Table 1.
1H NMR data of lobocatalens A–G (1–7) (CDCl3).
| No. | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
| δH a (J in Hz) | δH b (J in Hz) | δH b (J in Hz) | δH b (J in Hz) | δH a (J in Hz) | δH a (J in Hz) | δH b (J in Hz) | |
| 1 | |||||||
| 2 | 1.99, dd (4.0,12.4) | 2.02, m | 2.07, dd (3,12.6) | 2.01, m | 2.01, m | 2.12, dd (3.5,12.5) | 2.01, dd (4.5,16.5) |
| 3a | 1.57, m | 1.60, m | 1.61, m | 1.52, m | 1.57, m | 1.78, m | 1.60, m |
| 3b | 1.49, m | 1.52, m | 1.50, m | 1.64, m | 1.59, m | 1.33, m | 1.72, m |
| 4 | 1.92, m | 2.08, m | 2.47, m | 2.05, m | 1.93, m | 2.86, m | 2.62, m |
| 5a | 1.61, m | 1.63, m | 1.54, m | 1.60, m | 1.47, m | 1.42, m | 1.66, m |
| 5b | 1.39, m | 1.47, m | 1.51, m | 1.63, m | 1.61, m | 1.75, m | |
| 6a | 1.44, m | 1.43, m | 1.52, m | 1.49, m | 1.49, m | 1.47, m | 1.50, m |
| 6b | 1.44, m | ||||||
| 7 | 0.99, s | 1.00, s | 1.01, s | 1.01, s | 1.01, s | 1.03, s | 1.01, s |
| 8 | 5.80, dd (10.4,17.6) | 5.80, dd (10.8,18) | 5.80, dd (10.2,18) | 5.81, dd (10.5,17.5) | 5.82, dd (10.4,17.6) | 5.84, m | 5.81, dd (11.5,18) |
| 9a | 4.91, d (3.6) | 4.91, d (3.2) | 4.91, d (4.2) | 4.93, d (3.0) | 4.93, d (4.4) | 4.94, m | 4.94, m |
| 9b | 4.87, s | 4.88, s | 4.89, s | 4.90, d (2.5) | 4.89, s | 4.90, m | |
| 10 | |||||||
| 11a | 4.81, s | 4.81, s | 4.57, s | 4.84, s | 4.82, s | 4.84, s | 4.84, s |
| 11b | 4.57, s | 4.57, s | 4.80, s | 4.59, s | 4.59, s | 4.61, s | 4.61, s |
| 12 | 1.69, s | 1.70, s | 1.69, s | 1.71, s | 1.71, s | 1.73, s | 1.71, s |
| 13 | |||||||
| 14a | 5.36, s | 5.48, s | 7.27, s | 2.17, s | 4.84, s | 1.90, s | 6.34, d (18.0) |
| 14b | 4.69, s | ||||||
| 15 | 5.28, m | 5.86, m | 6.04, s | 2.37, m | 5.97, d (11.6) | 6.80, m | |
| 16a | 2.62, d (18.0) | 1.97, m | 2.45, dd (3,16.8) | 2.71, m | 7.50, m | 5.27, m | |
| 16b | 2.13, d (4.4,18.4) | 2.12, m | 2.65, dd (15.6,16.8) | ||||
| 17 | 4.19, d (4.8) | 3.78, dd (3.6,11.2) | 4.11, dd (3.0,15.0) | 2.63, s | 6.11, dd (4.05,15.4) | ||
| 18 | 1.26, s | ||||||
| 19 | 1.29, s | 1.27, s | 1.31, s | 1.26, s | 1.40, s | 2.29, s | 1.23, s |
| 20 | 1.36, s | 1.23, s | 1.24, s | 1.26, s | 1.40, s | ||
| 21 | 2.15, s |
a Spectra recorded at 500 MHz. b Spectra recorded at 600 MHz.