Nghiên cứu thành phần hóa học cao chiết ethyl acetat của hạt vải

The ethyl acetat extract from the seeds of Litchi chinensis Sonn. showed antimicrobial and antioxidant activities. Five compounds including 3-oxotirucalla-7,24-dien-21-oic acid (1), citrulloside (2), protocatechuic acid (3), proanthocyanidin A2 (4) and (-)-epicatechin (5) were isolated from this extract. Their structures were identifed by analysis of NMR, MS data and comparison of spectral data with the literature. Compound citrulloside (2) were isolated from Litchi chinensis for the first time.

Keywords: The seeds of Litchi chinensis Sonn., 3-oxotirucalla-7,24-dien-21-oic acid, citrulloside, protocatechuic acid, proanthocyanidin A2 , (-)-epicatechin.

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