Table 2.
1H NMR (600 MHz) data of compounds 1–4 in CD3OD.
| No. | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| δ H (J in Hz) | δ H (J in Hz) | δ H (J in Hz) | δ H (J in Hz) | |
| 1a | 3.71 (dd, 11.0, 5.8) | 3.71 (dd, 11.0, 5.6) | 2.70 (dd, 14.9, 5.7) | 2.14 (m) |
| 1b | 2.17 (dd, 14.9, 1.9) | 2.14 (m) | ||
| 2a | 2.86 (ddd, 13.9, 9.6, 5.8) | 2.87 (ddd, 15.9, 9.6, 5.6) | 2.97 (m) | 2.62 (m) |
| 2b | 1.42 (m) | 1.44 (m) | 2.62 (m) | |
| 3 | 4.04 (dd, 9.6, 8.0) | 4.04 (dd, 9.5, 8.2) | ||
| 6a | 2.05 (dd, 13.9, 3.7) | 2.02 (m) | 4.41 (dd, 3.8, 2.5) | 5.91 (d, 6.2) |
| 6b | 1.94 (dd, 13.9, 10.9) | 2.02 (m) | ||
| 7 | 4.37 (dd, 10.9, 3.7) | 4.51 (dd, 10.5, 4.2) | 5.64 (brs) | 6.17 (d, 6.2) |
| 11a | 2.30 (ddd, 14.0, 9.4, 7.6) | 2.36 (td, 12.9, 11.9, 3.3) | 5.75 (dd, 3.8, 3.7) | 5.57 (m) |
| 11b | 1.63 (m) | 1.79 (m) | ||
| 12a | 1.59 (m) | 1.75 (m) | 2.01 (m) | 2.04 (m) |
| 12b | 1.59 (m) | 1.75 (m) | 2.01 (m) | 2.04 (m) |
| 15 | 5.78 (dd, 5.9, 3.4) | 5.98 (s) | 4.01 (dd, 11.1, 5.7) | 4.10 (dd, 10.1, 6.7) |
| 16a | 2.15 (dd, 17.7, 3.4) | 1.44 (m) | 1.51 (m) | |
| 16b | 1.99 (dd, 17.7, 5.9) | 1.44 (m) | 1.51 (m) | |
| 18 | 1.24 (d, 2.1) | 1.73 (m) | 1.32 (d, 2.2) | 1.35 (brs) |
| 19 | 1.37 (m) | 1.33 (s) | 1.17 (m) | 1.15 (m) |
| 20 | 1.53 (m) | 1.61 (m) | 1.54 (m) | 1.56 (m) |
| 21a | 1.60 (m) | 1.67 (m) | 3.44 (ddd, 11.7, 9.8, 6.6) | 3.44 (ddd, 11.4, 9.7, 6.6) |
| 21b | 1.21 (m) | 1.28 (m) | ||
| 22a | 1.39 (m) | 1.72 (m) | 2.15 (m) | 2.21 (dd, 14.9, 9.7) |
| 22b | 1.56 (m) | 1.72 (m) | 1.18 (m) | 1.21 (m) |
| 23 | 0.94 (s) | 0.94 (s) | 1.24 (s) | 1.26 (s) |
| 24 | 0.86 (s) | 0.87 (s) | 1.22 (s) | 1.29 (s) |
| 25 | 0.99 (s) | 1.01 (s) | 1.38 (s) | 1.11 (s) |
| 26 | 1.32 (s) | 1.40 (s) | 0.77 (s) | 1.05 (s) |
| 27 | 1.13 (s) | 1.28 (s) | 0.65 (s) | 0.70 (s) |
| 28 | 1.08 (s) | 1.31 (s) | 1.17 (s) | 1.20 (s) |
| 29 | 1.11 (d, 7.1) | 1.17 (d, 6.8) | 1.14 (d, 6.6) | 1.14 (d, 6.7) |
| 30 | 1.00 (d, 6.5) | 1.00 (d, 6.5) | 1.06 (d, 6.1) | 1.06 (d, 6.1) |