Table 3 1 H in Nor-hopanes from Zanha africana root bark with toxicity to bruchid beetles

Table 3 1 H NMR spectroscopic data (δ 1 H, J in Hz) for 5–7 in ‡ CDCl 3 or MeOD. Atom56 CDCl36 MeOD711.82 m, 1.16 m2.90 dt (13.8, 4.0), 1.20 m2.90 dt (13.6, 3.6), 1.22 m3.18 ddd (13.6, 6.3, 3.9), 1.58 m21.89 m, 1.50 m1.94 m, 1.50 m1.82 m, 1.48 m2.45 m (2H)33.94 dd (11.7, 5.5)3.98 dd (11.6, 5.5)3.92 dd (11.8, 5.5)51.77 m1.84 br s1.80 m2.45 m64.37 dd (3.6, 2.0)4.36 d (3.6, 2.0)4.30 d (3.5, 2.0)4.40 dd (3.6, 2.3)75.17 d (3.6)5.27 d (3.6)5.13 d (3.5)5.21 d (3.6)91.60 m1.69 m1.72 m1.83 d (10.7)111.78 m, 1.56 m4.25 dt (10.8, 4.8)4.14 dt (10.5, 4.4)4.19 m121.47 m (2H)1.77 m, 1.50 m1.73 m, 1.57 m1.75 m, 1.61 m131.58 m1.67 m1.69 m1.71 m151.50 m, 1.22 m1.36 m, 1.16 m1.43 m, 1.18 m1.46 m, 1.23 m162.08 m, 1.85 m2.09 m, 1.84 m2.09 m, 1.87 m2.10 m, 1.88 m191.70 m, 1.35 m1.69 m, 1.32 m1.72 m, 1.39 m1.73 m, 1.40 m202.20 m, 2.13 m2.20 m, 2.12 m2.21 m, 2.16 m2.23 m, 2.17 m222.58 m2.54 septet (6.9)2.57 m2.58 septet (6.9)235.34 m, 5.19 m5.40 m, 5.22 m5.39 m, 5.20 m6.07 dd (2.5, 1.6), 5.53 dd (2.5, 1.7)25-Me1.05 s1.28 s1.25 s1.32 s26-Me1.60 s1.59 s1.62 s1.64 s27-Me1.18 s1.19 s1.19 s1.21 s28-Me0.86 s0.84 s0.89 s0.89 s29-Me0.97 d (6.8)0.95 d (6.9)0.97 d (6.8)0.97 d (6.8)30-Me0.88 d (6.8)0.87 d (6.9)0.88 d (6.8)0.88 d (6.8)7- O -(4-OHBz)2,67.94 d (8.8)7.96 d (8.9)7.92 d (8.8)7.94 d (8.8)3,56.85 d (8.8)6.89 d (8.9)6.85 d (8.8)6.86 d (8.8)