Three New Diterpenoids fromMallotus apeltaMuell.Arg.

Abstract
Three new diterpenoids, 10-hydroxy-cembrene-5-one, 6-hydroxy-cembrene-5,10-dione and 2α,4β,15,16-tetrahydroxyl-dolabradane were isolated from the petroleum ether fraction of the alcoholic extract of Mallotus apelta Muell.Arg. Their structures were determined by spectral methods.