Table 2 1H and 13C NMR data of compound 1 and 2 in CD3OD
Position | 1 | 2 | ||||
|---|---|---|---|---|---|---|
δH (J, HZ) | δC | δH (J, HZ) | δC | |||
1 | — | 138.6 | — | 138.7 | ||
2 | 7.52 m | 125.9 | 7.52 m | 125.9 | ||
3 | 7.44 m | 128.3 | 7.44 m | 128.3 | ||
4 | 7.39 m | 128.3 | 7.39 m | 128.3 | ||
5 | 7.44 m | 128.3 | 7.44 m | 128.3 | ||
6 | 7.52 m | 125.9 | 7.52 m | 125.9 | ||
7 | 5.61 dd (11.5, 3.0) | 80.8 | 5.61 dd (11.5, 3.0) | 80.5 | ||
8 | 3.25 m | 34.2 | 3.25 m | 34.7 | ||
3.11 dd (16.5, 3.5) | 3.11 dd (16.5, 3.5) | |||||
9 | — | 136.0 | — | 142.0 | ||
10 | 6.37 s | 106.5 | 6.28 s | 106.6 | ||
11 | — | 157.2 | — | 165.0 | ||
12 | — | 133.8 | 6.25 s | 100.9 | ||
13 | — | 156.3 | — | 164.3 | ||
14 | — | 101.0 | — | 100.3 | ||
14-COOH | — | 170.3 | — | 170.1 | ||
12-OCH3 | 3.86 s | 59.5 | ||||