Table 2.
NMR data for amycocyclopiazonic acid (2) in pyridine-d5.
| C/H | δH a | Mult (J in Hz) | δC b | Type |
|---|---|---|---|---|
| 1 | 11.79 | NH | ||
| 2 | 7.46 | d (2.0) | 120.8 | CH |
| 3 | 111.1 | C | ||
| 4 | 3.76 | dd (10.0, 6.0) | 39.7 | CH |
| 5 | 4.18 | dd (10.0, 7.0) | 73.6 | CH |
| 6 | 4.83 | ddd (7.0, 7.0, 6.0) | 73.9 | CH |
| 7 | 2.99 | m | 46.8 | CH2 |
| 8 | 170.4 | C | ||
| 9 | N | |||
| 10 | 60.6 | C | ||
| 11 | 2.47 | m | 53.2 | CH |
| 12a | 3.13 | dd (12.0, 6.0) | 27.0 | CH2 |
| 12b | 3.03 | dd (12.0, 6.0) | ||
| 13 | 129.7 | C | ||
| 14 | 7.08 | d (7.5) | 116.1 | CH |
| 15 | 7.34 | dd (8.0, 7.5) | 122.4 | CH |
| 16 | 7.43 | d (8.0) | 109.0 | CH |
| 17 | 134.5 | C | ||
| 18 | 126.9 | C | ||
| 19 | 1.65 | s | 22.4 | CH3 |
| 20 | 1.74 | s | 26.4 | CH3 |
a 600 MHz; b 125 MHz.