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. Author manuscript; available in PMC: 2018 Apr 28.

Published in final edited form as: J Nat Prod. 2017 Mar 30;80(4):1141–1149. doi: 10.1021/acs.jnatprod.7b00108

Table 5.

¹H NMR (400/500 MHz) Data for Compounds 7, 7B, 7C, 8, 9, and 10 (δ_H in ppm, multi, J in Hz)

no.	7^a	7B^a	7C^b	8^b	9^a	10^a
2		3.29, s
4	2.55, m	2.20, m	2.72, m	2.47^c	2.64^c	3.16, m
5	1.78, dd (5.7, 15.3) 2.73, dd (13.6)	1.95, dd (8.6, 13.1) 2.20, m	2.04, m 2.86, dd (11.9)	1.53, m 2.92, dd (12.2)	1.58, dd (5.5, 16.0) 2.18, dd (1.8, 16.0)	1.34^c 1.81, m
6				2.47^c		2.60^d
8	3.18, d (8.0)	2.99, d (7.8)	3.67, d (8.4)	3.23, dd (7.0, 12.2)	3.93, d (1.7)	2.63^d
9	4.52, m	4.22, m	5.46, dd (4.1, 8.4)	1.85, dd (7.0, 13.1) 2.65, t (13.1)	3.15, dd (2.1, 3.0)	1.77, m 2.01, dd (3.5, 10.7)
10	2.43, d (4.0)	2.41, d (4.5)	3.10, d (4.1)		2.93, t (3.0)	2.21
11	4.29, d (7.6)	4.22, br s	5.44, br s	3.01, s	3.34, d (2.6)	3.86, t (5.4)
13					2.47, m	2.40^e
14	1.59, d (14.5) 2.27, d (14.5)	2.04, d (14.7) 2.26 d (14.4)	1.91, d (15.2) 2.47, d (15.2)	1.42, d (11.8) 2.78, d (11.8)	1.30, dd (3.4, 12.6) 2.67^c	1.35^c 2.40^e
17	1.16, d (7.2)	1.13, d (6.7)	1.27, d (7.1)	1.29, d (7.0)	1.06, d (6.5)	0.96, d (6.8)
18	1.10, s	1.22, s	1.31, s	1.13, d (7.2)	1.36, s	0.98, d (7.1)
19	1.29, s	1.22, s	1.38, s	1.46, s	1.45, s	1.49, s
20	1.07, s	1.15, s	1.29, s	1.45, s	0.94, d (7.2)	3.24, 3.53, m
3-OH	10.89, s	5.96, s		11.46, s
6-OH	4.93, s	4.93, s
9-OH	5.29, d (4.7)	5.31, d (4.7)
11-OH	6.34, d (7.6)	6.39, d (7.3)				5.96, d (5.6)
13-OH	5.80, s	5.72, s
20-OH						4.73, t (5.2)

^a

Measured in DMSO-d₆.

^b

Measured in CDCl₃.

^c,d,e

Signals overlapped.