Table 2 13C NMR data of compounds 1–5
From: 2-Benzyl-benzofurans from the tubers of Ophiopogon japonicus
Position | 1 (CD3OD) | 2 (CDCl3) | 3 (CD3OD) | 4 (CDCl3) | 5 (CDCl3) |
|---|---|---|---|---|---|
2 | 85.1 | 85.8 | 158.3 | 85.3 | 86.2 |
3 | 35.9 | 34.0 | 103.5 | 34.3 | 34.5 |
3a | 118.0 | 117.2 | 122.0 | 121.2 | 122.9 |
4 | 123.9 | 126.2 | 106.0 | 118.3 | 116.8 |
5 | 117.3 | 119.0 | 143.1 | 109.9 | 104.3 |
6 | 153.8 | 157.8 | 144.3 | 152.1 | 148.7 |
7 | 108.1 | 93.6 | 98.6 | 133.7 | 130.0 |
7a | 158.1 | 157.2 | 150.7 | 151.4 | 141.9 |
1′ | 131.2 | 116.2 | 130.1 | 129.3 | 129.1 |
2′ | 131.4 | 156.2 | 130.8 | 130.4 | 130.3 |
3′ | 114.7 | 102.9 | 116.2 | 113.9 | 113.9 |
4′ | 159.8 | 160.2 | 157.0 | 158.4 | 158.3 |
5′ | 114.8 | 106.4 | 116.2 | 113.9 | 113.9 |
6′ | 131.4 | 132.1 | 130.8 | 130.4 | 130.3 |
7′ | 42.0 | 36.9 | 34.8 | 40.9 | 40.7 |
5-Me | 16.5 | 15.8 | – | – | – |
7-Me | 9.2 | – | – | – | – |
4′-OMe | 55.7 | 55.6 | – | 55.3 | 55.2 |
6-OMe | – | 55.3 | – | 56.4 | – |
7-OMe | – | – | – | 60.5 | – |
-OCH2O- | – | – | – | – | 100.2 |