Three new compounds from Piper montealegreanum Yuncker (Piperaceae)

Journal of the Brazilian Chemical Society

Chaves, Maria C. de O.¹  Alves, Harley da S.¹  Souza, Maria de F. V. de¹  Universidade Federal da Paraíba, João Pessoa, Brazil¹ 

关键词: Piper montealegreanum;    flavanone;    chalcone;    phenylalcanoid;   

DOI  :  10.1590/S0103-50532011000800026

学科分类：化学（综合）

来源: SciELO

【 摘 要 】

Three new compounds: two flavonoids [(S)-8-formyl-3',5-dihydroxy-7-methoxy-6methylflavanone (1) and 3'-formyl-3,4',6'-trihydroxy-2'-methoxy-5'-methylchalcone (2)] and one phenylpropanoid [ethyl 3,4-methylenedioxy-5-methoxy-7,8-dihydrocinnamate (3)] were isolated from dried branches of Piper montealegreanum. Their structures were established by UV, IR, MS, 1D and 2D (1H and 13C) NMR spectroscopic techniques, besides interpretation of spectral data (1H and 13C NMR) of methylated derivatives of 1 and 2 compounds.

【 授权许可】

Unknown