A New Dammarane Triterpenoid Compound Isolated From Ixora Finlaysoniana
Journal Title: IOSR Journal of Pharmacy and Biological Sciences (IOSR-JPBS) - Year 2017, Vol 12, Issue 2
Abstract
The air-dried leaves of Ixora finlaysoniana Wall. ex. Don ( family Rubiaceae) afforded a new dammarane triterpenoid named: 17β-dammara-1-one -20 ene-3β-3', 8'-dimethyloctanoate (1) together with two known saturated fatty acids capric (2) and palmitic (3) from the chloroform extract as well as three phenolic acids: gallic (4), caffeic (5), chlorogenic (6), six flavonols: Kaempferol 3-O--D-arabinopyranoside (7), afzelin (8), Kaempferol-3-O--glucopyranosyl-7-O-glucuropyranoside(9), Kaempferol-3-O--Lrhamnopyranosyl (1'''→6'')(4''-trans-p-coumaroyl)-D-glucopyranoside-7-O--L-rhamnopyranoside (10), Kaempferol-3-O--L-rhamnopyranosyl(1'''→2'')(4''-trans-p-coumaroyl)-D-arabinopyranosid-7-O--Lrhamnopyranoside (11) and kaempferol (12) in addition to two isoflavones: Biochanin A (13), Biochanin A-7- O--D-rutinoside (14) were isolated from methanol extract . All these structures were isolated for the first time from Ixora finlaysoniana leaves and were elucidated by different chromatographic and UV, extensive 1D and 2D NMR spectroscopy and MS.
Authors and Affiliations
*Magda T. Ibrahim1, Khaled Meselhy, Asmaa I. Ali3, Amany A. Sleem
Keywords
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