Table 1.
1H and 13C NMR Data of Compounds 1–4.
Pos. | 1 | 2 | 3 | 4 | ||||
---|---|---|---|---|---|---|---|---|
δC, type | δH (J in Hz) | δC, type | δH (J in Hz) | δC, type | δH (J in Hz) | δC, type | δH (J in Hz) | |
1 | 88.2, C | - | 86.6, C | - | 80.4, C | - | 87.3, C | - |
2 | 137.7, C | - | 137.5, C | - | 134.8, C | - | 133.1, C | - |
3 | 140.4, C | - | 142.1, C | - | 134.0, C | - | 137.0, C | - |
4 | 76.0, CH | 4.47, bs | 75.8, CH | 4.52, dd (12.06, 6.5) |
80.5, CH | 4.80, d (5.9) |
75.5, CH | 4.47, br s |
5 | 65.0, CH | 4.43, d (6.4 | 64.9, CH | 4.47, d (6.5) |
67.9, CH | 4.33, d (6.0) |
66.0, CH | 4.47, br s |
1’ | 57.1, CH | 4.51, d (7.3) |
59.5, CH | 4.82, d (6.7) |
121.0, CH | 6.18, m | 120.6, CH | 6.17, m |
2’ | 69.5, CH | 4.33, p (6.4) |
70.0, CH | 4.20, m | 132.5, CH | 5.93, dq (15.7, 6.6) |
134.55, CH | 6.17, m |
3’ | 20.9, CH3 | 1.34, d (6.2) |
19.8, CH3 | 1.33, d (6.4) |
19.3, CH3 | 1.81, d (7.2) |
19.5, CH3 | 1.82, d (5.1) |
1” | 171.9, C | - | 171.9, C | - | 173.0, C | - | 172.1, C | - |
2” | 54.5, CH3 | 3.91, s | 54.6, CH3 | 3.92, s | 53.9, CH3 | 3.82, s | 54.6, CH3 | 3.91, s |
1-OH | - | 4.12 s | - | 5.11, s | - | - | - | - |
4-OH | - | 3.43, d | - | 3.47, d | - | - | - | - |
2’-OH | - | 1.95 s | - | 3.10 d | - | - | - | - |
CDCl3 (1H NMR 400 MHz, 13C NMR 100 MHz).