Isopongaglabol and 6-methoxyisopongaglabol, two new hydroxyfuranoflavones from Pongamia glabra
作者:Sunil K. Talapatra、Asok K. Mallik、Bani Talapatra
DOI:10.1016/0031-9422(82)83183-x
日期:——
6-methoxyisopongaglabol, two new hydroxyfuranoflavones, together with two furanoflavones 5-methoxyfurano(8,7-4″,5″)flavone and 5-methoxy-3′,4′-methylenedioxyfurano(8,7-4″,5″)flavone, two simple flavones, desmethoxykanugin and fisetin tetramethyl ether, a chromenoflavanone, ovalichromene B, two triterpenes, cycloart-23-ene-3β,25-diol and friedelin, and β-sitosterol-β- d -glucoside were isolated from the petrol and
摘要 Isopgaglabol 和 6-methoxyisopongaglabol,两种新的羟基呋喃黄酮,以及两种呋喃黄酮 5-甲氧基呋喃 (8,7-4",5") 黄酮和 5-甲氧基-3',4'-亚甲二氧基呋喃 (8,7-4"), 5″)黄酮、两种简单黄酮、去甲氧基卡努金和非瑟酮四甲醚、一种色烯黄酮、卵色烯B、两种三萜、cycloart-23-ene-3β,25-二醇和弗里德林,以及β-谷甾醇-β-d-葡萄糖苷来自水杨花的汽油和 CHCl 3 提取物。异蓬加拉波和 6-甲氧基异蓬加拉波的结构已确定为 4'-羟基呋喃 (8,7-4",5") 黄酮和 4'-羟基-6-甲氧基呋喃 (8,7-4",5") 黄酮,分别是根据光谱证据和合成证实的。