davis, R. E., Shimoni, L. & Chang, N.-L. (1995). Angew. Chem. Int. Ed. Engl.34, 1555–1573.
- Chou, S. P. & Wu, C.-J. J. (2012). Tetrahedron68, 1185–1191.
- Cremer, D. & Pople, J. A. (1975). J. Am. Chem. Soc.97, 1354–1358.
- Elliott, L. D. & Booker-Milburn, K. I. (2019). Org. Lett.21, 1463–1466. [DOI] [PubMed]
- Epstein, W. W. & Sweat, F. W. (1967). Chem. Rev.67, 247–260.
- Farrugia, L. J. (2012). J. Appl. Cryst.45, 849–854.
- Groom, C. R., Bruno, I. J., Lightfoot, M. P. & Ward, S. C. (2016). Acta Cryst. B72, 171–179. [DOI] [PMC free article] [PubMed]
- Horak, Y. I., Lytvyn, R. Z., Laba, Y. V., Homza, Y. V., Zaytsev, V. P., Nadirova, M. A., Nikanorova, T. V., Zubkov, F. I., Varlamov, A. V. & Obushak, M. D. (2017). Tetrahedron Lett.58, 4103–4106.
- Krishna, G., Grudinin, D. G., Nikitina, E. V. & Zubkov, F. I. (2022). Synthesis54, 797–863.
- Mammadova, G. Z., Yakovleva, E. D., Erokhin, P. P., Grigoriev, M. S., Atioğlu, Z., Azizova, A. N., Akkurt, M. & Bhattarai, A. (2023). Acta Cryst. E79, 1127–1131. [DOI] [PMC free article] [PubMed]
- Mariaule, G., De Cesco, S., Airaghi, F., Kurian, J., Schiavini, P., Rocheleau, S., Huskić, I., Auclair, K., Mittermaier, A. & Moitessier, N. (2016). J. Med. Chem.59, 4221–4234. [DOI] [PubMed]
- Nadirova, M. A., Laba, Y. V., Zaytsev, V. P., Sokolova, J. S., Pokazeev, K. M., Anokhina, V. A., Khrustalev, V. N., Horak, Y. I., Lytvyn, R. Z., Siczek, M., Kinzhybalo, V., Zubavichus, Y. V., Kuznetsov, M. L., Obushak, M. D. & Zubkov, F. I. (2020). Synthesis52, 2196–2223.
- Paddon-Row, M. N., Longshaw, A. I., Willis, A. C. & Sherburn, M. S. (2009). Chem. Asian J.4, 126–134. [DOI] [PubMed]
- Parsons, S., Flack, H. D. & Wagner, T. (2013). Acta Cryst. B69, 249–259. [DOI] [PMC free article] [PubMed]
- Rigaku OD (2021). CrysAlis PRO. Rigaku Oxford Diffraction, Yarnton, England.
- Sheldrick, G. M. (2015a). Acta Cryst. A71, 3–8.
- Sheldrick, G. M. (2015b). Acta Cryst. C71, 3–8.
- Shelukho, E. R., Yakovleva, E. D., Logvinenko, N. A., Khrustalev, V. N., Novikov, R. A., Zubkov, F. I. & Zaytsev, V. P. (2025). Synlett36, 1358–1362.
- Spackman, P. R., Turner, M. J., McKinnon, J. J., Wolff, S. K., Grimwood, D. J., Jayatilaka, D. & Spackman, M. A. (2021). J. Appl. Cryst.54, 1006–1011. [DOI] [PMC free article] [PubMed]
- Spek, A. L. (2020). Acta Cryst. E76, 1–11. [DOI] [PMC free article] [PubMed]
- Yakovleva, E. D., Shelukho, E. R., Nadirova, M. A., Erokhin, P. P., Simakova, D. N., Khrustalev, V. N., Grigoriev, M. S., Novikov, A. P., Romanycheva, A. A., Shetnev, A. A., Bychkova, O. P., Trenin, A. S., Zubkov, F. I. & Zaytsev, V. P. (2024). Org. Biomol. Chem.22, 2643–2653. [DOI] [PubMed]
- Zaytsev, V. P., Lovtsevich, L. V., Pokazeev, K. M., Sorokina, E. A., Dorovatovskii, P. V., Khrustalev, V. N., Romanycheva, A. A., Shetnev, A. A., Volobueva, A. S., Esaulkova, I. L., Slita, A. V., Zarubaev, V. V. & Zubkov, F. I. (2023). Tetrahedron131, 133205.
- Zaytsev, V. P., Simakova, D. N., Maslova, V. S., Ilyushenkova, V. V., Novikov, R. A., Grigoriev, M. S., Danilov, R. D., Litvinov, R., Kolesnik, I. A., Potkin, V. I. & Zubkov, F. I. (2025). Org. Biomol. Chem.23, 3925–3936. [DOI] [PubMed]
- Zhong, C.-Z., Tung, P.-T., Chao, T.-H. & Yeh, M. P. (2017). J. Org. Chem.82, 481–501. [DOI] [PubMed]
- Zubkov, F. I., Zaytsev, V. P., Mertsalov, D. F., Nikitina, E. V., Horak, Y. I., Lytvyn, R. Z., Homza, Y. V., Obushak, M. D., Dorovatovskii, P. V., Khrustalev, V. N. & Varlamov, A. V. (2016). Tetrahedron72, 2239–2253.
Associated Data
This section collects any data citations, data availability statements, or supplementary materials included in this article.
Supplementary Materials
Crystal structure: contains datablock(s) I. DOI: 10.1107/S2056989025006814/ex2094sup1.cif
Structure factors: contains datablock(s) I. DOI: 10.1107/S2056989025006814/ex2094Isup2.hkl
Supporting information file. DOI: 10.1107/S2056989025006814/ex2094Isup3.cml
CCDC reference: 2477243
Additional supporting information: crystallographic information; 3D view; checkCIF report








