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Position Moiety
Compound III
(400MHz)
11 CH-OH 3.85, m
1 H
Ansell, 1989
(80MHz)
3.86, ddd
(J = 4.7, 7.1, 11.7 Hz)
Compound III
(400MHz)
13 C
# Ansell, 1989
(20MHz)
66.19 69.3
12 CH2
1.82 (α)
1.35 (β)
45.85 40.7
*13 C 39.57 38.7
14 CH= 5.20, s
5.21, d
(J = 1.5 Hz)
127.64 128.4
15 CH=
5.72, dd
(J = 10.57, 17.21 Hz)
5.74, sx
(J = 9.5, 18.1 Hz)
4.87, dd
146.18 145.4
16 CH2
4.89, dd
(J = 9.28, 17.4 Hz)
(J = 1.9, 18.1 Hz)
4.91, dd
(J = 1.9, 9.5 Hz)
112.69 112.5
17 CH3 1.01, s 1.02, s 29.51 29.5
18 CH3 0.99, s 1.00, s 28.43 28.3
19 CH3 0.78, s 0.79, s 15.59 15.7
20 CH3 0.75, s 0.76, s 15.82 16.6
3 OCOCH3 --- --- --- 170.2
3 OCOCH3 --- --- --- 21.1
11 OCOCH3 --- --- --- 170.6
11 OCOCH3 --- --- --- 21.5
* these resonances can be used interchangeably
# The 13 C NMR data corresponds to the acetylated product of compound III
Position
1
2
3
Table 20: 1 H NMR data for compound III (CDCl3) compared with two similar
compounds
Compound III
(400MHz)
Compound 3.1
(80MHz)
1 H
Compound 3.2
(300MHz)
Compound 3.3
(600MHz)
Ansell, 1989 Kang et al., 2005 Meragelman et al., 2003
2.35 2.68, s
1.71, dt
(J = 13.1, 3.5 Hz)
2.02 0.98
1.69 1.61, m
1.57 1.61, m
3.26, dd
(J = 3.84, 10.84 Hz)
3.31, dd
(J = 4.5, 9.6 Hz)
4.0, s
3.21, dd
(J = 11.1, 5,2 Hz)
5 1.08 1.68, m 0.82
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