Table 2.
1H Signal | 2A (exo) | 2B (endo) |
---|---|---|
NH | 6.42 (m, 1H) | 6.18 (d, 1H, J=6.8 Hz) |
Hα | 4.12 (m, 1H, J=5.6, 8.8 Hz) | 3.63 (dd, 1H, J=6.0, 8.0 Hz) |
Hβ | 2.79 (dd, 1H, J=5.6,16.4 Hz) | 2.70 (d, 2H, J=6.0 Hz) |
2.55 (dd, 1H, J=8.8,16.4 Hz) | 2.70 (d, 2H, J=8.0 Hz) | |
exo-HCOORD; | 3.58 (m, 2H) | 3.93 (dd, 1H, J=6.8, 17.2 Hz) |
endo-HCOORD | 3.67 (d, 1H, J=17.2 Hz) |