title: Ecdysteroids from two Brazilian Vitex species.
abstract: A new ecdysteroid, 26-hydroxypinnatasterone (1), together with 20-hydroxyecdysone, was isolated from the stem barks of Vitex cymosa. 20-Hydroxyecdysone, ajugasterone C, ajugasterone C monoacetonide and turkesterone were isolated from the branches of V. polygama. The structure of 1 was determined by spectroscopic methods.
authors: Núcleo de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, CCS, Bloco H, Ilha do Fundão, 21.941-590, and INCQS/FIOCRUZ, Rio de Janeiro, Brazil
authors: T C
authors: TC
authors: dos Santos
authors: F
authors: F
authors: Delle Monache
authors: S G
authors: SG
authors: Leitão
mesh_terms: D026461:Ecdysteroids; D006801:Humans; D010936:Plant Extracts / Q000737:chemistry; D018547:Plant Stems; D010946:Plants, Medicinal; D013256:Steroids / Q000737:chemistry*; D020950:Vitex
chemical_list: C429123:26-hydroxypinnatasterone; D026461:Ecdysteroids; D010936:Plant Extracts; D013256:Steroids