Table 1 |
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NMR Spectroscopic Data for Compounds 1-3. |
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|
position |
Compound 1 |
Compound 2 |
Compound 3 |
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|
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|
δ(H) |
δ(C) |
δ(H) |
δ(C) |
δ(H) |
δ(C) |
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|
|
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|
CH(1,1') or CHO |
7.34 (m, 1H) |
126.9(s) |
7.12 (q, J = 7.4, 2H) |
126.9(s) |
9.52 (s, 1H) |
179.4(s) |
|
|
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|
CH(2,2') or C(2) |
7.33 (m, 1H) |
128.4(s) |
7.22 (m, 2H) |
128.1(s) |
153.9(s) |
|
|
|
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|
CH(3, 3') |
7.28 (m, 1H) |
127.5(s) |
7.23 (m, 2H) |
127.9(s) |
7.37 (d, J = 3.545, 1H) |
124.8(d) |
|
|
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|
CH(4, 4') |
7.33 (m, 1H) |
128.4(s) |
7.22 (m, 2H) |
128.1(s) |
6.57 (d, J = 3.560, 1H) |
110.8(d) |
|
|
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|
CH(5, 5') or C(5) |
7.34 (m, 1H) |
126.9(s) |
7.12 (q, J = 7.4, 2H) |
126.9(s) |
163.2(s) |
|
|
|
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|
C(6,6') or CH2(6) |
140.8(s) |
139.8(s) |
4.60 (s, 2H) |
57.6(t) |
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|
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|
CH2(7) or CH(7) |
4.65 (s, 2H) |
65.2(s) |
4.71 (s, 2H meso) |
79.1(d) |
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|
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|
OH |
1.98 (br s, 1H) |
2.85 (br s, 2H) |
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|
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|
δ in ppm, J in Hz Compound 1 and Compound 2 Measured in CDCl3, Chemical shifts referenced to residual CDCl3 (7.256 ppm). Compound 3 Measured in CD3OD, Chemical shifts referenced to residual CD3OD (49.00 ppm) |
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|
Zhou et al. BMC Complementary and Alternative Medicine 2012 12:12 doi:10.1186/1472-6882-12-12 |
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