Structural Determination of 3β,11β-Dihydroxyfriedelane from Maytenus Robusta (Celastraceae) by 1D and 2D NMR-Reference-Cited by-同舟云学术

Structural Determination of 3β,11β-Dihydroxyfriedelane from Maytenus Robusta (Celastraceae) by 1D and 2D NMR

Published:2012-04 Issue:4 Volume:36 Page:203-205
ISSN:1747-5198
Container-title:Journal of Chemical Research
language:en
Short-container-title:Journal of Chemical Research

Author:

Sousa Grasiely F.¹,Ferreira Fernanda L.¹,Duarte Lucienir P.¹,Silva Grácia D.F.¹,Messias Maria C.T.B.²,Filho Sidney A. Vieira¹³

Affiliation:

1. Departamento de Química, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Pampulha, CEP 31270-901, Belo Horizonte, Minas Gerais, Brazil

2. DEBIO, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro. CEP 35400-000, Ouro Preto, Minas Gerais, Brazil

3. Escola de Farmácia, Universidade Federal de Ouro Preto, Rua Costa Sena, 171, CEP 35400-000, Ouro Preto, Minas Gerais, Brazil

Abstract

A new pentacyclic triterpene, 3 β,11 β-dihydroxyfriedelane was isolated from leaves of Maytenus robusta Reissek (Celastraceae) together with other four known compounds: 3-oxofriedelane (friedelin), 3 β-hydroxyfriedelane, 3-oxo-29-hydroxyfriedelane and 3-oxo-11 β-hydroxyfriedelane. The structure and chemical conformation of the new friedelane triterpene were established by 1H and 13C NMR, including the 2D experiments, HSQC, HMBC, COSY and NOESY.

Publisher

SAGE Publications

Subject

General Chemistry

Link

http://journals.sagepub.com/doi/pdf/10.3184/174751912X13318236224684

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