Chung M I, Weng J R, Lai M H, Yen M H, Lin C N
School of Pharmacy, Kaohsiung Medical College, Kaohsiung, Taiwan 807, Republic of China.
J Nat Prod. 1999 Jul;62(7):1033-5. doi: 10.1021/np980533+.
A new prenyl chalcone, gemichalcone C (1), was isolated from the heartwood and root of Hypericum geminiflorum. Three new xanthones-6, 7-dihyroxy-1,3-dimethoxyxanthone (2), 4-hydroxy-1, 2-dimethoxyxanthone (3), and gemixanthone A (4)-and four known xanthones were isolated from the leaves and stems of the same plant.
从双花金丝桃的心材和根中分离出一种新的异戊烯基查尔酮,即双花查尔酮C(1)。从同一植物的叶和茎中分离出三种新的呫吨酮——6,7 - 二羟基 - 1,3 - 二甲氧基呫吨酮(2)、4 - 羟基 - 1,2 - 二甲氧基呫吨酮(3)和双花呫吨酮A(4)——以及四种已知的呫吨酮。