Table 1: 1H and 13C NMR data of 1, 2, and 3.

123
No.13C1Hm; J (Hz)13C1Hm; J (Hz)13C1Hm; J (Hz)

1α37.51.79m43.22.09dd; 13.7, 4.643.22.09dd; 13.5, 4.2
β1.43dd; 13.1, 12.01.09dd; 13.7, 11.91.08dd; 13.5, 11.9
2α68.93.84ddd; 12.0, 4.1, 3.472.33.64ddd; 11.9, 9.0, 4.672.33.64ddd; 11.9, 8.8, 4.2
3α68.73.95m75.775.5
β3.34ddd; 11.6, 9.0, 4.43.35m
4α33.01.75m33.81.57td; 13.1, 11.633.81.56td; 13.0, 11.5
β1.70m1.75dt; 13.1, 4.41.76
5β52.02.38dd; 13.0, 4.157.62.09dd; 13.1, 4.457.62.09dd; 13.5, 4.2
6206.6204.8204.8
7122.35.81d; 2.6122.05.82d; 2.8122.15.82d; 2.7
8168.1168.4168.2
9α35.23.15ddd; 10.8, 7.4, 2.536.13.17ddd; 11.0, 7.2, 2.436.13.17ddd; 11.7, 7.4, 2.7
1039.439.839.7
11α21.71.81m21.61.81m21.71.82m
β1.69m1.69qd; 13.1, 4.91.70m
12α32.82.11td; 12.9, 4.732.52.14td; 13.1, 5.032.52.16td; 13.0, 4.5
β1.88ddd; 12.9, 4.7, 1.81.86m1.86m
1348.848.348.5
1485.485.585.3
15α31.91.58m31.91.62ddd; 11.9, 9.6, 2.031.91.61m
β1.98m1.95m1.97dd; 12.7, 6.4
1621.51.67m22.11.86m21.91.82m
2.01m1.90m2.02dtm; 12.6, 10.0
17α51.22.30t; 9.053.52.35t; 9.052.02.37t; 9.2
18β18.30.88s18.30.86s18.30.85s
19β24.50.97s24.00.95s24.00.95s
2077.376.177.2
2122.61.195s26.71.28s20.91.22s
22a90.23.35dd; 10.6, 1.646.01.36m85.73.92dd; 8.4, 6.2
b1.51m
23a30.81.37m21.91.42m28.61.76m
b1.61m1.42m1.90m
24a36.91.25m45.61.43m39.81.75m
b1.51m1.43m1.75m
2529.41.55qui; 6.771.681.9
2622.80.92d; 6.729.31.19s28.51.24s
2723.50.93d; 6.729.31.19s29.11.25s
1′113.04.98d; 3.6
2′77.93.96d; 3.6
3′80.3
4′74.73.79d; 9.6
4.10d; 9.6
5′64.83.55d; 11.5
3.58d; 11.5