Steroids and flavonoids of Porcelia macrocarpa

Journal of the Brazilian Chemical Society

Chaves, Mariana H.¹  Ayres, Mariane C. Costa¹  Universidade Federal da Bahia, Salvador, Brazil¹  Universidade Federal do Piauí, Teresina, Brazil¹  Roque, Nidia F.¹  Universidade de São Paulo, São Paulo, Brazil¹ 

关键词: Porcelia macrocarpa;    Annonaceae;    steroids;    flavonoids;   

DOI  :  10.1590/S0103-50532004000400026

学科分类：化学（综合）

来源: SciELO

【 摘 要 】

Three mixtures of steroids (1a+1b, 2a+2b and 3a+3b) and two flavonoid glycosides (4 and 5) were isolated from the ethanol extract of branches of Porcelia macrocarpa (Warm.) R. E. Fries (Annonaceae). The steroids Stigmasta-4,25-dien-3-one (2a) and (22E)-Stigmasta-4,22,25-trien-3-one (2b) are news. The structures were elucidated by NMR and MS data and comparison with literature data of model compounds.

【 授权许可】

Unknown