Table 1.
The 1H (600 MHz) and 13C NMR (150 MHz) Data a of 1 and 8 in CDCl3.
| 1 (δ in ppm, Multi, J in Hz) | 8 (δ in ppm, Multi, J in Hz) | |||||||
|---|---|---|---|---|---|---|---|---|
| No. | δ H | δ C | No. | δ H | δ C | No. | δ H | δ C |
| 1 | 1.75 (m) 1.29 (m) |
31.7 | 16 | 1.43 (o) 1.73 (m) |
27.6 | 2 | - | 172.0 |
| 2 | 1.43 (o) 1.86 (m) |
31.1 | 17 | 1.19 (m) | 57.3 | 3 | - | 125.5 |
| 3 | 4.11 (tt, 11.0, 5.2) | 67.5 | 18 | 0.91 (s) | 17.7 | 4 | - | 157.7 |
| 4 | 1.69 (m) 1.95 (m) |
40.6 | 19 | 0.91 (s) | 17.8 | 5 | - | 106.9 |
| 5 | - | 76.8 | 20 | 2.14 (m) | 39.4 | 6 | 1.75 (m) 1.97 (m) |
36.2 |
| 6 | 3.12 (d, 2.3) | 85.7 | 21 | 1.05 (d, 6.7) | 21.5 | 7 | 1.17 (m) 1.27 (o) |
23.0 |
| 7 | 4.22 (d, 2.3) | 76.4 | 22 | 5.19 (dd, 15.3, 8.2) | 135.4 | 8 | 1.27 (o) | 29.4 |
| 8 | - | 122.2 | 23 | 5.25 (dd, 15.3, 7.3) | 132.5 | 9 | 1.27 (o) | 29.3 |
| 9 | 2.33 (m) | 36.7 | 24 | 1.86 (m) | 43.0 | 10 | 1.27 (o) | 29.2 |
| 10 | - | 41.1 | 25 | 1.48 (m) | 33.2 | 11 | 1.27 (o) | 29.2 |
| 11 | 1.53 (m) 1.57 (m) |
19.3 | 26 | 0.84 (d, 6.8) | 20.1 | 12 | 1.60 (m) | 25.0 |
| 12 | 1.16 (m) 2.00 (m) |
37.1 | 27 | 0.83 (d, 6.7) | 19.8 | 13 | 2.29 (t, 7.5) | 34.2 |
| 13 | - | 43.9 | 28 | 0.93 (d, 6.8) | 17.4 | 14 | - | 174.5 |
| 14 | - | 153.6 | 5-OH | 4.40 (s) | - | 15 | 1.82 (d, 1.2) | 8.6 |
| 15 | 2.32 (m) 2.40 (m) |
25.8 | 6-OCH3 | 3.36 (s) | 59.5 | 16 | 1.94 (d, 1.2) | 10.8 |
| 7-OCH3 | 3.21 (s) | 54.7 | 14-OCH3 | 3.66 (s) | 51.6 | |||
a Overlapping signals are expressed as o.