Table 1.
1H and 13C NMR data for 1 and 2 (δ in ppm, J in Hz).
| Pos. | 1 (in CDCl3) | 2 (in CD3OD) | ||
|---|---|---|---|---|
| δH (J in Hz) | δC, Type | δH (J in Hz) | δC, Type | |
| 1a | 3.44, td (10.5, 4.3) | 71.5, CH | 1.97, td (13.4, 2.9) | 27.8, CH2 |
| 1b | 1.57, m | |||
| 2a | 1.97, dddd (12.1, 4.2, 3.6, 2.0) | 45.3, CH2 | 1.88, td (13.6, 3.0) | 34.3, CH2 |
| 2b | 0.97, ddd (12.1, 12.1, 10.7) | 1.68, m | ||
| 3 | 1.42, m | 31.8, CH | 67.3, C | |
| 4a | 1.66, dm (12.9) | 34.7, CH2 | 5.73, dd (10.2, 1.6) | 136.8, CH |
| 4b | 0.84, m | |||
| 5a | 1.59, dq (13.2, 3.3) | 23.5, CH2 | 5.90, dd (10.2, 1.6) | 131.3, CH |
| 5b | 1.02, qd (13.1, 3.5) | |||
| 6 | 1.20, m | 49.0, CH | 74.9, C | |
| 7 | 2.03, m | 30.8, CH | 77.1, C | |
| 8a | 1.53, m | 32.7, CH2 | 1.73, m | 36.3, CH2 |
| 8b | 1.31, m | 1.40, m | ||
| 9a | 1.46, m | 29.8, CH2 | 1.51, m | 20.5, CH2 |
| 9b | 1.36, m | 1.41, m | ||
| 10a | 3.36, dd (9.9, 2.0) | 78.9, CH | 1.60, m | 37.7, CH2 |
| 10b | 1.52, m | |||
| 11 | 73.3, C | 4.89, m | 72.6, CH | |
| 12 | 1.16, s | 23.3, CH3 | ||
| 13 | 1.21, s | 26.7, CH3 | 1.22, d (6.3) | 20.2, CH3 |
| 14 | 0.81, d (6.9) | 14.0, CH3 | 1.10, s | 21.2, CH3 |
| 15 | 0.91, d (6.6) | 22.3, CH3 | 1.27, s | 30.3, CH3 |
| 16 | 172.8, C | |||
| 17 | 2.01, s | 21.3, CH3 | ||