title: A new minor dimmeric ester from seeds of Cassia fistula L. (Leguminosae).
abstract: Bioactivity-guided fractionation of n-hexane phase from MeOH extract of the seeds of Cassia fistula L. (Leguminosae) yielded two bioactive substances against Cladosporium cladosporioides and C. sphaerospermum. After spectroscopic analysis, these compounds were characterised as the known benzyl 2-hydroxy-3,6-dimethoxybenzoate and its dimer dibenzyl 2,2'-dihydroxy-3,6,3″,6″-tetramethoxy-biphenyl-1,1'-dicarboxylate, which showed a new structural arrangement.
authors.affiliation: Departamento de Ciências Exatas e da Terra, Universidade Federal de São Paulo, Campus Diadema, Diadema, SP, Brazil. psartorelli@unifesp.br
authors.forename: Patrícia
authors.initials: P
authors.lastname: Sartorelli
authors.forename: João Henrique G
authors.initials: JH
authors.lastname: Lago
authors.forename: Rodrigo L O R
authors.initials: RL
authors.lastname: Cunha
authors.forename: Rodrigo O S
authors.initials: RO
authors.lastname: Kitamura
authors.forename: Maria Claudia M
authors.initials: MC
authors.lastname: Young
mesh_terms: D000935:Antifungal Agents / Q000032:analysis* / Q000302:isolation & purification / Q000494:pharmacology; D001938:Brazil; D002366:Cassia / Q000737:chemistry*; D005591:Chemical Fractionation; D002851:Chromatography, High Pressure Liquid; D002963:Cladosporium / Q000187:drug effects; D019281:Dimerization; D004952:Esters / Q000032:analysis* / Q000302:isolation & purification / Q000494:pharmacology; D006586:Hexanes; D062385:Hydroxybenzoates / Q000032:analysis; D000432:Methanol; D008968:Molecular Conformation; D015394:Molecular Structure; D012639:Seeds / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D000935:Antifungal Agents; D004952:Esters; D006586:Hexanes; D062385:Hydroxybenzoates; C466369:benzyl 2-hydroxy-3,6-dimethoxybenzoate; D000432:Methanol