TABLE 2.

¹H (500 MHz) and ¹³C NMR (125 MHz) data for 2 and 3.

	2 (in CDCl3)		3 (in DMSO-d6)
position	δC, type	δH, (J in Hz)	δC, type	δH, (J in Hz)
1	46.4, C		15.1, CH3	0.88, d (6.7)
2	41.1, CH	1.94-1.98, m	43.7, CH	1.41–1.51, m
3	216.7, C		79.1, C
4a	46.5, CH2	2.74, d (18.5)	40.5, CH2	1.41–1.51, m
4b		2.32-2.34, m		1.31–1.38, m
5a	46.2, CH	3.12, q (8.0)	23.9, CH2	1.57–1.67, m
5b				1.41–1.51, m
6	51.0, C		53.7, CH	1.57–1.67, m
7	29.8, CH2	1.27-1.32, m	72.9, C
8a	24.2, CH2	2.26-2.28, m	41.6, CH2	1.21–1.30, m
8b		2.05-2.09, m
9	153.0, C		18.5, CH2	1.21–1.30, m
10a	149.0, C		44.6, CH2	2.00–2.05, m
10b				1.21–1.30, m
11	199.3, C		68.8, C
12a	59.1, CH2	2.58, d (17.0)	29.5, CH3	1.12, s
12b		2.48, d (17.0)
13	39.4, C		26.3, CH3	1.08, s
14	53.0, CH	2.29, m	25.0, CH3	0.96, s
15a	29.7, CH2	2.09-2.13, m	29.2, CH3	1.04, s
15b		1.94-1.98, m
16a	25.0, CH3	1.01, s
17	22.2, CH3	1.13, s
18	17.2, CH3	1.24, d (8.0)
19	22.0, CH3	1.39, s
20a	67.1, CH2	4.38, d (18.0)
20b		4.25, dd (18.0, 6.6)
3-OH				3.76, s
7-OH				3.74, s
11-OH				4.03, s
20-OH		4.53, s