Table 2.

¹H and ¹³C-NMR (400 and 100 MHz, respectively) for compounds 6 and 7. Experiments with compound 6 were done in CD₃OD and with compound 7 in CDCl₃.

Position	Compound 6		Compound 7
	δC, Type	δH, mult (J in Hz)	δC, Type	δH, mult (J in Hz)
1	149.5, C		146.7, C
2	118.9, CH	6.63, s	116.9, CH	6.70, s
3	124.5, C		125.1, C
4	146.7, C		148.1, C
5	114.2, CH	6.48, s	110.3, CH	6.62, s
6	126.0, C		132.1, C
7	82.4, C		122.0, C
8	39.8, CH2	1.84, m	118.7, C	5.36, dd (3.8, 1.5)
9	22.8, CH2	α 2.00, m β 1.89, m	75.6, CH	4.51, ddt (8.3, 3.9, 1.5)
10	123.9, CH	5.04, t (6.6, 6.5)	63.8, CH	3.06, d (8.3)
11	132.0, C		57.7, C
12	17.7, CH3	1.51, m	25.1, CH3	1.33, s
13	25.8, CH3	1.65, s	19.4, CH3	1.35, s
14	15.6, CH3	2.18, s	15.9, CH3	2.19, s
15	22.4, CH3	1.55, s	18.3, CH3	2.01, t (1.5)
16	50.5, OCH3	3.21, s
OH-1		8.28, br s
OH-4		8.28, br s		3.49, br s