TABLE 2.
1H NMR (400 MHz) and13C NMR (100 MHz) data of compound 1 in CD3OD-DCl (9:1).
| Position | 1 | |
|---|---|---|
| δ H (J in Hz) | δ C type | |
| 1 | — | — |
| 2 | — | 164.0, C |
| 3 | — | 145.0, C |
| 4 | 8.92 s | 139.1, CH |
| 5 | — | 158.8, C |
| 6 | 6.57 d (1.28) | 103.5, CH |
| 7 | — | 174.2, C |
| 8 | 6.65 d (1.28) | 95.5, CH |
| 9 | — | 157.3, C |
| 10 | — | 113.1, C |
| 1′ | — | 119.8, C |
| 2′ | 7.68 d (2.6) | 112.6, CH |
| 3′ | — | 147.1, C |
| 4′ | — | 143.9, C |
| 5′ | — | 147.1, C |
| 6′ | 7.68 d (2.6) | 112.6, CH |
| 3-O-Glc (Glc A) | ||
| 1″ | 5.34 d (7.5) | 103.5, CH |
| 2″ | 3.99 dd (8.8, 7.5) | 84.1, CH |
| 3″ | 3.80 dd (9.0, 9.0) | 77.1, CH |
| 4″ | 3.56 m | 70.3, CH |
| 5″ | 3.50 m | 78.2, CH |
| 6″ | 3.70 dd (12.2, 5.1), 3.84 dd (12.2, 1.9) | 61.9, CH2 |
| 2″-O-Glc (Glc B) | ||
| 1‴ | 4.80 d (7.6) | 106.0, CH |
| 2‴ | 3.38 m | 75.9, CH |
| 3‴ | 3.48 m | 77.1, CH |
| 4‴ | 3.33 m | 71.1, CH |
| 5‴ | 3.42 m | 75.2, CH |
| 6‴ | 4.00 dd (12.1, 5.5), 4.14 dd (12.1, 2.0) | 64.1 CH2 |
| p-coumaric acid | ||
| 1‴′ | — | 126.5, C |
| 2‴′ | 7.07 d (8.6) | 130.9, CH |
| 3‴′ | 6.72 d (8.6) | 116.8, CH |
| 4‴′ | — | 160.8, C |
| 5‴′ | 6.72 d (8.6) | 116.8, CH |
| 6‴′ | 7.07 d (8.6) | 130.9, CH |
| 7‴′ | 7.09 d (16.0) | 146.3, CH |
| 8‴′ | 5.71 d (16.0) | 113.1, CH |
| 9‴′ | — | 168.6, C |