Table 1.

¹H (400 MHz) and ¹³C (100 MHz) NMR data for 1–4 in CDCl₃

No.	1		2		3		4
	δ C	δH (J in Hz)	δ C	δH (J in Hz)	δ C	δH (J in Hz)	δ C	δH (J in Hz)
1	53.3 d	1.49 m	51.3 d	2.25 m	51.5 d	2.23 m	135.5 d	5.14 dd (11.4, 4.0)
2	74.1 d	4.83 t (8.0)	75.1 d	5.20 t (3.9)	75.2 d	5.23 t (3.6)	25.9 t	2.25 m; 2.25 m
3	38.6 t	1.89 m; 1.70 m	48.1 t	1.95 m; 1.88 m	48.0 t	1.92 m; 1.90 m	39.6 t	2.35 m; 2.15 m
4	80.6 d	3.49 t (8.7)	78.7 s		78.8 s		143.3 s
5	44.9 s		51.9 d	1.72 m	52.0 d	1.70 m	128.0 d	4.86 d (9.3)
6	37.0 t	1.41 dd (14.8, 5.1); 1.10 m	28.1 t	1.88 m; 1.17 m	28.5 t	1.85 m; 1.12 m	72.9 d	5.08 dd (9.3, 7.3)
7	48.4 d	2.85 m	50.9 d	2.40 t (10.0)	50.0 d	2.47 t (10.5)	51.5 d	2.65 m
8	83.0 d	4.28 m	80.1 d	4.43 dd (10.0, 2.0)	83.7 d	4.56 dd (10.5, 2.0)	68.9 d	4.63 d (2.9)
9	44.8 t	2.39 m; 1.27 m	128.0 d	5.79 d (2.0)	127.1 d	5.83 d (2.0)	45.8 t	2.83 m; 2.42 dd (14.1, 1.7)
10	28.6 d	1.89 m	135.3 s		136.2 s		134.3 s
11	58.1 s		55.9 s		57.9 s		55.9 s
12	184.8 s		176.5 s		184.7 s		182.4 s
13	33.1 t	2.22 dd (12.6, 3.3); 2.04 m	31.1 t	2.18 m; 2.00 m	32.5 t	2.22 m; 2.00 m	34.7 t	2.35 m; 1.72 m
14	19.6 q	0.94 d (6.6)	22.6 q	1.76 s	22.6 q	1.79 s	60.6 t	4.25 d (11.5); 3.87 d (11.5)
15	18.8 q	0.84 s	25.1 q	1.10 s	25.1 q	1.10 s	17.5 q	1.68 d (0.8)
1′	69.5 s		67.8 s		69.3 s		72.3 s
2′	85.6 d	3.42 d (9.8)	82.4 d	4.54 s	85.5 d	3.45 d (9.1)	83.6 d	4.47 s
3′	52.6 d	2.62 br s	48.1 d	2.69 s	52.2 d	2.62 br s	48.9 d	2.73 m
4′	140.1 s		138.7 s		139.7 s		139.3 s
5′	133.9 s		134.8 s		134.4 s		132.8 s
6′	25.5 t	2.85 m; 2.22 dd (12.6, 3.3)	25.7 t	3.03 dd (16.4, 1.8); 2.18 m	25.8 t	2.96 br d (16.6); 2.15 m	26.2 t	3.04 dd (16.2, 2.6); 1.95 m
7′	45.1 d	2.85 m	44.6 d	2.64 m	44.5 d	2.64 m	45.5 d	2.60 m
8′	81.0 d	4.28 m	81.6 d	4.26 ddd (13.4, 12.1, 3.3)	81.5 d	4.27 ddd (13.0, 12.0, 3.4)	81.0 d	4.06 ddd (12.0, 9.0, 2.6)
9′	36.7 t	2.39 m; 2.04 m	35.6 t	2.30 m; 2.00 m	36.3 t	2.35 m; 2.05 m	35.4 t	2.20 m; 1.90 m
10′	26.7 d	2.85 m	25.2 d	3.21 m	26.4 d	2.87 m	26.1 d	2.58 m
11′	139.7 s		139.2 s		139.4 s		140.1 s
12′	169.4 s		169.9 s		169.8 s		170.2 s
13′	118.9 t	6.25 d (3.1); 5.60 d (2.8)	119.7 t	6.20 d (3.2); 5.55 d (2.9)	119.6 t	6.21 d (3.3); 5.55 d (3.0)	118.4 t	6.11 d (3.3); 5.44 d (3.1)
14′	18.9 q	1.21 d (7.1)	18.7 q	1.07 d (7.2)	18.9 q	1.20 d (7.2)	18.6 q	1.05 d (8.3)
15′	13.7 q	1.76 s	13.7 q	1.81 d (1.5)	13.7 q	1.78 s	13.5 q	1.83 d (1.6)
2-OAc	170.7 s		170.4 s		170.3 s
	21.1 q	2.01 s	21.5 q	2.04 s	21.5 q	2.04 s
2′-OH		6.34 d (9.8)				6.18 d (9.3)
2′-OAc			170.6 s				169.5 s
			21.2 q	2.09 s			21.3 q	2.06 s