作者:H.Ranjith W. Dharmaratne、Subramaniam Sotheeswaran、Sinnathamby Balasubramaniam、Johannes Reisch
DOI:10.1016/s0031-9422(00)81183-8
日期:1986.7
bark of Calophyllum thwaitesii has been shown to contain two new xanthones: 6,8-dihydroxy-2,2-dimethyl-7(3-methylbut-2-enyl)-2H,5H-pyrano-(3,2-a)xanthen-5-one (calothwaitesixanthone) and 1,3,7-trihydroxy-2,8-di(3-methylbut-2-enyl)xanthone(6-deoxy-γ-mangostin). Thwaitesixanthone has also been isolated from the root bark extracts of C. thwaitesii . The root bark extracts of C. calaba var. calaba and C
摘要 Calophyllum thwaitesii 的根皮已被证明含有两种新的氧杂蒽酮:6,8-二羟基-2,2-二甲基-7(3-methylbut-2-enyl)-2H,5H-pyrano-(3,2- a) xanthen-5-one (calothwaitesixanthone) 和 1,3,7-trihydroxy-2,8-di(3-methylbut-2-enyl)xanthone(6-deoxy-γ-mangostin)。Thwaitesixanthone 也已从 C. thwaitesii 的根皮提取物中分离出来。C. calaba var. 的根皮提取物。calaba 和 C. bracteatum 含有calabaxanthone 和calocalabaxanthone。Trapezifolixanthone 也已从 C. calaba var. 中分离出来。卡拉巴