Table 1.

¹H- (600 MHz) and ¹³C- (150 MHz) NMR data of compounds 1–3.

Position		1				2				3
	1H (J, Hz)		13C		1H (J, Hz)		13C		1H (J, Hz)		13C
1α	1.02	m	38.3	t	1.46	m	36.3	t	1.49	m	36.6	t
1β	1.68	m			1.68	m			1.70	m
2	1.64	m (2H)	23.7	t	1.65	m (2H)	23.3	t	1.65	m (2H)	23.3	t
3	4.47	dd (5.3, 11.4)	80.9	d	4.47	dd (4.1, 11.7)	80.6	d	4.47	dd (4.1, 11.7)	80.6	d
4			37.8	s			36.9	s			37.0	s
5	0.81	m	55.3	d	2.20	s	65.1	d	2.20	s	65.2	d
6α	1.54	m	18.2	t			199.8	s			199.4	s
6β	1.41	m
7	1.41	m (2H)	33.79	t	5.84	d (3.0)	123.9	d	5.69	d (3.0)	124.8	d
8			41.0	s			170.3	s			170.8	s
9	1.38	dd (4.2, 12.0)	49.8	d	2.73	ddd (3.0, 6.8, 12.6)	49.7	d	2.72	ddd (3.0, 6.2, 13.2)	50.3	d
10			37.0	s			43.5	s			43.6	s
11	1.51	m	20.55	t	1.74	m	16.3	t	1.72	m	17.6	t
					1.55	m			1.56	m
12	1.44	m	22.9	t	1.70	m	31.6	t	1.78	m	32.7	t
					1.55	m			1.87	m
13	2.48	dd (4.1, 11.8)	33.75	d			37.3	s			43.0	s
14			44.4	s			42.8	s			52.4	s
15α	1.10	m	26.6	t	1.46	m	28.07	t	1.56	m	32.8	t
15β	1.79	td (4.1, 13.5)			1.57	m			1.50	m
16α	1.59	m	31.5	t	1.54	m	37.2	t	1.35	m	27.9	t
16β	1.40	m			1.27	m			1.99	m
17			41.2	s			32.0	s	1.56	m	52.7	d
18			77.0	s	1.33	brs	54.7	d	0.82	s	22.0	q
19			71.9	s	1.17	m	35.4	d	0.88	s	14.3	q
20	1.91	m	29.4	d	1.58	m	31.9	d	1.43	m	35.5	d
21	3.77	d (5.9)	83.2	d	A 1.20	m	29.1	t	0.87	d (6.5)	18.4	q
					B 1.59	m
22	α 1.18	dd (6.4, 13.5)	39.3	t	A 1.19	m	31.2	t	A 1.01	m	35.1	t
22	β 1.32	m			B 1.59	m			B 1.57	m
23	0.85	s	27.9	q	1.20	s	28.11	q	A 1.88	m	25.3	t
									B 2.05	m
24	0.84	s	16.5	q	1.19	s	15.9	q	5.09	tt (1.5, 14.1)	124.8	d
25	0.88	s	16.2	q	0.88	s	14.2	q			131.2	s
26	1.075	s	16.0	q	1.06	s	21.3	q	1.69	s	25.7	q
27	1.05	s	14.7	q	0.96	s	22.7	q	1.61	s	17.7	q
28	1.083	s	23.4	q	1.06	s	37.8	q	1.20	s	16.0	q
29	1.11	d (7.4)	20.63	q	1.07	d (8.0)	25.6	q	1.20	s	28.2	q
30	1.11	d (7.4)	18.4	q	0.92	d (5.9)	22.5	q	1.05	s	24.9	q
21-OMe	3.22	s	56.5	q
1′			171.0	s			171.0	s			171.0	s
2′	2.04	s	21.3	q	2.07	s	21.2	q	2.07	s	21.2	q