Table 2.

¹H NMR spectroscopic data (δ) for compounds 8—14^a (δ in ppm, J in Hz).

No.	8	9	10	11	12	13	14
1	5.16 t (3.0)	5.31 t (3.0)	5.11 t (3.0)	5.23 brd s	4.80 d (3.5)	5.21 t (3.0)	4.47 brd s
2	4.80 d (3.5)	4.90 d (3.5)	4.83 d (3.5)	4.80 d (3.5)	5.17 t (3.0)	4.82 d (3.0)	3.83 d (3.5)
4	2.44 (overlapped)	2.50 m	2.44 m	2.39 (overlapped)	2.42 m		2.29 m
5	2.10 m	2.51 m	2.10 m	2.10 (overlapped)	2.10 (overlapped)	1.61 d (12.0)	2.17 d (12.0)
6a	1.78 m	2.51 m	2.50 m	5.30 dd (12.0, 3.0)	4.08 d (3.0)	4.25 dd (11.5, 3.0)	5.29 dd (12.0, 2.0)
6b		2.37 m	1.60 m
7	3.95 s	5.27 d (3.5)	5.20 d (3.5)	4.07 d (3.0)	5.31 dd (12.0, 3.0)	5.29 d (3.0)	4.09 d (3.0)
9	2.12 (overlapped)	2.18 m	2.10 m	2.23 d (5.5)		2.10 d (6.5)	2.10 d (6.5)
11	5.14 td (8.5, 6.0)	4.52 dt (7.5, 7.0)	4.46 td (7.5, 7.0)	4.47 td ( 8.5. 6.0)	2.23 d ( 6.5)	4.46 td (8.5, 6.0)	4.57 td (8.5, 6.0)
12a	2.86 dd (12.5, 6.5)	2.33 m	2.28 dd (12.5, 8.5)	2.29 dd (13.0, 9.0)	2.28 dd (13.0, 9.0)	2.31 (overlapped)	2.41 m
12b	1.37 dd (14.0, 5.5)	1.72 m	1.65 m	1.64 dd (13.0, 9.0)	1.69 (overlapped)	1.62 (overlapped)	1.65 dd (13.0,9.0)
15	5.63 brd (3.5)	5.50 brd s	5.45 brd s	5.59 t (2.5)	5.60 t (3.0)	5.49 brd s	5.59 brd d (3.0)
16a	2.60 dd (15.5 11.0)	2.22 dd (12.5, 2.5)	2.35 ddd (15.0, 7.0, 3.5)	2.58 ddd (16.0,11.0, 2.0)	2.59 ddd (16.0,11.0, 2.0)	2.36 dd (16.0, 12.0)	2.57 ddd (15.0,11.0, 2.0)
16b	2.38 (overlapped)	1.73 m	1.63 m	2.40 (overlapped)	2.45 (overlapped)	2.31 (overlapped)	2.44 (overlapped)
17	2.92 dd (11.0, 7.0)	2.93 dd (11.0, 7.5)	2.88 dd (11.0, 7.5)	2.91 dd (11.0, 7.0)	2.92 dd (11.0, 7.0)	2.85 dd (11.0, 7.0)	2.91 dd (11.0 7.0)
18	0.76 s	0.79 s	0.74 s	0.76 s	0.76 s	0.74 s	0.72 s
19a	2.01 (overlapped)	2.22 m	2.10 m	2.17 d (12.5)	2.17 d (12.5)	2.18 d (12.5)	2.01 d (12.5)
19b	1.81 (overlapped)	1.73 m	1.64 m	2.12 (overlapped)	2.12 d (12.5)	2.05 d (12.5)	1.94 d (12.5)
21	7.26, s	7.29 s	7.25 s	7.25 s	7.26 s	7.25 s	7.25 s
22	6.27, s	6.33 s	6.27 s	6.28 s	6.27 s	6.38 s	6.28 s
23	7.39, s	7.43 s	7.38 s	7.38 s	7.39 s	7.38 s	7.37 s
28	0.83 d (7.0)	0.94 d (7.0)	0.93 d (7.0)	1.08 d (7.0)	1.09 d (7.0)	1.12 d (7.0)	1.13 d (7.0)
29	0.95 d (7.0)	0.88 d (7.0)	0.82 d (7.0)	0.82 d (7.0)	0.83 d (7.0)	1.00 d (7.0)	0.82 d (7.0)
30	1.36 s	1.44 s	1.39 s	1.42 s	1.42 s	1.40 s	1.44 s
2′	2.52 (overlapped)		1.60 m		2.50 m
3′	1.70 (m)	7.01 m	2.50 m	6.96 m	1.67 m	6.96 m
	1.50 (m)		1.60 m		1.51 m
4′	0.92 t (7.0)	1.89 s	0.93 t (7.0)	1.83 s	0.92 t (7.0)	1.83 s
5′	1.17 d (7.0)	1.88 d (6.0)	1.19 d (7.0)	1.80 d (6.0)	1.18 d (7.0)	1.82 d (6.0)
7-OAc	2.10 s	2.18 s		2.12 s (6-OAc)	2.13 s (6-OAc)	2.16 s	2.15 s
11-OAc		2.02 s		2,12 s	2,13 s	2.04 s	2.13 s
OH		5.94 s	5.54 s			5.91 s

^aNMR data (δ) were measured at 500 MHz in CDCl₃ for 8–14.