Table 3.

¹H (400 MHz) NMR data of 8~14 [δ_H, mult. (J in Hz)].

Position	8a	9a	10a	11a	12a	13a	14a	14c
1	4.74, dd (12.6, 5.2)	2.88, m 2.79, m	3.94, d (4.2)		6.96, s	6.04, s	5.88, s	5.90, s
2	2.31, dt (12.7, 4.5) 1.66, m	2.64, ddd (14.3, 12.3, 7.1) 2.47, ddd (14.3, 6.2, 3.6)	3.35, d (4.2)
3	3.95, q (3.2)		3.90, br. s			5.46, d (4.4)
4	1.61, m	2.73, q (6.8)				2.39, qd (7.0, 4.4)
6	1.92, d (14.7) 1.77, d (14.7)	2.02, d (14.6) 1.88, d (14.6)	2.38, d (14.0) 1.70, d (14.0)	3.25, d (16.4) 2.42, d (17.4)	3.26, d (16.8) 2.74, d (16.8)	2.90, d (16.3) 2.33, br. d (16.3)	2.98, br. d (15.8) 2.80, d (16.7)	2.78, br. s
9	6.18, s	5.95, d (1.7)	6.39, s	6.68, s		6.01, s	6.05, s	6.00, s
11	2.18, hept (6.9)	2.29, hept (6.8)
12	0.88, d (6.9)	0.93, d (6.8)	0.94, s		7.77, s
13	0.82, d (6.9)	0.84, d (6.8)	1.34, s	1.97, s	2.09, s	1.95, d (2.1)	1.90, d (1.8)	1.82, s
14	1.41, s	1.15, s	1.21, s	1.32, s	1.39, s	1.29, s	1.24, s	1.11, s
15	1.15, d (7.0)	1.07, d (6.7)	1.55, s	2.07, s	2.11, s	1.14, d (7.0)	1.62, s	1.52, s
-NH						8.05, s		10.30, s
4-OH								7.26, s
3-OAc						2.12, s

Recorded in

^aCD₃OD;

^bCDCl₃;

^cDMSO-d₆.