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A New Triterpenoid from Terminalia glaucescens (Planch. ex Benth.)

Olapeju Aiyelaagbe, Olaoluwa Olaoluwa, Ibrahim Oladosu and Simon Gibbons

Department of Chemistry, University of Ibadan, Ibadan, 200284, Nigeria

Centre for Pharmacognosy and Phytotherapy, The School of Pharmacy, University of London, 29-39 Brunswick Square, London, WC1N 1AX, UK

Abstract: Phytochemical investigation of the root extract of Terminalia glaucescens afforded three known compounds, ellagic acid 1, arjungenin 2, hypatic acid 3 and and a new triterpenoid named glaucescic acid, 2α,3α,6α,23-tetrahydroxyolean-12-en-28-oic acid 4. The structure and relative configuration of this new compound was elucidated on the basis of spectroscopic data, especially 2D NMR techniques.

Keywords: Terminalia glaucescens; Combretaceae; 2,3,8-tri-O-methylellagic acid; 2α,3α,6α,23-tetrahydroxyolean-12-en-28-oic acid. © 2014 ACG Publications. All rights reserved.