Pomacerone, a Furanoiud Triterpene from Phellinus pomaceus

The structure of a new furanoid triterpene was determined by a combination of chemical and physical methods as 23.26-dioxo-lanosta-819) ,23,25-trien-3.22-dione(Pomacerone) ( 3 ) .Among the compounds isolated from Phellinus oma ace us'-2 are ersosta-7.22-dien-3one.ersosta-7.22-dien-38-01.friedelin, taraxerol and 0-boswellic, ursolic.phellinic (1) and javeroic (2) acids.The same fungus, this time collected in the Los Tilos woods of La Palma (Canary Islands), has now yielded a new furanoid triterpene with a lanosterol skeleton.pomacerone ( 3 ) .biogenetically related to 1 and 2 (Scheme 1) RESULTS CIND DISCUSSION Pomacerone was isolated as a white solid.mP 216-218'.lalbO t81.5' ( 2 7.74.CHCl=).Its molecular fannula.CJ0LlOJ.(hrmsl indicated the presence of a double bond which resisted hydrogenation.".-The ir spectrum had bands at 1700

Ҳали таржима қилинмаган