Table 3.
1H NMR data [δH (mult, JH)] for compound 2a
| position | 2 | position | 2 |
|---|---|---|---|
| 2 | 2.79 (br m) | 12minor | 5.91 (s) |
| 3 | 5.29 (dt, 10, 2.0) | 16 | 0.76 (d, 7.4) |
| 4 | 5.57 (dt, 10, 3.4) | 17major | 8.27 (d, 13) |
| 5 | 2.39 (br m) | 17minor | 8.42 (d, 15) |
| 6eq | 1.72 (m) | 18 | 0.98 (d, 7.4) |
| 6ax | 1.23 (m) | 19 | 1.04 (s) |
| 7eq | 1.50 (m) | 20major | 3.60 (q, 5.3) |
| 7ax | 1.50 (m) | 20minor | 3.66 (q, 5.3) |
| 8eq | 1.34 (br d, 12) | 21 | 3.86 (br t, 5.3) |
| 8ax | 1.50 (m) | NHmajor | 11.88 (br s) |
| 9 | 1.51 (m) | NHminor | 10.16 (br s) |
| 10 | 2.21 (br d, 7.2) | OHmajor | 2.00 (br s) |
| 12major | 5.86 (s) | OHminor | 2.03 (br s) |
a
CDCl3, 300 MHz. 1H NMR signals for the major and minor forms were not clearly resolved for the modified decalin portion of the molecule or for H2-21, but some of the corresponding signals did appear to be broadened.