Table 5.
NMR data for compound 4
| No. | 13C | 1H | HMBC |
|---|---|---|---|
| 1 | 164.0 | – | – |
| 2′ | 131.7 | 8.38, 1H, s | 1, 3′, 3′a, 7′a, 1″ |
| 3′ | 109.9 | – | – |
| 3′a | 126.6 | – | – |
| 4′ | 121.1 | 8.12, 1H, m | 3′, 6′, 7′a |
| 5′ | 120.8 | 7.14, 1H, m, overlapped | 3′a, 7′ |
| 6′ | 122.1 | 7.16, 1H, m, overlapped | 4′, 7′a |
| 7′ | 110.7 | 7.52, 1H, m, overlapped | 3′a, 5′ |
| 7′a | 136.1 | – | – |
| 1″ | 49.5 | 5.46, 2H, m | 2′, 7′a, 2″, 3″/7″ |
| 2″ | 137.5 | – | – |
| 3″/7″ | 127.2 | 7.27, 2H, m, overlapped | 1″, 5″ |
| 4″/6″ | 128.6 | 7.33, 2H, m | 2″, 5″ |
| 5″ | 127.6 | 7.27, 1H, m, overlapped | 3″/7″ |
| 1‴ | 173.5 | – | – |
| 2‴ | 57.5 | 4.36, 1H, dd, J = 8.8, 7.2 Hz | 1, 1‴, 3‴, 4‴, 5‴ |
| 3‴ | 30.4 | 2.09, 1H, m | 1‴, 2‴, 4‴, 5‴ |
| 4‴ | 19.5 | 0.95, 3H, d, J = 6.8 Hz | 2‴, 3‴, 5‴ |
| 5‴ | 18.5 | 0.94, 3H, d, J = 6.8 Hz | 2‴, 3‴, 4‴ |
| 1-CONH | – | 7.59, 1H, d, J = 8.8 Hz | 1, 2‴ |
| 1‴-CONH2 | – | 7.50, 1H, brs, overlapped | 1‴ |
| – | 7.06, 1H, brs | 1‴, 2‴ |
Recorded under the same conditions as specified in Table 2