TABLE 3.

¹H and ¹³C NMR data of compounds 7–9.

No.	7a		8a		9a
	δC, type	δH (J in Hz)	δC, type	δH (J in Hz)	δC, type	δH (J in Hz)
2	177.3, C		177.3, C		177.3, C
3	80.8, C		80.9, C		80.8, C
4	77.9, CH	4.12, d (6.5)	77.9, CH	4.12, d (6.6)	78.0, CH	4.12, d (6.6)
5	61.2, CH	3.38, ddd (6.5, 5.8, 3.2)	61.1, CH	3.39, ddd (6.6, 5.8, 3.2)	61.2, CH	3.38, ddd (6.6, 5.8, 3.3)
6	62.9, CH2	3.76, dd (11.5, 3.2) 3.52, dd (11.5, 5.8)	62.9, CH2	3.76, dd (11.6, 3.2) 3.52, dd (11.6, 5.8)	63.0, CH2	3.76, dd (11.5, 3.3) 3.52, dd (11.5, 5.8)
7	74.5, CH	4.43, d (7.1)	74.5, CH	4.44, d (7.1)	74.6, CH	4.43, d (7.0)
8	129.6, CH	5.83, dd (15.3, 7.1)	129.5, CH	5.82, dd (15.3, 7.1)	129.7, CH	5.82, dd (15.4, 7.0)
9	134.6, CH	6.32, dd (15.3, 10.5)	134.6, CH	6.32, dd (15.3, 10.5)	134.6, CH	6.32, dd (15.4, 10.6)
10	131.2, CH	6.07, dd (15.1, 10.5)	131.2, CH	6.07, dd (15.0, 10.5)	131.2, CH	6.07, dd (15.0, 10.6)
11	136.3, CH	5.70, dt (15.1, 7.3)	136.3, CH	5.70, dt (15.0, 7.3)	136.3, CH	5.70, dt (15.0, 7.3)
12	33.6, CH2	2.08, q (7.3)	33.6, CH2	2.08, q (7.3)	33.7, CH2	2.08, q (7.3)
13	30.4, CH2	1.39, m	30.3, CH2	1.39, m	30.3, CH2	1.39, m
14	30.5, CH2	1.31, m	30.4, CH2	1.32, m	30.5, CH2	1.31, m
15	30.5, CH2	1.31, m	30.3, CH2	1.32, m	30.4, CH2	1.31, m
16	30.2, CH2	1.31, m	30.2, CH2	1.32, m	30.2, CH2	1.31, m
17	26.5, CH2	1.31, m	30.1, CH2	1.32, m	30.1, CH2	1.31, m
18	36.9, CH2	1.58, m 1.50, m	26.2, CH2	1.59, m	26.0, CH2	1.60, m
19	72.4, CH	4.86, m	35.2, CH2	2.27, t (7.4)	34.8, CH2	2.31, t (7.4)
20	20.2, CH3	1.20, d (6.2)	178.1, C		176.1, C
19-OAc	21.2, CH3 172.7, C	2.00, s
20-OMe					52.0, CH3	3.65, s

^aRecorded at 600 (¹H) and 150 MHz (¹³C) in CD₃OD.