“…Caraipa valioi Paula [Paula, 1970[Paula, , 1976 A trunk wood sample from the Ducke Forest Reserve , Manaus, was extracted with light petroleum . The extract, examined by preparative TLC, was shown to contain sitosterol, lupeol, betulinic acid , aliphatic ester, 1 ,5-dihydroxy-6 ,7-dimethoxyxanthone and cadensin-A.…”