Table 1.
600MHz and 13C NMR (150MHz) data of clauolenzoles A and B (1,2).
| Position | 1 (CDCl3) | 2 (acetone-d6) | ||
|---|---|---|---|---|
| δH (J in Hz) | δC, Type | δH (J in Hz) | δC, Type | |
| 1 | 7.22, s | 112.8, CH | 6.97, s | 96.2, CH |
| 2 | / | 121.2, C | / | 153.9, C |
| 3 | / | 138.8, C | / | 116.8, C |
| 4 | 8.74, s | 124.1, CH | 7.87, s | 123.8, CH |
| 5 | 8.07, d (7.8) | 120.4, CH | / | 149.8, C |
| 6 | 7.26, m | 120.2, CH | 6.46, d (5.6) | 98.8, CH |
| 7 | 7.42, m, overlap | 126.1, CH | 6.69, d (5.6) | 104.8, CH |
| 8 | 7.41, m, overlap | 110.8, CH | / | 140.4, C |
| 1a | / | 141.9, C | / | 139.2, C |
| 4a | / | 123.4, C | / | 116.0, C |
| 5a | / | 121.1, C | / | 113.8, C |
| 8a | / | 139.9, C | / | 130.8, C |
| 2-CH3 | 2.77, s | 23.0, CH3 | ||
| 3-CH3 | 2.29, s | 15.8, CH3 | ||
| 3-COOCH3 | / | 168.5, C | ||
| 3.95, s | 51.6, CH3 | |||
| 5-OCH3 | 3.93, s | 54.9, CH3 | ||
| 8-OCH3 | 3.86, s | 55.3, CH3 | ||
| 2-OH | 8.09, s | / | ||
| NH | 8.15, br s | / | 9.87, br s | / |