Table 2.
1H and 13C NMR assignments for compounds 4–6 (mult., J in Hz).
| No. | 4 a | 5 a | 6 a | |||
|---|---|---|---|---|---|---|
|
|
|
|
||||
| δ C | δ H | δ C | δ H | δ C | δ H | |
| 1 | 109.5 | 171.9 | 28.6 | 1.30 m 1.68 m |
||
| 2 | 158.6 | 19.3 | 1.55 m 1.67 m |
|||
| 3 | 116.9 | 6.81 d (9.0) | 77.5 | 4.73 qd (6.6, 14.4) | 29.7 | 1.45 dd (7.6, 14.4) 2.08 ddd (4.8, 7.6, 14.4) |
| 4 | 127.1 | 7.50 d (9.0) | 32.3 | 2.92 dd (11.4, 16.8) 3.31, m |
44.0 | |
| 5 | 147.2 | 126.8 | 45.3 | 2.39 d (4.8) | ||
| 6 | 130.7 | 139.4 | 7.58 d (8.4) | 75.7 | 4.84 m | |
| 7 | 29.6 | 2.70 dd (11.4, 17.4) 3.47 dd (3.6, 17.4) |
116.4 | 6.84 d (8.4) | 120.8 | 5.74 dd (2.4, 4.8) |
| 8 | 77.9 | 4.71 dq (3.6, 6.0) | 163.3 | 146.9 | ||
| 9 | 21.2 | 1.52 d (6.0) | 109.7 | 74.0 | ||
| 10 | 171.6 | 141.5 | 39.4 | |||
| 11 | 67.7 | 4.54 d (12.0) | 27.5 | 1.53 ddd (3.0, 4.2, 14.4) | ||
| 4.71 d (12.0) | 1.86 ddd (4.2, 13.2, 14.4) | |||||
| 12 | 21.1 | 1.52 d (6.6) | 33.6 | 1.37 m 1.73 ddd (4.2, 13.2, 13.2) |
||
| 13 | 34.6 | |||||
| 14 | 45.4 | 2.02 dd (3.0, 15.0) 2.35 m |
||||
| 15 | 45.1 | 1.58 t (6.6) | ||||
| 16 | 65.2 | 3.51 td (6.6, 11.4) 3.88 td (6.6, 11.4) |
||||
| 17 | 22.6 | 0.88 s | ||||
| 18 | 25.3 | 1.29 s | ||||
| 19 | 185.9 | |||||
| 20 | 22.8 | 0.97 s | ||||
| 1′ | 101.2 | 5.34 d (3.6) | 99.4 | 4.84 d (3.6) | 101.9 | 4.73 d (1.8) |
| 2′ | 73.4 | 3.58 dd (3.6, 9.6) | 73.6 | 3.40 dd (3.6, 9.6) | 72.4 | 3.77 dd (1.8, 3.6) |
| 3′ | 75.0 | 3.81 dd (9.6, 9.6) | 75.2 | 3.64 dd (9.6, 9.6) | 72.8 | 3.67 dd (3.6, 9.6) |
| 4′ | 71.8 | 3.39 dd (9.6, 9.6) | 72.0 | 3.27 dd (9.6, 9.6) | 68.9 | 3.59 dd (9.6, 9.6) |
| 5′ | 75.0 | 3.70 m | 74.2 | 3.53 ddd (2.4, 6.0, 9.6) | 75.0 | 3.54 ddd (2.4, 6.0, 9.6) |
| 6′ | 62.7 | 3.69 m | 62.9 | 3.77 dd (6.0, 11.4) | 63.1 | 3.71 dd (6.0, 11.4) |
| 3.79 m | 3.79 dd (2.4, 11.4) | 3.84 dd (2.4, 11.4) | ||||
a
Data were measured in CD3OD at 600 MHz for 1H and 150 MHz for 13C.