ISOLATION AND STRUCTURE ELUCIDATION OF SOME COMPOUNDS FROM THE LEAVES OF Premna lucidula Miq.

Abstract

Four compounds including friedelinol (1), ethyl p-methoxycinamate (2),
β-sitosterol (3), and 7-oxo-beta-sitosterol (4) have been isolated from the nhexan extract of the leaves of Premna lucidula Miq. collected in Thai Nguyen
Provice, Vietnam. The structures of these compounds have been identified based
on Nuclear Magnetic Resonance (NMR) and compared with spectral data
published in the references. Compounds ethyl p-methoxycinamate (2) and 7-
oxo-beta-sitosterol (4) were isolated from the genus Premna for the first time,
while compounds friedelinol (1) and β-sitosterol (3) were reported from P.
lucidula for the first time.