New Diterpenes from the Caribbean Sponge Epipolasis reiswigi
摘要:
Two diterpenes, epipolone (1) and epipolol (3), produced by terpenoid pathways leading to a tricarbocyclic structure with an irregular "head to tail" isoprene configuration, have been isolated from the Caribbean marine sponge Epipolasis reiswigi collected in Puerto Rico. The structures of I and 3 were elucidated largely by ID and 2D NMR methods land chemical conversion.