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Stereostructures of New Labdane-Type Diterpenes, Excoecarins F, G1, and G2 from the Wood of Excoecaria agallocha.

1999; Pharmaceutical Society of Japan; Volume: 47; Issue: 3 Linguagem: Inglês

10.1248/cpb.47.456

1347-5223

Tenji Konishi, Takao Konoshima, Yasuhiro Fujiwara, Shiu Kiyosawa, Kazumoto Miyahara, Masatoshi Nishi,

Phytochemistry and Bioactive Compounds

Three new labdane-type diterpenes, excoecarins F, G1, and G2, were isolated from resinous wood of Excoecaria agallocha LINN collected from Okinawa prefecture. Stereochemistries of the new diterpenes were determined on the basis of chemical and physicochemical evidence. Excoecarin F was found to posses a chloride element in its structure.