Table 5. ¹H, ¹³C, and ¹³C DEPT NMR Data of Compounds 6 and 9^a.

	6		9
position	δH	δC, type	δH	δC, type
1	4.93 br d (2.5)	71.2, CH	4.17 br d (4.5)	80.2, CH
2a	3.59 br d (16.0)	34.6, CH2	3.01 dd (17.0, 3.6)	35.5, CH2
2b	3.10 dd (16.0, 7.5)		2.40 br d (17.0)
3		170.9, C		171.0, C
4		84.7, C		82.0, C
5	2.41b	44.8, CH	2.25 br t (8.7)	55.8, CH
6a	2.13b	26.3, CH2	1.94 m	25.3, CH2
6b	1.95 ddd (15.0, 7.5, 2.5)
7	4.56 br d (2.5)	74.6, CH	4.65 br s	74.7, CH
8		41.8, C		45.0, C
9	2.87 d (2.0)	39.9, CH	2.67 d (5.0)	46.9, CH
10		45.4, C		46.0, C
11	5.25 m	68.5, CH	5.38 m	69.4, CH
12a	2.45b	38.2, CH2	2.55 dd (14.4, 10.0)	39.0, CH2
12b	1.62b		1.70b
13		41.8, C		40.0, C
14		68.5, C		69.1, C
15	3.70 s	54.1, CH	3.61 s	56.8, CH
16		169.4, C		168.2, C
17	5.51 s	77.0, CH	5.52 br s	78.8, CH
18	1.41 s	18.3, CH3	1.36 s	19.4, CH3
19a	1.53 s	17.2, CH3	5.12 d (14.0)	67.9, CH2
19b			4.53 d (14.0)
20		165.0, C		164.0, C
21	6.14 br s	97.4, CH	6.12 br s	97.8, CH
22	6.32 br s	124.3, CH	6.35 br s	124.6, CH
23		168.4, C		169.3, C
28	1.40 s	34.2, CH3	1.39 s	29.6, CH3
29	1.60 s	23.6, CH3	1.13 s	20.5, CH3
30	1.30 s	21.1, CH3		21.4, CH3
COCH3-1	2.15 s	21.6, CH3
COCH3-1		169.4, C
COCH3-7	2.15 s	20.2, CH3	2.20 s	21.6, CH3
COCH3-7		169.4, C		169.5, C
COCH3-11	2.15 s	21.1, CH3	2.15 s	21.4, CH3
COCH3-11		169.4, C		170.5, C

^aSpectra were recorded in CDCl₃ at 600 MHz (¹H) and 150 MHz (¹³C). J values are in parentheses and reported in Hz; chemical shifts are given in ppm; assignments were confirmed by 1D-TOCSY, COSY, HSQC, and HMBC experiments.

^bOverlapped signal.