Chemical constituents from the stem of Brosimum potabile (Moraceae)
| Autor: | Antônio Flávio de Carvalho Alcântra, Izelene Felício da Silva Xavier, Viviane Gomes da Costa Abreu, Marilda Conceição da Silva, Dorila Piló-Veloso, Rozângela Manfrini Magalhães, Patrícia Machado de Oliveira |
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| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | Acta Amazonica v.40 n.4 2010 Acta Amazonica Instituto Nacional de Pesquisas da Amazônia (INPA) instacron:INPA |
| Popis: | Three coumarins, 5-methoxypsoralene, xanthyletin, and (-)-marmesin, have been isolated from the ethanolic extract of the stem of the Amazonian plant Brosimum potabile. The structures were determined on the basis of NMR analyses and by comparison with spectroscopic data in the literature. The analysis of the hexane fractions by GC-MS in EIMS mode suggested the presence of (1-methylpentyl)-benzene; α,α-dimethyl-4-(1-methylethyl)-benzenemethanol; 1-methyl-3,5-bis(1-methylethyl)-benzene; urs-12-ene; chola-5,22-dien-3β-ol; cholesta-4,6-dien-3β-ol; sitosteryl 9(Z)-octadecenoate; cholesta-5,22-dien-3β-ol; cholesta-4,6,22-trien-3-one; and cholesta-4,22-dien-3-one. NMR data of other hexane fractions indicated the presence of 3β-acetoxy-lup-12,20(29)-diene; 3β-acetoxy-olean-12-ene; 3β-acetoxy-urs-12-ene; and adian-5-ene. All these compounds are first described in B. potabile. |
| Databáze: | OpenAIRE |
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