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STEROIDS AND TRITERPENOIDS FROM GREY MANGROVE AVICENNIA MARINA

S.A. MAHERA¹, V.U. AHMAD², S.M. SAIFULLAH¹, F.V. MOHAMMAD² AND K. AMBREEN²

Abstract: Phytochemical investigation on the pneumatophores (aerial roots) of Avicennia marina (Forssk.) Vierh., resulted in the isolation of two sterols, Stigmasterol-3-O-β-D galactopyranoside (1) and Stigmasterol (2) and three triterpenoids, Lupeol (3), Taraxerol (4) and Betulinic acid (5). Compound (1) is reported for the first time from this plant, whereas, the remaining four other compounds have already been reported but not from the mangroves of Pakistan. Compound (1) was also found to possess anti-glycation activity which is reported here also for the first time.

¹Department of Botany, University of Karachi, Karachi-75270, Pakistan
²H. E. J. Research Institute of Chemistry, International Center for Chemical Sciences, University of Karachi, Karachi, Pakistan.