A New Biflavonoid from Schinopsis brasiliensis(Anacardiaceae)

Journal of the Brazilian Chemical Society

Manuela P. Cardoso¹  Luciano S. Lima¹  Juceni P. David¹  Bruno O. Moreira¹  Edlene O. Santos¹  Jorge M. David¹  Clayton Q. Alves¹ 

关键词: biflavanone;    bichalcone;    Schinopsis brasiliensis;    Anacardiaceae;   

DOI  :  10.5935/0103-5053.20150101

来源: SciELO

【 摘 要 】

Phytochemical investigation of the MeOH extract of Schinopsis brasiliensis Engl. stems led to the isolation of the new biflavanone (2R*,3R*,2''R*,3''R*)-7-hydroxy-4'-methoxy-flavanone- (3→3'')-3''',7''-dihydroxy-4'''-methoxy-flavanone and 4,2',4'-trihydroxychalcone-(3→O→4'')- 2''',4'''-dihydroxychalcone, whereas methyl gallate, gallic acid, (6R,9R)-megastigma-4-en-3-one- 9-O-β-glucopyranoside, quercetin-3-O-β-D-xylopyranoside and tricetin-3'-O-β-D-glucopyranoside were isolated from the MeOH extract of leaves. Their chemical structures were elucidated using spectroscopic methods and comparison with the literature data. Both biflavonoids showed weak inhibition activities of acetyl and butyrylcholinesterase enzymes when compared with eserine.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License