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- W2374451259 abstract "The structural determination of two more new tetracyclic triterpene aglycones,picfeltarragenins Ⅴ(5) and Ⅵ(8),isolated from antitumour fraction of Picria fel-tarrae Lour extract was reported.On the basis of their spectroscopic data(UV,IR,~1H NMR,~(13)C NMR and MS) and chemical reactions,the structure of picfeltarraegenin Ⅴ and Ⅵ were assigned as 5 and 8 respectively.The structure of 5 was correlated with that of picfeltarraegenin Ⅰ(1) through the chromic acid oxidation of the diacetate 7 of compound 1 which yieldedaprodact shown to be identical with the diacetate 6 of compound 5." @default.
- W2374451259 created "2016-06-24" @default.
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- W2374451259 date "1982-01-01" @default.
- W2374451259 modified "2023-09-23" @default.
- W2374451259 title "STUDIES ON THE CONSTITUENTS OF PICRIA FEL-TARRAE LOUR II. THE STRUCTURE OF PICFELTARRAEGENINS II AND III" @default.
- W2374451259 hasPublicationYear "1982" @default.
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