The Isolation and Characterization of Petrosin from Xestospongia Species, a Sponge from the Red Sea
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Date
1991-09
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Addis Ababa Universty
Abstract
The Sponge Xestospongia sp. from the Red Sea has been
ehemically investigated. The chloroform soluble portion of
the ethanolic extract of the sponge yielded P-Sl, a minor
metabolite which could not be identified, and P-46.
P-46 was obtained from the chloroform soluble portion of the
ethanolic extract by repeated VLC and CC on silica gel;
recrystallization yielded colorless rod-shaped crystals (0.002%)
P-46 was identified as petrosin on the basis of spectral
studies including IR, ElMS, 13C Nl>!R, HMQC, one and zn_1H NMR
as well as by comparison of its spectral and physical data
with those reported for petros in. The newly generated
HMQC data confirmed the previously assigned structure of
petros in unequivocally
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Keywords
Xestospongia sp