Table 2. 13C NMR (100b, 125c, and 200d MHz) Data for Compounds 1–6a.
| no. | 1b | 2b | 3c | 4d | 5b | 6b |
|---|---|---|---|---|---|---|
| 1 | 153.9, CH | 154.0, CH | 33.6, CH2 | 153.9, CH | 33.4, CH2 | 32.2, CH2 |
| 2 | 126.9, CH | 126.9, CH | 37.6, CH2 | 126.7, CH | 37.5, CH2 | 30.4, CH2 |
| 3 | 205.1, C | 205.3, C | 215.0, C | 205.3, C | 216.6, C | 78.7, CH |
| 4 | 46.3, C | 46.3, C | 50.3, C | 46.0, C | 50.3, C | 40.5, C |
| 5 | 45.7, CH | 45.7, CH | 48.7, CH | 44.3, CH | 48.5, CH | 47.3, CH |
| 6 | 20.5, CH2 | 20.5, CH2 | 21.8, CH2 | 19.7, CH2 | 21.5, CH2 | 21.2, CH2 |
| 7 | 25.0, CH2 | 25.0, CH2 | 26.6, CH2 | 23.8, CH2 | 26.1, CH2 | 26.3, CH2 |
| 8 | 47.3, CH | 47.3, CH | 49.1, CH | 44.7, CH | 48.0, CH | 48.6, CH |
| 9 | 23.1, C | 23.2, C | 21.2, C | 24.4, C | 21.0, C | 19.6, C |
| 10 | 29.2, C | 29.0, C | 26.0, C | 29.9, C | 26.0, C | 26.0, C |
| 11 | 39.2, CH2 | 39.6, CH2 | 40.3, CH2 | 27.6, CH2 | 26.5, CH2 | 38.3, CH2 |
| 12 | 73.1, CH | 73.2, CH | 72.4, CH | 32.6, CH2 | 33.0, CH2 | 73.6, CH |
| 13 | 49.6, C | 49.6, C | 50.1, C | 45.8, C | 45.8, C | 49.5, C |
| 14 | 46.8, C | 46.7, C | 47.1, C | 47.3, C | 46.9, C | 46.8, C |
| 15 | 48.4, CH2 | 45.7, CH2 | 50.8, CH2 | 46.0, CH2 | 47.1, CH2 | 49.0, CH2 |
| 16 | 72.2, CH | 71.7, CH | 71.7, CH | 71.7, CH | 72.1, CH | 72.6, CH |
| 17 | 49.2, CH | 49.6, CH | 49.3, CH | 52.0, CH | 52.3, CH | 49.1, CH |
| 18 | 17.9, CH3 | 17.7, CH3 | 18.6, CH3 | 17.8, CH3 | 18.9, CH3 | 17.7, CH3 |
| 19 | 32.2, CH2 | 32.2, CH2 | 29.6, CH2 | 30.1, CH2 | 29.8, CH2 | 30.0, CH2 |
| 20 | 31.2, CH | 29.4, CH | 31.6, CH | 34.9, CH | 35.0, CH | 31.3, CH |
| 21 | 17.7, CH3 | 17.0, CH3 | 17.8, CH3 | 16.1, CH3 | 15.9, CH3 | 17.8, CH3 |
| 22 | 33.5, CH2 | 29.3, CH2 | 34.1, CH2 | 74.2, CH | 74.2, CH | 33.5, CH2 |
| 23 | 30.9, CH2 | 36.7, CH2 | 32.3, CH2 | 34.3, CH | 34.5, CH2 | 30.9, CH2 |
| 24 | 78.7, CH | 217.1, C | 77.4, CH | 76.2, CH | 76.1, CH | 78.7, CH |
| 25 | 34.0, CH | 41.0, CH | 34.2, CH | 32.5, CH | 32.6, CH | 33.9, CH |
| 26 | 18.7, CH3 | 18.4, CH3 | 19.8, CH3 | 18.8, CH3 | 18.7, CH3 | 18.8, CH3 |
| 27 | 17.4, CH3 | 18.3, CH3 | 17.7, CH3 | 18.7, CH3 | 19.0, CH3 | 17.4, CH3 |
| 28 | 21.1, CH3 | 21.3, CH3 | 22.1, CH3 | 19.6, CH3 | 20.3, CH3 | 21.4, CH3 |
| 29 | 21.6, CH3 | 21.6, CH3 | 22.7, CH3 | 21.4, CH3 | 22.2, CH3 | 25.4, CH3 |
| 30 | 19.1, CH3 | 19.1, CH3 | 20.8, CH3 | 19.1, CH3 | 20.8, CH3 | 14.0, CH3 |
Assignments were based on COSY and HSQC experiments. Compound 3 was dissolved with pyridine-d5, and others used CDCl3.