Pachypophyllin and pachypostaudins A and B: three bisnorlignans from pachypodanthium staudtii☆
作者:Bonaventure T. Ngadjui、David Lontsi、Johnson Foyere Ayafor、B.Lucas Sondengam
DOI:10.1016/0031-9422(89)85044-7
日期:——
Abstract Three new bisnor lignans, pachypophyllin, pachypostaudin-A and pachypostaudin-B have been isolated from the bark of Pachypodanthium staudtii and their structures have been determined by 1 H and 13 CNMR spectroscopy and chemical correlations. 2,4,5-Trimethoxystyrene, probably a precursor of the bisnor lignans, was also isolated from the extracts. Furthermore, the potent antiviral flavonol,
摘要 从Pachypodanthium staudtii 的树皮中分离到了三种新的双酚木脂素,厚叶黄素、厚叶后缀素-A 和厚叶后缀素-B,并通过 1 H 和 13 CNMR 光谱和化学关联确定了它们的结构。2,4,5-三甲氧基苯乙烯,可能是双酚木脂素的前体,也从提取物中分离出来。此外,还大量获得了有效的抗病毒黄酮醇,厚皮醇。