SUCCULENT EUPHORBIAS OF NIGERIA .2. ALIPHATIC DITERPENE ESTERS OF LATTICES OF EUPHORBIA-POISONII PAX AND EUPHORBIA-UNISPINA NE BR

Google Scholar
  • 1 January 1977
    • journal article
    • research article
    • Vol. 40  (3) , 225-229
Abstract
Methanol-preserved latices of E. poisonii and E. unispina were examined for irritant principles. Six esters of the parent diterpene 12-deoxyphorbol were identified by spectroscopic and chemical methods. Three were the aliphatic esters 12-deoxyphorbol-13-(2-methylbutyrate), 12-deoxyphorbol-13-angelate and 12-deoxyphorbol-13-isobutyrate, and a further 3 compounds were the 20-acetyl equivalents. Isobutyrate esters were absent from the latex of E. unispina, an observation of possible value in the identification of these 2 similar species.

This publication has 1 reference indexed in Scilit: