Table 1.

NMR Spectroscopic Data^a for Compounds 1–3 (600 MHz for ¹H, 150 MHz for ¹³C, CDCl₃, δ ppm).

No.	1		2		3
	δ H	δ C	δ H	δ C	δ H	δ C
1	α 1.98 d (13.8) β 2.31 dd (4.8, 15.6)	33.2 t	β 1.99 dd (4.2, 15.0) α 2.98 dd (2.4, 15.0)	31.0 t	β 1.56 dd (4.2, 15.6) α 2.50 dd (1.8, 15.6)	28.8 t
2	5.59 m	67.3 d	5.35 m	68.7 d	5.29 m	71.2 d
3	5.18 d (4.8)	74.3 d	4.93 d (4.8)	74.0 d	3.67 d (5.4)	74.7 d
4	—	47.6 s	—	42.6 s	—	43.0 s
5	1.95 br.s	54.9 d	1.78 br.s	61.6 d	1.68 br.s	61.6 d
6	3.77 br.s	61.1 d	3.13 br.s	62.7 d	—	97.0 s
7	α 1.88 br.d (13.8) β 2.28 br.d (13.8)	33.5 t	β 1.39 dd (1.8,13.8) α 1.87dd (3.0,10.2)	31.8 t	β 1.81 d (12.6) α 1.85 d (13.2)	41.0 t
8	—	44.4 s	—	44.3 s	—	46.7 s
9	2.43 br.s	59.1 d	—	80.2 s	2.43 m	47.1 d
10	—	47.1 s	—	46.3 s	—	48.1 s
11	9.84 br.s	201.0 d	4.10 br.s	80.3 d	4.13 br.d (9.6)	70.2 d
12	5.93 s	124.6 d		52.7 d	2.17 m	42.9 d
13	—	196.1 s	4.26 d (8.4)	76.0 d	β 1.39 m α 2.06 dd (4.2, 9.6)	21.6 t
14	2.56 br.s	58.5 d	1.99 d (9.6)	53.3 d	1.72m	48.0 d
15	β2.47 d (19.8) α 2.76 d (19.8)	36.3 t	α 2.99 dd (2.4, 16.2) β 2.00 overlapped	31.2 t	5.54 br.s	70.6 d
16	—	158.5s	—	144.3s	—	148.5s
17	1.97 s	24.6 q	4.90 br.s 4.72 br.s	108.7 t	4.87 d (1.8) 4.98 d (1.8)	111.2 t
18	1.10s	18.8 q	1.04s	25.8 q	1.54s	27.1 q
19	5.20s	88.4 d	α 2.50 d (12.6) β 3.37 d (12.6)	59.9 t	α 3.00 d (12.0) β 3.16 d (12.0)	57.8 t
20	4.36 br.s	63.9 d	3.71 br.s	68.9 d	3.72 br.s	66.8 d
AcO–2				AcO–2
	—	169.8 s	—	170.2 s	—	177.3 s
	2.29 s	21.6 q	2.02 s	20.9 q	2.44 m	41.9 d
BzO–3			AcO–3		1.73 m	26.8 t
1′	—	129.8s	—	170.6 s	0.91 t (7.2)	11.9 q
2′, 6′	7.89 d (7.8)	129.7 d	2.09 s	21.5 q	1.20 d (7.2)	16.8 q
3′, 5′	7.32 t (7.8)	128.4 d			MbO–15
4′	7.51 t (7.8)	133.2 d			—	176.8 s
C = O	—	165.5 s			2.40 m	41.6 d
					1.50 m	26.7 t
					0.93 t (7.2)	11.8 q
					1.16 d (7.2)	17.0 q

^aData are based on DEPT, HMQC, and HMBC experiments.