Abstract
Author(s): Maryam Ahmed*, Ghazala H. Rizwani, Faryal Vali Mohammed, Iffat Mahmood, Viqar uddin Ahmed and Shaukat Mahmud
An ornamental and medicinal plant Holoptelea integrifolia (Roxb) Planch(Ulmaceae) has been collected from Pakistan. From plant bark, two medicinal pentacyclic triterpenodis,betulinic acid (3β-Hydroxy-lup-20(29)-en-28-oic acid) and betulin (Lup-20(29)-ene-3β, 28-diol) were isolated for the first time from the bark of the plant. The structure of compounds 1 and 2 wereascertained via advanced spectroscopic technique, as these structures were also compared with authenticated structures of betulin and betulinic acid and come across with similar data.