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Records of Natural Products
Yazarlar: Phan Minh Giang, Vu Minh Trang, Phan Tong Son, Katsuyoshi Matsunami Hideaki Otsuka
Konular:-
Anahtar Kelimeler:Mallotus barbatus ,Euphorbiaceae,Triterpenoid,3,4-seco-taraxerane.
Özet: he first occurrence of a 3,4-seco-taraxerane triterpenoid in Mallotus species (Euphorbiaceae) is reported. The triterpenoid was isolated from the leaves of the Vietnamese medicinal plant Mallotus barbatus ( Wall.) Muell.-Arg. and its structure was determined to be 3,4-seco-taraxer-14-en-3-oic acid on the basis of HR-MS and NMR spectroscopic methods. For the first time, the 1 H and 13C NMR data and stereochemistry of this compound were fully established on the basis of the 1H- 1H COSY, NOESY, HSQC, and HMBC spectroscopic data.