Phytochemical Study Of Nephelium Tomentosum Leaves Cultivated In Egypt

Nephelium tomentosum (Sapindaceae) is an Australian tree, 20 to 30 feet high, with rusty velvety young branches, small flowers crowded in woolly panicles, and rather hard, depressed, indehiscent fruits. It is known as Hairy Alectryon, Hairy Bird's Eye, and Woolly Rambutan, has a synonym Alectryon tomentosus. The phytochemical screening for 70% ethanolic extract of Nephelium tomentosum lead to isolation of 4 known compounds. The structure of isolated compounds were elucidated by using spectroscopic methods, and were identified as procyanidin A2 (1), stereoisomers E and Z-coumaroyl glucoside (2), apigenin (3) and epicatechin (4). Compound (1) was isolated for the first time from this plant.

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