Table 3.
1H-NMR (600 MHz) and 13C-NMR (150 MHz) data of compound 3 (δ in ppm).
| NO. | δ C b | δH b(J in Hz) | NO. | δ C b | δHb (J in Hz) |
|---|---|---|---|---|---|
| 1 | 38.9 | 0.76 m, 1.52 m | 3-O-Glc | ||
| 2 | 26.5 | 1.82 m, 2.28 m | 1′ | 106.8 | 4.97 (d, J = 7.6 Hz) |
| 3 | 88.6 | 3.38 (dd, J = 4.2, 11.6 Hz) | 2′ | 75.6 | 4.08 m a |
| 4 | 39.4 | / | 3′ | 78.7 | 4.19 m a |
| 5 | 56.1 | 0.73 (d, J = 12.4 Hz) | 4′ | 71.6 | 4.24 m |
| 6 | 18.2 | 1.36 m, 1.47 m | 5′ | 78.2 | 4.04 m |
| 7 | 34.8 | 1.18 m | 6′ | 62.8 | 4.44 m, 4.64 (d, J = 12.4 Hz) |
| 8 | 39.8 | / | 20-O-Glc | ||
| 9 | 50.0 | 1.37 m | 1″ | 97.9 | 5.12 br.s |
| 10 | 37.3 | / | 2″ | 75.1 | 3.93 m |
| 11 | 30.7 | 1.51 m a, 1.99 m a | 3″ | 78.8 | 4.25 m |
| 12 | 66.9 | 4.18 m a | 4″ | 71.9 | 4.20 m a |
| 13 | 49.3 | 2.02 m | 5″ | 76.4 | 4.14 m a |
| 14 | 51.2 | / | 6″ | 68.3 | 4.10 m, 4.31 m |
| 15 | 30.3 | 0.97 m a, 1.45 m a | Xyl | ||
| 16 | 26.1 | 1.30 m a, 2.25 m a | 1‴ | 105.5 | 4.97 (d, J = 7.2 Hz) |
| 17 | 51.6 | 1.42 m | 2‴ | 74.7 | 4.02 m |
| 18 | 15.8 | 0.97 s | 3‴ | 77.8 | 4.13 m |
| 19 | 16.1 | 0.81 s | 4‴ | 70.9 | 4.14 m |
| 20 | 83.0 | / | 5‴ | 66.8 | 3.96 (t, J = 10.2 Hz), 4.30 m |
| 21 | 23.6 | 1.63 s | |||
| 22 | 22.2 | 1.64 m a | |||
| 23 | 26.0 | 1.97 m a, 2.23 m a | |||
| 24 | 89.8 | 4.80 m | |||
| 25 | 145.9 | / | |||
| 26 | 113.3 | 5.09 br.s, 5.27 br.s | |||
| 27 | 17.3 | 1.96 s | |||
| 28 | 27.9 | 1.32 s | |||
| 29 | 16.6 | 1.01 s | |||
| 30 | 17.0 | 0.98 s |
a: Overlapped signals, b: C5D5N, s: singlet, d: doublet, t: triplet, m: multiplet, br.s: broad singlet, ′: the first sugar, ″: the second sugar, ‴: the third sugar, /: no hydrogen.