Table 1.
Comparative NMR data of Caulerpin (1) with the literature data [17].
| Analyzed Compound | Caulerpin [17] | |||
|---|---|---|---|---|
| Carbons | δH | δC | δH | δC |
| N | 9.21 (s, 1H) | — | 9.20 (s, 1H) | — |
| 2/2′ | — | 133.0 (q) | — | 132.8 (q) |
| 3/3′ | — | 112.0 (q) | — | 112.4 (q) |
| 3a/3a′ | — | 128.3 (q) | — | 128.1 (q) |
| 4/4′ | 7.43 (d, 1H) | 118.4 (CH) | 7.41(d, 1H) | 118.0 (CH) |
| 5/5′ | 7.09 (t, 1H) | 120.8 (CH) | 7.07 (t, 1H) | 120.7 (CH) |
| 6/6′ | 7.18 (t, 1H) | 123.5 (CH) | 7.17 (t, 1H) | 123.3 (CH) |
| 7/7′ | 7.30 (d, 1H) | 111.7 (CH) | 7.29 (d, 1H) | 111.5 (CH) |
| 7a/7a′ | — | 137.8 (q) | — | 137.7 (q) |
| 8/8′ | — | 125.6 (q) | — | 125.6 (q) |
| 9/9′ | 8.06 (s, 1H) | 142.9 (CH) | 8.04 (s, 1H) | 142.9 (CH) |
| 10/10′ | — | 166.8 (q) | — | 166.6 (q) |
| 11/11′ | 3.90 (s, 3H) | 52.7 (CH3) | 3.88 (s, 3H) | 52.6 (CH3) |