title: Molluscicidal constituents of Marsypianthes chamaedrys.
abstract: Marsypianthes chamaedrys is a common herb that occurs in the North and Northeast regions of Brazil. Phytochemical studies showed this plant to be rich in triterpenoids. The hexane extract of M. chamaedrys yielded, after chromatographic separations, two mixtures: the first containing monohydroxylated-compounds (alpha-amyrin, beta-amyrin, lupeol and germanicol) and the second, dihydroxylated compounds (chamaedrydiol, castanopsol, 2alpha-hydroxylupeol and epigermanidiol). Molluscicidal tests were performed for the crude hexane extract and for mixtures I and II. Mixture II showed high activity.
authors.affiliation: Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Centro de Ciências da Saúde, Bloco A, 2 degrees andar, sala 4, Ilha da Cidade Universitária, Rio de Janeiro, Brazil, CEP = 21941-500.
authors.forename: F
authors.initials: F
authors.lastname: de Sousa Menezes
authors.forename: C
authors.initials: C
authors.lastname: Santos da Silva
authors.forename: N A
authors.initials: NA
authors.lastname: Pereira
authors.forename: F J
authors.initials: FJ
authors.lastname: Matos
authors.forename: A S
authors.initials: AS
authors.lastname: Borsatto
authors.forename: M A
authors.initials: MA
authors.lastname: Coelho Kaplan
mesh_terms: D000818:Animals; D001700:Biomphalaria / Q000502:physiology*; D001938:Brazil; D008401:Gas Chromatography-Mass Spectrometry; D019686:Lamiaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008975:Molluscacides / Q000302:isolation & purification*; D010936:Plant Extracts / Q000633:toxicity; D010947:Plants, Toxic / Q000737:chemistry*
chemical_list: D008975:Molluscacides; D010936:Plant Extracts