Table 2.
1H-NMR (600 MHz) and 13C-NMR (150 MHz) data of compound 2 (δ in ppm).
| NO. | δ C b | δHb (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 = 7.8 Hz) |
| 3 | 88.6 | 3.37 (dd, J = 4.8, 10.8 Hz) | 2′ | 76.0 | 4.08 m a |
| 4 | 39.4 | / | 3′ | 78.9 | 4.21 m a |
| 5 | 56.1 | 0.72 m | 4′ | 71.8 | 3.99 m |
| 6 | 18.2 | 1.36 m, 1.47 m | 5′ | 78.2 | 4.05 m |
| 7 | 34.8 | 1.20 m, 1.48 m | 6′ | 62.8 | 4.44 (dd, J = 4.8, 10.8 Hz) |
| 8 | 39.7 | / | 20-O-Glc | ||
| 9 | 49.9 | 1.37 m | 1″ | 97.9 | 5.17 (d, J = 7.7 Hz) |
| 10 | 36.7 | / | 2″ | 75.1 | 3.97 m |
| 11 | 30.1 | 1.40 m, 1.99 m a | 3″ | 78.8 | 4.30 m |
| 12 | 70.1 | 3.12 m | 4″ | 71.9 | 4.22 m |
| 13 | 49.2 | 2.05 m | 5″ | 76.4 | 4.04 m |
| 14 | 51.2 | / | 6″ | 68.3 | 4.09 m, 4.36 m |
| 15 | 30.5 | 0.97 m, 1.45 m | Ara(f) | ||
| 16 | 26.4 | 1.38 m, 2.24 m | 1‴ | 109.8 | 4.69 br.s |
| 17 | 51.7 | 2.54 m | 2‴ | 83.4 | 4.13 m a |
| 18 | 15.6 | 0.93 s | 3‴ | 78.7 | 4.16 m a |
| 19 | 16.0 | 0.79 s | 4‴ | 85.9 | 4.06 m a |
| 20 | 83.2 | / | 5‴ | 62.7 | 3.71 (d, J = 10.2 Hz), 4.30 m |
| 21 | 22.3 | 1.63 s | |||
| 22 | 32.6 | 2.54 m, 2.24 (dd, J = 9.8, 15.2 Hz) | |||
| 23 | 30.6 | 1.53 m, 2.23 m | |||
| 24 | 76.6 | 4.47 m | |||
| 25 | 150.0 | / | |||
| 26 | 110.3 | 4.95 br.s, 5.26 br.s | |||
| 27 | 17.8 | 1.91 s | |||
| 28 | 27.9 | 1.31 s | |||
| 29 | 16.6 | 0.96 s | |||
| 30 | 17.0 | 0.94 s |
a: Overlapped signals, b: C5D5N, s: singlet, d: doublet, m: multiplet, br.s: broad singlet, ′: the first sugar, ″: the second sugar, ‴: the third sugar, /: no hydrogen.