¹H (600 MHz) and ¹³C NMR (150 MHz) data of compounds 9 and 10 in DMSO-d₆.

No.	9		10
	δ C	δ H (J in Hz)	δ C	δ H (J in Hz)
2	165.5, C		168.4, C
3	113.1, CH	6.10 (1H, s)	112.5, CH	6.09, s
4	177.5, C		177.6, C
4a	122.2, C		122.4, C
5	60.0, CH	4.73, dd, (4.2, 4.2, 3.6)	60.0, CH	4.74, ddd, (4.2, 3.6, 3.6)
6	39.2, CH2	1.89, ddd, (12.6, 3.6, 3.6)	39.4, CH2	1.89, ddd, (12.6, 3.6, 3.6)
		1.52, ddd, (12.6, 10.8, 4.2)		1.53, ddd, (12.6, 10.8, 3.6)
7	61.1, CH	4.14, (m)	61.1, CH	4.13, m
8	36.3, CH2	2.80, dd, (17.4, 5.4)	36.3, CH2	2.80, dd, (17.4, 6.0)
		2.38, ddd, (17.4, 9.0)		2.39, dd, (17.4, 9.0)
8a	162.6, C		162.7, C
9	19.2, CH3	2.22, s	34.4, CH2	2.46, t, (7.2)
10			19.7, CH2	1.60, m
11			13.2, CH3	0.91, t, (7.2)
5-OH		4.84, d, (4.2)		4.84, d, (4.2)
7-OH		5.03, d, (4.2)		5.02, d, (4.8)