Table 2.
HMVK-NAC Adduct | HMVK-Valinamide Adduct | |
---|---|---|
C-1a | 2.05 (s, 3H)b | 1.00 (d, 3H) |
C-2 | - | 1.06 (d, 3H) |
C-3 | 4.55 (dd, 1H) | 2.22 (m, 1H) |
C-4 | - | 3.80 (d, 1H) |
C-5 | 2.92 (dd, 1H), 3.08 (dd, 1H) | - |
C-6−7 | 2.80 (m, 4H) | 2.96 (t, 2H), 3.32 (m, 2H) |
C-9 | 4.33 (s, 2H) | 4.34 (s, 2H) |
For structural assignments, see the scheme shown in Figure 5
Multiplicities and integration, respectively, are listed in parenthesis