Table 5 13C NMR spectroscopic data of compounds (1)–(3) [400 MHz,δ (ppm)] purified from the LRE541extract
(1) (CDCl3) | (2) (CDCl3) | (3) ((CD3)2CO) | |||
|---|---|---|---|---|---|
Position | δC | Position | δC | Position | δC |
1 | 159 | 1 | 158.6 | 2 | 144.8 |
2 | 130 | 2 | 130.3 | 3 | 104.4 |
3 | 129.7 | 3 | 129.8 | 3a | 126.6 |
4 | 157.9 | 4 | 158 | 4 | 119.7 |
5 | 191.2 | 5 | 191.1 | 5 | 120.7 |
6 | 161.8 | 6 | 161.2 | 6 | 127.3 |
7 | 20.3 | 7 | 62.6 | 7 | 110.7 |
8 | 28.8 | 8 | 32 | 7a | 136.2 |
9 | 71.8 | 9 | 70.1 | 8 | 112.4 |
10 | 57.3 | 10 | 57.6 | 9 | 122.2 |
11 | 121 | 11 | 120.8 | 10 | 160.3 |
12 | 186.5 | 12 | 185.3 | 12 | 52.2 |
13 | 171.7 | 13 | 170.3 | 13 | 166.9 |
14 | 53.4 | 14 | 53 | 15 | 40.1 |
15 | 32.6 | 15 | 34.7 | 15a × 2 | 27.9 |
16 | 7 | 16 | 6.3 | 16 | 146 |
4a | 113 | 4a | 112.5 | 17 | 112.3 |
5a | 131.3 | 5a | 132.2 | Â | Â |
6a | 134.5 | 6a | 132.8 | Â | Â |
10a | 142.1 | 10a | 142.6 | Â | Â |
11a | 114 | 11a | 114.9 | Â | Â |
12a | 112.9 | 12a | 112.3 | Â | Â |