Table 1 1H-NMR, 13C-NMR, and HMBC assignments of 1 in CDCl3 (δ in ppm).
No | δC, type | δH Multiplicity (J in Hz) | HMBC |
|---|---|---|---|
1, 1’ | 156.3, C | ||
2, 2’, 6, 6’ | 113.9, CH | 6.81, d (8.8) | 1, 4, 6 |
3, 3’, 5, 5’ | 127.7, CH | 7.13, d (8.8) | 1, 2, 3, 11 |
4, 4’ | 143.5, C | ||
7a, 7’a | 69.0, CH2 | 3.98, dd (9.4, 6.0) | 1, 8, 9 |
7b, 7’b | 4.01, dd (9.4, 4.4) | ||
8, 8’ | 68.8, CH | 4.14, m | 7, 9 |
9a, 9’a | 73.4, CH2 | 3.53, dd (9.7, 6.0) | 7, 10 |
9b, 9b’ | 3.58. dd (9.7, 4.4) | ||
10, 10’ | 59.2, CH3 | 3.40, s | 9 |
11, 11’ | 41.7, C | ||
12, 12’ | 32.0, CH3 | 1.62, s | 4, 11, 12’ |
8-OH, 8’-OH | 5.29, s |
