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Present data
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Reference data [35]
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|---|
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Position
|
δC (ppm)
|
δH (ppm)
|
δC (ppm)
|
δH (ppm)
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|---|
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1
|
161.69
|
12.6 (1H, s, −OH)
|
161.7
|
12.53 (1H, s, −OH)
|
|
1a
|
115.22
|
–
|
114.7
|
–
|
|
2
|
125.31
|
7.28 (1H, s)
|
124.6
|
7.32 (1H, q, J = 0.7 Hz)
|
|
3
|
152.44
|
–
|
151.6
| |
|
4
|
125.75
|
–
|
128.5
| |
|
4a
|
132.72
|
–
|
131.6
| |
|
5
|
120.11
|
7.55 (1H, dd, J = 1.5, 7 Hz)
|
119.3
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7.56 (1H, dd, J = 1.5, 7 Hz)
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|
5a
|
134.27
|
–
|
134.4
| |
|
6
|
137.12
|
7.57 (1H, dd, J = 7, 8 Hz)
|
137.4
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7.75 (1H, dd, J = 7, 8 Hz)
|
|
7
|
123.85
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7.21 (1H, dd, J = 1.5, 8 Hz)
|
123.3
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7.30 (1H, dd, J = 1.5, 8 Hz)
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|
8
|
159.51
|
11.9 (1H, s, -OH)
|
161.1
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12.0 (1H, s, -OH)
|
|
8a
|
115.37
|
–
|
115.5
|
–
|
|
9
|
192.68
|
–
|
192.5
|
–
|
|
10
|
182.66
|
–
|
181.9
|
–
|
|
1’
|
106.07
|
–
|
104.7
|
–
|
|
2’
|
163.27
|
5.7 (1H, s (br), -OH)
|
163.3
|
8.95 (1H, s (br), -OH)
|
|
3’
|
107.14
|
–
|
107.3
|
–
|
|
4’
|
163.07
|
–
|
162.4
|
–
|
|
5’
|
90.61
|
6.19 (1H, s)
|
91.2
|
6.24 (1H, s)
|
|
6’
|
162.85
|
14.3 (1H, s, -OH)
|
161.9
|
–
|
|
ArCH3
|
21.02
|
2..21 (3H, s)
|
20.4
|
2.17 (3H, d, J = 0.7 Hz)
|
|
OCH3
|
55.56
|
3.91 (3H, s)
|
55.6
|
3.98 (3H, s)
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|
COCH3
|
33.14
|
2.70 (3H, s)
|
32.6
|
2.62 (3H, s)
|
|
COCH3
|
202.3
|
–
|
202.3
|
–
|
- s, singlet, d, doublet, dd, doublet of doublets, q, quartet, m, multiplet, br, broad
