Caavuranamide, a novel steroidal alkaloid from the ripe fruits of Solanum caavurana Vell. (Solanaceae).
Caavuranamide, a novel steroidal alkaloid from the ripe fruits of Solanum caavurana Vell. (Solanaceae).
Author(s): VAZ, N. P.; COSTA, E. V.; SANTOS, E. L.; MIKICH, S. B.; MARQUES, F. A.; BRAGA, R. M.; DELARMINA, C.; DUARTE, M. C. T.; RUIZ, A. L. T. G.; SOUZA, V. H. S.; MAIA, B. H. L. N. S.
Summary: A investigação fitoquímica dos frutos maduros de Solanum caavurana Vell. (Solanaceae) forneceu um novo alcaloide esteroidal do tipo espirosolano, caavuranamida, juntamente com os alcaloides 4-tomatiden-3-ona e 5?-tomatidan-3-ona. Suas estruturas foram elucidadas através de métodos espectroscópicos. As atividades antiproliferativa e antimicrobiana para o extrato etanólico e subfrações provenientes de partição e de extração ácido-base foram investigadas. A caavuranamida apresentou atividade antibacteriana similar ao controle positivo cloranfenicol contra Rhodococcus equi. Phytochemical investigation of the ripe fruits of Solanum caavurana Vell. (Solanaceae) afforded a novel steroidal alkaloid with spirosolane-type skeleton, named as caavuranamide, together with the alkaloids 4-tomatiden-3-one and 5?-tomatidan-3-one. Their structures were elucidated on the basis of spectroscopic methods. The antiproliferative and antimicrobial activities for the ethanolic extract, sub-fractions obtained from partition and acid-base treatment were also evaluated. Caavuranamide showed antibacterial activity similar to the chloramphenicol positive control against Rhodococcus equi.
Publication year: 2012
Types of publication: Journal article
Unit: Embrapa Forestry
Observation
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