Table 5.
NMR data for argimycins PI-PII (1H, 500 MHz; 13C, 150 MHz, in CD3OD)
| Argimycin PI |
Argimycin PII | ||
|---|---|---|---|
| Carbon | δH (mult, J, Hz) | δC (ppm) | δH (mult, J, Hz) |
| 2 | 8.30 (d, 5.2) | 143.6 | 8.30 (d, 5.2) |
| 3 | 7.27 (dd, 7.7, 5.2) | 119.2 | 7.24 (dd, 7.7, 5.2) |
| 4 | 8.25 (d, 7.7) | 127.9 | 8.12 (d, 7.7) |
| 4a | – | 131.9 | – |
| 5 | – | n.d. | – |
| 6 | 7.67 (d, 5.6) | 130.9 | 7.43 (d, 5.6) |
| 7 | 7.00 (d, 5.6) | 127.4 | 6.98 (d, 5.6) |
| 7a | – | 159.1 | – |
| 8 | 7.69 (d, 11.8) | 128.5 | 7.80 (d, 11.8) |
| 9 | 6.96 (d, 11.8) | 117.3 | 7.03 (d, 11.8) |
| 10 | – | 148.2 | – |
| 11 | 2.33 (br s) 3H | 17.6 | 2.38 (br s) 3H |
| 12 | 3.62 (dd, 13.0, 4.6) 3.27 (dd, 13.0, 7.7) | 32.4 | 3.49 (dd, 13.0, 4.6) 3.23 (dd, 13.0, 7.7) |
| 13 | 4.74 (dd, 7.7, 4.7) | 52.1 | 4.61 (dd, 7.7, 4.7) |
| 14 | – | 172.3 | – |
| 16 | – | 171.7 | – |
| 17 | 2.01 (s) 3H | 21.0 | 1.99 (s) 3H |
| Nitrogen | δN (ppm) | ||
| 1 | 259.1 | ||
| 15 | 121.9 | ||