Table 2. Experimental details.
| Crystal data | |
| Chemical formula | C21H25NO3 |
| M r | 339.42 |
| Crystal system, space group | Monoclinic, P21 |
| Temperature (K) | 133 |
| a, b, c (Å) | 15.7976 (5), 5.9184 (3), 19.5340 (8) |
| β (°) | 90.310 (2) |
| V (Å3) | 1826.33 (13) |
| Z | 4 |
| Radiation type | Mo Kα |
| μ (mm−1) | 0.08 |
| Crystal size (mm) | 0.11 × 0.10 × 0.09 |
| Data collection | |
| Diffractometer | Nonius KappaCCD |
| Absorption correction | Multi-scan (SADABS; Krause et al., 2015 ▸) |
| T min, T max | 0.659, 0.746 |
| No. of measured, independent and observed [I > 2σ(I)] reflections | 18477, 8221, 7092 |
| R int | 0.051 |
| (sin θ/λ)max (Å−1) | 0.649 |
| Refinement | |
| R[F 2 > 2σ(F 2)], wR(F 2), S | 0.069, 0.140, 1.09 |
| No. of reflections | 8221 |
| No. of parameters | 460 |
| No. of restraints | 1 |
| H-atom treatment | H-atom parameters constrained |
| Δρmax, Δρmin (e Å−3) | 0.27, −0.25 |
| Absolute structure | Twinning involves inversion, so Flack parameter cannot be determined |