Other chemical constituents isolated from Solanum crinitum Lam. (Solanaceae)

Journal of the Brazilian Chemical Society

Braz-Filho, Raimundo¹  Cornelius, Marli T. F.¹  Silva, Tania M. S. da¹  Siston, Ana P. N.¹  Carvalho, Mário G. de¹  Universidade Federal Rural do Janeiro, Seropédica, Brazil¹  Alves, Kelly Z.¹  Sant'Anna, Carlos M. R.¹  Alves, Cassia C. F.¹  Universidade Estadual de Campinas, Campinas, Brazil¹  Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Brazil¹  Eberlin, Marcos N.¹  Neto, Mario B.¹ 

关键词: Solanum crinitum;    Solanaceae;    steroidal glycoalkaloids;    flavonoids;    cinnamic acids.;   

DOI  :  10.1590/S0103-50532010001200007

学科分类：化学（综合）

来源: SciELO

【 摘 要 】

The phytochemical investigation of Solanum crinitum Lam led to the isolation from the fruit trichomes of four flavonoids, tiliroside (1), astragalin (2), kaempferol (3), biochanin A-7-O-β-D-apiofuranosyl-(1→5)-β-D-apiofuranosyl-(1→6)-β-D-glucopyranoside (7), along with 4-hydroxybenzoic acid (12), and four cinnamic acid derivatives, cis-and trans-coumaric acids (10 and 11) and cis-and trans-ethyl coumarate (8 and 9). Three tri-glycosyl-steroidal alkaloids, solamargine (13), 20-epi-solamargine (14) and solasonine (16) were isolated from the methanolic extract of the green fruits. The derivatives 3,5,7,4'-tretra-O-methyl-kaempferol (4), 3,7,4'-tri-O-methyl-kaempferol (5), 3,7,4'-tri-O-methyl-5-O-acetyl-kaempferol (6), the peracetyl-epi-solamargine (15) and peracetyl-solasonine (17) were prepared. The structures were established through the analysis of their spectral data. The complete 1H and 13C NMR data assignments of the new peracetyl derivatives of the alkaloids were made.

【 授权许可】

Unknown