Table 1 1H (600 MHz) and 13C (150 MHz) NMR data of 1–3 (δ in ppm, in DMSO-d6)
From: Phenylethanol glycosides from the seeds of Aesculus chinensis var. chekiangensis
Position | 1 | 2 | 3 | |||
|---|---|---|---|---|---|---|
δC | δH | δC | δH | δC | δH | |
1 | 130.5 | 130.7 | 130.6 | |||
2 | 129.9 | 7.17 (1H, d, J = 8.5 Hz) | 130.0 | 7.17 (1H, d, J = 8.7 Hz) | 130.0 | 7.18 (1H, d, J = 8.7 Hz) |
3 | 113.7 | 6.83 (1H, d, J = 8.5 Hz) | 113.6 | 6.83 (1H, d, J = 8.7 Hz) | 113.6 | 6.82 (1H, d, J = 8.7 Hz) |
4 | 157.6 | 157.6 | 157.7 | |||
5 | 113.7 | 6.83 (1H, d, J = 8.5 Hz) | 113.6 | 6.83 (1H, d, J = 8.7 Hz) | 113.6 | 6.82 (1H, d, J = 8.7 Hz) |
6 | 129.9 | 7.17 (1H, d, J = 8.5 Hz) | 130.0 | 7.17 (1H, d, J = 8.7 Hz) | 130.0 | 7.18 (1H, d, J = 8.7 Hz) |
7 | 34.8 | 2.78 (2H, dt, J = 8.2, 6.3 Hz) | 34.7 | 2.78 (2H, dt, J = 8.2, 6.4 Hz) | 34.6 | 2.78 (2H, dt, J = 8.4, 6.6 Hz) |
8 | 69.9 | 3.83 (1H, dt, J = 8.2, 6.3 Hz) 3.62 (1H, overlap) | 69.8 | 3.89 (1H, dt, J = 8.2, 6.4 Hz) 3.60 (1H, overlap) | 69.9 | 3.92 (1H, dt, J = 8.4, 6.6 Hz) 3.60 (1H, overlap) |
4-OCH3 | 55.0 | 3.71 (3H, s) | 55.0 | 3.71 (3H, s) | 54.9 | 3.71 (3H, s) |
1′ | 103.0 | 4.17 (1H, d, J = 7.7 Hz) | 101.3 | 4.33 (1H, d, J = 7.7 Hz) | 101.6 | 4.39 (1H, d, J = 7.5 Hz) |
2′ | 73.4 | 2.94 (1H, t, J = 8.5 Hz) | 82.2 | 3.23 (1H, dd, J = 9.1, 7.7 Hz) | 79.6 | 3.44 (1H, m) |
3′ | 76.7 | 3.13 (1H, t, J = 8.9 Hz) | 76.7 | 3.10 (1H, m) | 86.2 | 3.49 (1H, t, J = 8.8 Hz) |
4′ | 70.2 | 2.99 (1H, t, J = 9.1 Hz) | 69.8 | 3.10 (1H, m) | 68.4 | 3.19 (1H, m) |
5′ | 75.4 | 3.26 (1H, m) | 76.1 | 3.36 (1H, m) | 76.1 | 3.18 (1H, m) |
6′ | 67.0 | 3.81 (1H, dd, J = 11.2, 2.0 Hz) 3.42 (1H, dd, J = 11.2, 6.0 Hz) | 60.9 | 3.65 (1H, m) 3.42 (1H, dd, J = 11.2, 5.2 Hz) | 61.2 | 3.65 (1H, m) 3.47 (1H, m) |
1′′ | 100.8 | 4.59 (1H, d, J = 1.2 Hz) | 104.1 | 4.41 (1H, d, J = 7.8 Hz) | 102.8 | 4.55 (1H, d, J = 8.0 Hz) |
2′’ | 70.5 | 3.60 (1H, m) | 74.9 | 3.00 (1H, dd, J = 8.4, 7.8 Hz) | 74.5 | 2.94 (1H, dd, J = 8.5, 5.9 Hz) |
3′′ | 70.7 | 3.42 (1H, m) | 77.1 | 3.08 (1H, m) | 76.4 | 3.19 (1H, m) |
4′′ | 72.0 | 3.17 (1H, t, J = 9.1 Hz) | 69.9 | 3.10 (1H, m) | 70.0 | 3.62 (1H, m) |
5′’ | 68.4 | 3.45 (1H, m) | 76.1 | 3.16 (1H, m) | 76.2 | 3.16 (1H, m) |
6′′ | 18.0 | 1.12 (3H, d, J = 6.2 Hz) | 61.0 | 3.65 (1H, m) 3.49 (1H, dd, J = 11.2, 5.5 Hz) | 61.0 | 3.67 (1H, m) 3.39 (1H, dd, J = 11.8, 5.9 Hz) |
1′′′ | 103.4 | 4.38 (1H, d, J = 7.9 Hz) | ||||
2′′′ | 73.7 | 3.04 (1H, d, J = 8.7 Hz) | ||||
3′′′ | 76.9 | 3.07 (1H, m) | ||||
4′′′ | 70.1 | 3.06 (1H, m) | ||||
5′′′ | 76.8 | 3.05 (1H, m) | ||||
6′′′ | 60.7 | 3.69 (1H, m) 3.45 (1H, m) | ||||