Table 2.

NMR Spectroscopic Data^a for Compounds 4–6 (600 MHz for ¹H, 150 MHz for ¹³C, CDCl_3, δ ppm).

No.	4		5		6
	δ H	δ C	δ H	δ C	δ H	δ C
1	3.85 t (5.4)	84.3 d	3.57 t (8.4)	78.1 d	3.63 m	77.2 d
2	2.27 m	26.1 t	2.40 m	26.6 t	2.18 m	26.0 t
3	1.73 m	32.4 t	α 1.40 m β 1.73 m	32.2 t	α 1.40 m β 1.77 m	31.7 t
4	—	38.6 s	—	38.1 s	—	38.3 s
5	2.02 m	46.0 d	1.80 m	39.2 d	1.83 m	45.9 d
6	1.40 m	31.7 t	α 2.11 m β 1.50 m	32.8 d	5.52 s	78.3 d
7	—	91.6 s	—	90.6 s	—	93.2 s
8	—	88.0 s	—	82.7 s	—	83.2 s
9	2.44 m	52.1 d	2.42 d (4.8)	53.4 d	3.37 m	52.3 d
10	1.55 d (7.8)	44.2 d	—	79.8 s	—	79.8 s
11	—	51.2 s	—	55.8 s	—	55.0 s
12	α 2.01 m β 2.23 m	24.9 t	α 1.81 m β 2.85 m	38.5 t	α 1.79 m β 2.50 m	33.0 t
13	2.66 m	45.6 d	2.76 m	36.2 d	2.60 m	36.6 d
14	—	213.7s	5.26 t (5.4)	74.7 d	4.64 m	72.9 d
15	α 2.09 m β 1.42 m	31.5 t	α 2.55 dd (9.6,16.2) β 1.74 m	34.4 t	α 2.45 m	37.4 t
16	3.15 dd (6.6, 10.8)	84.8 d	3.20 q (5.4, 9.6)	81.2 d	3.47 t (8.8)	81.3 d
17	3.59 brs	63.5 d	2.98 brs	65.1 d	3.34 m	64.9 d
18	3.01 d (9.0) 3.08 d (9.0)	78.9 t	3.00 d (9.0) 3.13 d (9.0)	79.1 t	3.05 d (9.2) 3.18 d (9.2)	78.3 t
19	2.45 m 2.63 m	52.7 t	2.45 m 2.65 d (11.4)	52.6 t	2.42 m 2.78 m	53.4 t
21	2.46 m 2.85 dd (7.2, 12.6)	51.0 t	2.70 dd(7.2, 12.6) 2.81 dd(7.2, 12.6)	50.7 t	2.83 m	50.6 t
22	1.09 t (7.2)	14.3 q	1.07 t (7.2)	14.1 q	1.07 t (7.2)	14.1 q
1–OCH3	3.29 s	56.1 q	3.27 s	55.8 q	3.25 s	55.7 q
16–OCH3	3.31 s	56.2 q	3.28 s	56.3 q	3.26 s	56.5 q
18–OCH3	3.34 s	59.6 q	3.29 s	59.6	3.35 s	59.5 q
O–CH2–O	4.95 s, 5.04 s	94.1 t	4.95 s, 5.01 s	93.8 t	4.96 s, 4.98 s	94.3 t
14– OAc			—	171.9s	—	170.2 s
			2.07 s	21.5 q	2.10 s	21.8 q

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