Table 1.

¹H (600 MHz) and ¹³C (150 MHz) NMR Data for 1 and 2 (DMSO-d₆).

Position	1		2
	δH, mult. (J in Hz)	δC, type	δH, mult. (J in Hz)	δC, type
1	10.56, s		10.55, s
2		151.3, C		151.0, C
3		52.6, C		52.5, C
4		38.6, C		38.5, C
5	1.86, m	32.1, CH2	1.89, m	31.6, CH2
	1.70, m		1.69, m
6	1.70, m	27.2, CH2	1.69, m	23.5, CH2
	1.64, t (12.6)
7	3.34, m	71.4, CH	4.56, m	75.4, CH
8		48.6, C		39.9, C
9	1.64, t (12.6)	40.8, CH	1.66, m	40.1, CH
10	1.53, m	22.3, CH2	1.50, m	22.0, CH2
	1.35, dt (12.6, 12.0)		1.33, m
11	1.69, m	25.0, CH2	1.69, m	24.9, CH2
	1.53, m		1.50, m
12	2.63, m	48.5, CH	2.60, m	48.5, CH
13	2.56, dd (12.6, 6.0)	27.1, CH2	2.51, dd (12.6, 6.6)	27.0, CH2
	2.24, dd (12.6, 11.2)		2.20, dd (12.6, 11.2)
14		115.8, C		115.9, C
15		124.4, C		124.4, C
16	7.27, d (7.8)	117.5, CH	7.21, d (7.8)	117.6, CH
17	6.89, dd (7.8, 7.2)	118.3, CH	6.84, dd (7.8, 7.2)	118.4, CH
18	6.94, dd (7.8, 7.2)	119.2, CH	6.88, dd (7.8, 7.2)	119.3, CH
19	7.27, d (7.8)	111.8, CH	7.21, d (7.8)	111.8, CH
20		140.2, C		140.2, C
21	0.94, s	14.7, CH3	0.91, s	14.6, CH3
22	1.02, s	18.6, CH3	1.00, s	18.6, CH3
23	0.75, s	17.1, CH3	0.83, s	17.5, CH3
24	1.85, m	34.8, CH2	1.50, m	35.2, CH2
	1.06, m		1.08, m
25	1.44, t (11.8)	23.6, CH2	1.67, m	23.8, CH2
	1.15, m		1.36, m
26	3.00, t (7.2)	78.6, CH	2.90, m	78.0, CH
27		71.7, C		71.6, C
28	1.03, s	24.6, CH3	0.94, s	24.6, CH3
29	1.08, s	26.4, CH3	0.99, s	26.4, CH3
-OAc			1.94, s	21.0, CH3
				169.9, C
7-OH	4.26, s
26-OH	4.21, s		4.12, s
27-OH	4.10, s		4.04, s