Table 1. NMR Spectral Data for Mycangimycin (1) in CD3OD/CDCl3 (5:2).
| C/H | δHa | mult (Jb) | δCc | |
|---|---|---|---|---|
| 1 | 172.8 | C | ||
| 2a | 2.66 | dd (16.0, 7.5) | 40.2 | CH2 |
| 2b | 2.51 | dd (16.0, 6.0) | ||
| 3 | 4.63 | m | 78.4 | CH |
| 4a | 2.89 | ddd (12.5, 7.5, 7.5) | 45.9 | CH2 |
| 4b | 1.97 | m | ||
| 5 | 4.28 | m | 81.6 | CH |
| 6a | 2.57 | m | 32.0 | CH2 |
| 6b | 2.48 | m | ||
| 7 | 5.51 | m | 128.1 | CH |
| 8 | 6.63 | dd (11.0, 11.0) | 127.0 | CH |
| 9 | 6.27 | dd (12.0, 11.0) | 125.4 | CH |
| 10 | 6.13 | m | 131.2 | CH |
| 11 | 6.77 | m | 130.3 | CH |
| 12 | 6.75 | m | 130.1 | CH |
| 13 | 6.16 | m | 131.1 | CH |
| 14 | 6.49 | m | 125.8 | CH |
| 15 | 6.52 | m | 125.6 | CH |
| 16 | 6.08 | dd (12.0, 10.0) | 130.9 | CH |
| 17 | 6.73 | dd (15.0, 12.0) | 129.0 | CH |
| 18 | 6.28 | dd (15.0, 12.0) | 136.0 | CH |
| 19 | 6.43 | ddd (15.0, 12.0, 12.0) | 138.1 | CH |
| 20a | 5.23 | d (15.0) | 118.1 | CH2 |
| 20b | 5.10 | d (12.0) |
a
600 MHz.
b
Coupling constants in Hz.
c
150 MHz