Table 2 Comparison of chemical shift and coupling constant values of MOM-protected munduserol [43], elliptinol [38, 39], 6a, 12a-cis-12, 12a-cis-12-acetoxy-6,6a,12,12a-tetrahydrorotoxen [44], compound (1) and (2)
Position | MOM-protected munduserol [43] (J in Hz) | Elliptinol [38] (J in Hz) | Elliptinol [39] (J in Hz) | 6a, 12a-cis-12, 12a-cis-12-acetoxy-6,6a,12,12a-Tetrahydrorotoxen [44] (J in Hz) | Compound (1) (J in Hz) | Compound (2) (J in Hz) |
|---|---|---|---|---|---|---|
6a | 4.84, d, (3.3) | 5.00, br.ddd | 4.94, m | 4.92, dd, (5.1, 5.2 Hz) | 4.33, dt (10.2, 4.3) | 4.16, td, (4.3, 10.0) |
12a | 3.96, s | 3.65, br.dd | 3.48 t, (4.8) | 3.65, dd, (5.1, 5.3) | 3.15, t (10.2) | 3.04, t, 10.0) |
12 | 5.05, s | 6.44, br.d | 5.04, d, (4.8) | 6.38, d, (5.3) | 4.98, t (10.2) | 4.74, d, (10.0) |