A series of sesquiterpenes with a 7.ALPHA.-isopropyl side chain and compounds isolated from Curcuma wenyujin.
作者:Kenzo HARIMAYA、Ji-Fu GAO、Tamiko OHKURA、Takeshi KAWAMATA、Yoichi IITAKA、Yong-Tian GUO、Seiichi INAYAMA
DOI:10.1248/cpb.39.843
日期:——
Sesquiterpenoids possessing a 7α-isopropyl group, such as curcumol (1a), curdione (2a), curcumalactone (3), and a new epoxy germacrane, (1R, 10R)-epoxy-(-)-1, 10- dihydrocurdione (5a), were isolated from the essential oil of Curcuma wenyujin. Other related new sesquiterpenes, neocurdione (4) and (1S, 10S), (4S, 5S)-germacrone-1(10), 4-diepoxide (6) were also isolated from this plant. The stereostructures and absolute configurations of these sesquiterpenes were established on the basis of spectroscopic and chemical data as well as X-ray crylstallographic analyses.
从姜黄精油中分离出具有7α-异丙基基团的倍半萜类化合物,如姜黄醇(1a)、姜黄酮(2a)、姜黄内酯(3)和一种新的环氧姜黄烷(1R, 10R)-环氧-(-)-1, 10-二氢姜黄酮(5a)。从该植物中还分离出其他相关的新的倍半萜类化合物,如新姜黄酮(4)和(1S, 10S)、(4S, 5S)-姜黄酮-1(10)、4-二环氧化物(6)。根据光谱和化学数据以及X射线晶体学分析,确定了这些倍半萜类化合物的立体结构和绝对构型。