The Journal of Organic Chemistry

Thurberin, a new pentacyclic triterpene from organ-pipe cactus

S Jolad, C Steelink

Index: Jolad,S.D.; Steelink,C. Journal of Organic Chemistry, 1969 , vol. 34, # 5 p. 1367 - 1369

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Citation Number: 22

Abstract

A chemical analysis of the alcoholic extract of the fresh cortical (pulp) portion of the Organ Pipe cactus (Lemaireocereus thurberi) affords, besides thurberogenin (I), two more triterpenes, betulin (11) and a new tritepne, thurberin (111), hitherto unidentified in this species. The new triterpene belongs to the lupeol class and is an is+ mer of betulin. Based on the mass, nmr, spectral, and optical rotatory dispersion (ORD) data, the hydroxyl ...