Terpenoid constituents of Indian Glochidion species: Glochidion accuminatum and Glochidion thomsoni. Partial synthesis of glochidone

Abstract

Glochidone (1), glochidonol(2) and β-sitosterol were isolated from Glochidion accuminatum while G. thomsoni furnished glochidone (1), lup- 20(29)-ene-1β,3β-diol (3) and β-sitosterol. A partial synthesis of glochidone has been achieved in 25% yield by the 2,3-dichloro-5,6- dicyanobenzoquinone dehydrogenation of lupenone.