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Sajan L. Shyaula, Mohammad I. Choudhary, Mangala D. Manandhar
Megastigmane, iridoid, benzyl alcohol and
phenyl propanoid glycosides from the Nepalese sandalwood Osyris Wightiana
Wall. ex Wight
Abstract
The crude ethanolic extract of the Nepalese
sandalwood Osyris wightiana Wall. ex Wight, was analyzed for its
bioactive chemical constituents by chromatographic and spectroscopic methods.
Phenyl propanoid, benzyl alcohol, iridoid and megastigmanes, were isolated from
the butanolic fraction by the successive use of column chromatography and HPLC.
They were isolated as the new source from the genus Osyris. The
structures of syringin (1) and di-O-methylcrenatin (2),
8-epideoxyloganic acid (3), citroside B (4) and roseoside (5) were
characterized on the basis of extensive spectroscopic data analysis of NMR,
mass and other spectroscopic techniques.
Key words: Osyris wightiana, phenyl
propanoid, benzyl alcohol, iridoid, megastigmane, sandalwood.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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