No δH (J in Hz) δC δH (J in Hz) δC δH (J in Hz) δC
1.22,m 38.05 0.99,m 39.56 4.22, dd, 11.1, 5.0 69.87
1.88,m - 1.82,m - - -
1.96,m 35.67 1.62,m 20.12 1.99,m 21.62
2.04,m - 1.75,m - 1.68,m -
4.68, dd, 11.5, 5.0 76.32 1.45,m 32.67 1.36,m 39.51
- - 1.88,m - 1.27,m -
4 - 53.1 - 42.18 - -
5 2.21, brd, 12.3 53.76 1.50, d, 11.5 60.01 1.60,m 60.31
1.60,m 20.31 4.21, t, 11.5 76.11 4.22, t, 11.5 76.18
1.87,m - - - - -
2.92,m 30.42 - 69.98 2.06.m 34.56
2.80,m - 4.15, t, 3.0 - 2.67,m -
8 - 131.56 2.56,m 38.17 1.58,m 38.32
9 - 142.73 1.22,m 37.19 1.26,m 36.93
10 - 38.67 - 35.98 - 36.1
11α 7.29, d, 8.5 127.92 1.90,m 20.32 1.94,m 19.03
11β - - 1.70,m - 1.68,m -
12α 7.17, d, 8.5 126.12 1.78,m 36.71 1.74,m 35.78
12β - - 1.50,m - 1.59,m -
13 - 144.21 - 36.23 - 35.63
14α 6.85,s 129.48 1.68, bd, 13.5 39.19 1.70, bd, 13.5 40.11
14β - - 1.59, d, 13.5 - 1.60, d, 13.5 -
15 3.05, sept, 7.0 34.52 5.90, dd, 10.6, 17.8 146.12 5.91, dd, 10.6, 17.8 146.24
16 0.87, d, 7.0 28.03 4.78, cis: dd, 5.11, d, 10.6 4.92, trans: 5.15, d, 17.8 112.43 4.77, cis: dd, 5.11, d, 10.6 4.92, trans: 5.15, d, 17.8 111.56
17 0.87, d, 7.0 28.03 0.83,s 24.12 0.88,s 26.43
18 1.29,s 23.59 - 179.74 - 177.9
19 4.07, d,11.6 3.56, d, 11.5 68.32 1.21,s 16.73 0.93,s 17.32
20 1.25,s 25.48 0.86,s 18.76 0.90,s 18.75
CH3CO 2.12,s 21.32 2.16,s 22.01 2.09,s 21.98
CH3CO - 167.45 - 170.33 - 172.43
Table 1: 1H-NMR (400 MHz) and 13C-NMR (100 MHz) data for compounds 1-3 (δ in ppm).