CHEMICAL CONSTITUENT OF THE LEAVESAND STEMS OF PHARBATIS NIL

Tóm tắt

The phytochemical investigation of the leaves and stems of Pharbatis nil led to the isolation of nine compounds (1–9). The structures of these compounds were determined through 1D- and 2D-NMR spectroscopic analysis, MS, and comparison with published spectroscopic data. The isolated compounds include uracil (1), thymidine (2), ethyl α-L-arabinofuranoside (3), ethyl-β-D-galactofuranoside (4), vitexin (5), β-sitosterol (6), stigmast-4-en-3-one (7), stigmast-4-en-3,6-dione (8), and daucosterol (9). Compounds 2, 4, 5, 7, and 8 were reported for the first time in this species.