A novel oleane acid was isolated from the leaves and the fruits of Vochysia ferruginea. The structure of the new triterpenoid was elucidated by NMR spectroscopy as 2α,3β,6β-trihydroxyolean-12-en-28-oic acid (6β-hydroxymaslinic acid, 1). In addition, β-sitosterol-glucoside and three mixtures containing known triterpenoids, uvaol and erythrodiol, ursolic and oleanolic acids, 2α,3β-dihydroxyurs-12-en-28-oic acid and its respective oleanolic isomer (maslinic or crategolic acid), were isolated from the leaves and the fruits of Vochysia ferruginea. In the fruits, bellericagenin A and its (28→1) β-D-glucopyranosyl ester (bellericaside A) were present in high amount.
pentacyclic triterpenes, Vochysia ferruginea, Vochysiaceae, 6β-hydroxymaslinic acid
Publication DOI: 10.1590/S0103-50532000000300007Journal NLM ID: 101511356Publisher: Sociedade Brasileira de Quimica
Correspondence: schess@nin.ufms.br
Institutions: Escuela de Quimica, Universidad Central de Venezuela, Caracas, Venezuela, Departamento de Hidráulica e Transportes/CCET, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil, Centro Chimica dei Recettori del C.N.R., Istituto di Chimica e Chimica Clinica, U.C.S.C., Roma, Italy
Methods: 13C NMR, 1H NMR, NMR-2D, FAB-MS, TLC, ESI-MS, HPLC, extraction, CC
Found