Table 4.
1H-NMR (600 MHz) and 13C-NMR (150 MHz) data of compound 4 (δ in ppm).
| NO. | δ C b | δH b(J in Hz) | NO. | δ C b | δH b(J in Hz) |
|---|---|---|---|---|---|
| 1 | 39.1 | 0.73 m, 1.52 m | 3-O-Glc | ||
| 2 | 26.8 | 1.34 m, 1.98 m | 1′ | 106.8 | 4.93 (d, J = 7.8 Hz) |
| 3 | 89.2 | 3.43 (dd, J = 4.8, 10.8 Hz) | 2′ | 75.6 | 4.08 m a |
| 4 | 39.7 | / | 3′ | 78.7 | 4.21 m a |
| 5 | 56.4 | 0.66 m | 4′ | 71.6 | 3.99 m |
| 6 | 18.5 | 1.34 m, 1.47 m | 5′ | 78.2 | 4.05 m |
| 7 | 35.1 | 1.19 m a | 6′ | 62.8 | 4.44 m |
| 8 | 40.1 | / | 20-O-Glc | ||
| 9 | 50.1 | 1.35 m | 1″ | 97.9 | 5.14 (d, J = 7.8 Hz) |
| 10 | 36.9 | / | 2″ | 75.1 | 3.93 m |
| 11 | 30.8 | 1.54 m a, 1.99 m a | 3″ | 78.8 | 4.35 m |
| 12 | 70.6 | 3.65 m a | 4″ | 71.9 | 3.96 m |
| 13 | 49.5 | 4.94 m | 5″ | 76.4 | 4.04 m |
| 14 | 51.5 | / | 6″ | 68.3 | 4.15 m, 4.25 m |
| 15 | 30.5 | 0.97 m a, 1.45 m a | Ara (p) | ||
| 16 | 26.4 | 1.38 m a, 2.25 m a | 1‴ | 104.6 | 5.00 (d, J = 6.0 Hz) |
| 17 | 52.4 | 3.16 m | 2‴ | 72.1 | 4.46 m |
| 18 | 16.6 | 0.87 s | 3‴ | 74.1 | 4.22 m |
| 19 | 16.3 | 0.95 s | 4‴ | 68.5 | 4.37 m |
| 20 | 83.8 | / | 5‴ | 65.6 | 3.79 m, 4.30 m |
| 21 | 23.3 | 1.48 s | |||
| 22 | 39.6 | 2.24 (dd, J = 16.0, 9.6 Hz) | |||
| 23 | 122.7 | 6.23 (ddd, J = 5.8, 8.5, 15.5 Hz) | |||
| 24 | 142.2 | 6.09 (d, J = 15.5 Hz) | |||
| 25 | 70.0 | / | |||
| 26 | 17.7 | 1.59 s | |||
| 27 | 17.8 | 1.53 s | |||
| 28 | 27.9 | 1.30 s | |||
| 29 | 28.1 | 0.99 s | |||
| 30 | 17.2 | 1.02 s |
a: Overlapped signals, b: C5D5N, s: singlet, d: doublet, m: multiple, ′: the first sugar, ″: the second sugar, ‴: the third sugar, /: no hydrogen.