Insect Moulting Hormones: The Phytoecdysones of Dacrydium Intermedium

Abstract
The 2-cinnamate esters of β-ecdysone, polypodine B, and ponasterone C and the 3-p-oournarate ester of β-ecdysone have been isolated from the bark of Dacrydium intermedium as new natural ecdysone esters. β-Ecdysone, polypodine B, ponasterone C, and pterosterone also occur in this plant.