| [䏿–‡å��ç§°] |
巴西è�Šç´ A |
| [英文�称] |
Eremantholide A |
| [别  �] |
æ— |
| [化å¦å��ç§°] |
6,9-Epoxy-2H-1, 4-dioxacyclodeca [cd]pentalene-2,7 (4aH)-dione, 2a, 3, 5, 6, 11a, 11b-hexahydro-3hydroxy-2a, 6, 10-trimethyl-3-(1-methylethyl)-, (2aR*, 3S*, 4aR*, 6S*, 10Z, 11aS*, 11bS*) -(+)- |
| [分 å� å¼�] |
C19H24O6; |
| [分 å� é‡�] |
348.38 |
|
[物�性质]
|
熔点181~183°, [α]D+65°(乙醇)[1,2]。UVλEtOHmax nm (ε): 266 (9900); IRνKBrmax cm-1; 3400 (OH), 1770 (αβ-饱和内酯的Cï¼�O), 1695 (烯酮的Cï¼�O), 1635 (Cï¼�C), 1582, NMRσ: 4.0, 6.0 (1H, m), 5.60(s), 4.9 (1H,m), 4.0 (1H, s), 2.75 (OH, s), 2.8 (1H, dd)[1]。 |
| [�分分类] |
�类 |
| [��作用] |
对人体鼻咽癌(KB) 细胞有细胞毒活性,其ED50为2μg/ml[1~2]。 |
| [毒  性] |
|
| [�良�应] |
|
| [用  途] |
抗肿瘤 |
| [�分��] |
�科�物巴西� Eremanthus elaeagnus Sch. -Bip. 茎[1~2]。 |