A New Biflavonoid from Schinopsis brasiliensis(Anacardiaceae)

Journal of the Brazilian Chemical Society

David, Juceni P.¹  Lima, Luciano S.¹  Santos, Edlene O.¹  Universidade Federal da Bahia, Salvador, BR¹  Cardoso, Manuela P.¹  Instituto Federal de Educação, Ciência e Tecnologia da Bahia, Porto Seguro, BR¹  Moreira, Bruno O.¹  Instituto Federal de Educação, Ciência e Tecnologia da Bahia, Salvador, BR¹  Universidade Estadual de Feira de Santana, Feira de Santana, BR¹  Alves, Clayton Q.¹  David, Jorge M.¹ 

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

DOI  :  10.5935/0103-5053.20150101

学科分类：化学（综合）

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】

Unknown