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      Acyl-lupeol esters from Parahancornia amapa (Apocynaceae)

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          Abstract

          From the roots of Parahancornia amapa, family Apocynaceae, the following compounds were isolated and identified nine new and ten known 3beta-O-acyl lupeol esters, beta-sitosterol, stigmasterol, beta-sitosterone, the triterpenoids beta-amyrin, alpha-amyrin, lupeol and their acetyl derivatives. The structures of these compounds were established by spectroscopic data, mainly ¹H and 13C (HBBD and DEPT) NMR spectra. The methyl esters obtained by hydrolysis of acyl lupeol esters and methylation of the corresponding acids were characterized by MS-GC analysis.

          Translated abstract

          Das raízes de Parahancornia amapa, família Apocynaceae, foram isolados e identificados nove novos e dez conhecidos ésteres 3beta-O-acil lupeóis, os esteróides beta-sitosterol, stigmasterol e beta-sitosterona e os triterpenos beta-amirina, alfa-amirina, lupeol e seus derivados acetilados. As estruturas das substâncias foram deduzidas através da análise de dados espectroscópicos, principalmente RMN ¹H e 13C (HBBD e DEPT). Os ésteres metílicos dos ácidos obtidos através da hidrólise dos acil lupeóis e metilação foram caracterizados por CG-EM.

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          Most cited references6

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          Dictionary of Natural Products

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            J. Braz. Chem. Soc.

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              Phytochemistry

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                jbchs
                Journal of the Brazilian Chemical Society
                J. Braz. Chem. Soc.
                Sociedade Brasileira de Química (São Paulo )
                1678-4790
                August 2001
                : 12
                : 4
                : 556-559
                Affiliations
                [1 ] Universidade Federal Rural do Rio de Janeiro Brazil
                [2 ] Universidade Estadual Norte Fluminense Brazil
                [3 ] Universidade Estadual de Maringá Brazil
                Article
                S0103-50532001000400020
                10.1590/S0103-50532001000400020
                4045515e-eabd-4a49-95b1-33cdcf2576c7

                http://creativecommons.org/licenses/by/4.0/

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                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0103-5053&lng=en
                Categories
                CHEMISTRY, MULTIDISCIPLINARY

                General chemistry
                Parahancornia amapa,Apocynaceae,acyl-lupeol
                General chemistry
                Parahancornia amapa, Apocynaceae, acyl-lupeol

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