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New anti-emetic flavanone glycoside from cotoneaster affinis

Author(s): J.S.Jangwan, M.P.Tiwari

The present paper deals with the isolation Characterization of a new compound along with Genkwanin and Kaempferol fromthe sapwood and antiematic activity determination of 1. Fromthemethanolic extract, genkwanin, kampferol, naringenin and a newderivatives 1 were isolated. The structure of the known compounds were determined by spectroscopic methods and by direct comparision [6] (m.m.p., co-TLC, Superimposible IR) with authentic samples. The new compound 1 was purified by acetylated and characterized with the help of NMR and MS datas.

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