Table 2.

¹H (500 MHz) and ¹³C (125 MHz) NMR data of compounds 8 and 9 (δ: ppm) ^a.

Compound 8			Compound 9
No.	δC (type)	δH (mult., J in Hz)	No.	δC (type)	δH (mult., J in Hz)
1	14.0, CH3	1.05 (6.6)	1	14.5, CH3	1.05 (6.8)
2	44.1, CH	1.57, m	2	44.3, CH	1.61, m
3	80.7, C		3	81.4, C
4	40.0, CH2	1.63, m; 1.55, m	4	40.4, CH2	1.68, m; 1.53, m
5	23.8, CH2	1.85, m; 1.60, m	5	24.4, CH2	1.86, m; 1.61, m
6	54.1, CH	1.87, m	6	54.2, CH	1.86, m
7	74.1, C		7	74.5, C
8	40.0, CH2	1.52, t (8.4)	8	43.4, CH2	2.20, m
9	22.0, CH2	2.13, m	9	122.1, CH	5.70, overlapped
10	129.6, CH	5.47, t (7.0)	10	142.3, CH	5.70, overlapped
11	129.9, C		11	70.8, C
12	69.9, CH2	4.45, s	12	29.9, CH3	1.33, s
13	24.7, CH3	1.26, s	13	26.1, CH3	1.25, s
14	23.2, CH3	1.17, s	14	25.2, CH3	1.13, s
15	12.5, CH3	1.67, s	15	29.9, CH3	1.33, s
COCH3	19.4, CH3	2.08, s
C=O	171.5, C

^a 8 and 9 were determined using CDCl₃ and CD₃OD, respectively.