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. Author manuscript; available in PMC: 2011 Nov 29.
Published in final edited form as: J Nat Prod. 2010 Oct 28;73(11):1756–1762. doi: 10.1021/np1002143

Table 3.

1H NMR Data for Compounds 5–10 (in CDCl3)

Position 5a 6a 7b 8a 9a 10 a
1 1.40 m 1.25 m 1.26 m 1.33 m 1.49m 1.33 m
2.50 m 2.95 m 2.95 m 3.18 m 2.13 m 2.88 m
2 1.72 m 2.35 m 2.40 m 2.35 m 2.30 m 2.37 m
1.94 m 2.49 m 2.49 m 2.51 m 2.42 td (14.4, 8.8) 2.50 m
3 3.79 br s
4 1.74 m 2.35 m 2.40 m 2.36 m 2.24 m 2.38 m
5 2.12 m 1.39 m 1.46 m 1.39 m 1.83 m 1.41 m
6 2.25 t (15.1)c 1.56 m 1.57 m 1.43 m 1.27 m 1.42 m
2.41 dd (15.1, 3.0) 2.49 m 1.89 m 1.78 m 1.83 m 1.78 m
7 4.39 t (8.0) 4.26 d (2.0) 2.18 m 5.18 br s 2.11 m
2.37 m 2.30 m
9 1.75 m
11 1.54 m
1.64 m
12 2.40 d (13.6) 2.32 d (14.0) 2.38 d (14.5) 2.33 d (14.4) 1.27 m 2.18 d (13.9)
2.89 d (13.6) 2.83 d (14.0) 2.84 d (14.5) 2.80 d (14.4) 2.04 m 2.47 d (13.9)
14 2.62 dd (12.4, 7.0) 2.71 m 2.78 m 2.64 dd (12.0, 7.6) 1.81 m 2.09 m
15 1.47 m 1.90 m 1.90 m 1.52 m 1.41 m 1.37 m
2.55 m 2.09 m 2.07 m 1.81 m 1.52 m 1.93 m
16 1.25 m 1.44 m 1.40 m 1.42 m 1.29 m 1.47 m
1.98 m 1.96 m 1.90 m 1.81 m 1.73 m 2.08 m
17 1.42 m 1.38 m 1.46 m 1.48 m 1.28 m 1.39 m
18 0.67 s 0.77 s 0.72 s 0.74 s 0.57 s 1.02 s
19 1.31 s 1.44 s 1.26 s 1.34 s 1.01 s 1.37 s
20 1.42 m 1.41 m 1.43 m 1.47 m 2.05 m 1.46 m
21 0.93 d (5.6) 0.92 d (5.5) 0.93 d (6.0) 0.95 d (5.6) 1.02 d (7.2) 0.90 d (6.4)
22 1.18 m 1.25 m 1.32 m 1.22 m 5.25 m 1.17 m
1.57 m 1.58 m 1.59 m 1.53 m 1.47 m
23 1.95 m 1.98 m 2.00 m 1.89 m 5.25 m 1.95 m
2.16 m 2.15 m 2.17 m 2.10 m 2.14 m
24 2.23 m
25 3.13 q (7.0) 3.12 q (6.8) 3.16 q (7.0) 2.24 m 1.58 m 3.13 q (7.0)
26 1.06 d (6.8) 3.45 dd (10.4, 6.4)
3.56 dd (10.4, 6.4)
27 1.28 d (7.0) 1.27 d (6.8) 1.30 d (7.5) 1.03 d (6.8) 0.86 d (6.8) 1.28 d (7.0)
28 4.92 s, 4.88 s 4.91 s, 4.89 s 4.94 s 4.67 s 1.00 d (6.8) 4.92 s, 4.88 s
4.90 s, 4.86 sd 4.87 s, 4.85 sd 4.99 s 4.74 s 4.90 s, 4.87 sd
29 0.96 d (6.4) 1.03 d (7.0) 1.29 d (6.8) 1.04 d (6.6)
OMe 3.66 s 3.66 s 3.66 s
a

Recorded at 400 MHz at 25 °C.

b

Recorded at 500 MHz at 25 °C.

c

J values (in Hz) in parentheses.

d

Chemical shifts for 25-epimer.