Table 1.
1H, 13C, 1H–1H COSY, and HMBC NMR data of 1.
| Position | δH (J in Hz) a | δC (Mult.) b | 1H–1H COSY | HMBC |
|---|---|---|---|---|
| 1 | 2.26 m | 39.0 (CH) | H-2, H-14 | |
| 2 | 5.06 dd (10.0, 4.5) | 79.4 (CH) | H-1, H-3 | C-16 |
| 3 | 5.17 d (10.0) | 122.7 (CH) | C-5 | |
| 4 | 142.5 (C) | |||
| 5 | 2.22 m | 38.4 (CH2) | ||
| 6 | 2.21 m; 2.30 m | 24.1 (CH2) | H-7 | |
| 7 | 4.89 t (5.0) | 125.1 (CH) | H-6 | C-5, C-9 |
| 8 | 133.8 (C) | |||
| 9 | 1.99 m; 2.12 m | 39.0 (CH2) | ||
| 10 | 2.07 m; 2.20 m | 23.9 (CH2) | H-11 | |
| 11 | 4.93 t (5.0) | 125.2 (CH) | H-10 | C-9, C-13 |
| 12 | 131.4 (C) | |||
| 13 | 2.03 m | 35.1 (CH2) | H-14 | |
| 14 | 1.55 m; 1.77 m | 24.2 (CH2) | H-13, H-1 | C-2, C-15 |
| 15 | 57.9 (C) | |||
| 16 | 173.8 (C) | |||
| 17 | 2.96 d (6.0); 3.30 d (6.0) | 52.2 (CH2) | C-1, C-15, C-16 | |
| 18 | 1.74 s | 16.4 (CH3) | C-3, C-4, C-5 | |
| 19 | 1.59 s | 15.2 (CH3) | C-7, C-8, C-9 | |
| 20 | 1.52 s | 15.9 (CH3) | C-11, C-12, C-13 |
Spectra recorded at a 500 and b 125 MHz in CDCl3.