作者:Yoshinori Asakawa、Toshihiro Hashimoto、Keiko Takikawa、Motoo Tori、Shunichi Ogawa
DOI:10.1016/0031-9422(91)84130-k
日期:1991.1
revised by analysis of their 1 H and 13 C NMR data, difference NOE experiments and synthesis of their derivatives. Radulanin L, a new bibenzyl with a dihydrooxepin skeleton was isolated from R. complanata together with 2- and 4-(3-methyl-2-butenyl)-3,5-dihydroxybibenzyls and its structure elucidated by comparison of 1 H and 13 C NMR spectral data with those of radulanins A and H. The structures of the previously
摘要 从苔草中分离出一种新的二氢苯并呋喃和一种新的色烯衍生物,以及已知的 3,5-二羟基-2-(3-甲基-2-丁烯基)联苄基、2(R)-2-异丙烯基- 6,7-二羟基-4-(2-苯乙基)二氢苯并呋喃, 2,2-二甲基-7-羟基-5-(2-苯乙基)色烯, 3,5-二羟基-6-碳甲氧基-2-(3 -methyl-2-butenyl)bibenzyl, 三双 (bibenzyl) 和 perrottetins E、F 和 G。 新化合物的结构已表征为 2( R )-2-isopropenyl-6-hydroxy-4-(2-苯乙基)二氢苯并呋喃和2,2-二甲基-7,8-二羟基-5-(2-苯乙基)色烯通过1 H和13 C NMR谱分析合成。先前报道的查耳酮和三个异戊二烯基联苄、perrottetins A、B 和 C 以及其他两个联苄的结构,从 R 中分离出来。perrottetii 通过分析其 1