Table 5. ¹H NMR (500 MHz) Data for Compounds 11–15 in CDCl₃.

	δH,mult. (Jin Hz)
No.	11	12	13	14 + 15
1	1.10, m	1.11, m	1.05, m	1.11, m
	2.55, m	2.52, m	2.45, m	2.52, m
2	1.67, m	1.73, m	1.71, m	1.74, m
	1.76, m	1.74, m
3	3.30, dd (10.3, 5.5)	3.30, m	3.28, m	3.30, dd (10.4, 5.5)
5	1.64, m	1.64, dd (13.5, 4.9)	1.65, m
6	2.44, m	2.48, m	2.49, m	1.65, m
	2.55, m	2.52, m	2.54, m	2.48, m
12	2.48, d (18.7)	2.43, d (19.0)	2.44, d (18.7)	2.44, m
	2.67, d (18.7)	2.65, d (19.0)	2.68, d (18.7)	2.64, m
15	1.66, m	1.66, m	1.65, m	1.65, m
	2.15, t (11.2)	2.13, m	2.16, m	2.14, m
16	1.41, m	1.38, m	1.40, m	1.40, m
	2.02, m	2.02, m	2.04, m	2.02, m
17	1.68, m	1.65, m	1.67, m	1.65, m
18	0.95, s	0.92, s	0.93, s	0.92, s
19	1.31, s	1.31, s	1.31, s	1.30, s
20	1.53, m	1.46, m	1.55, m	1.46, m
21	0.87, d, 6.5	0.92, d (6.8)	0.94, d (6.4)	0.87, d (6.4)
22	1.73, m	0.99, m	1.24, m	1.10, m
	2.27, dt, (13.7, 3.3)	1.44, m	1.65, m	1.50, m
23	5.48, m	1.46, m	2.29, m	1.37, m
		1.65, m	2.42, m	1.65, m
24	5.40, d (15.8)	2.40, t (7.0)	6.45, t (7.3)	4.27, t (6.5)
25	1.25, s
26	1.25, s	2.13, s	9.40, s	5.02, br s
				5.04, m
27			1.75, s	1.74, s
28	1.03, s	1.03, s	1.03, s	1.03, s
29	0.90, s	0.91, s	0.90, s	0.90, s
30	1.09, s	1.08, s	1.09, s	1.08, s
25-OCH3	3.15, s