Sarcophytonolides A-D, Four New Cembranolides from the Hainan Soft Coral Sarcophyton sp.

Four new cembranolide diterpenes, sarcophytonolides A-D (1-4), were isolated from a Hainan soft coral Sarcophyton sp. Their structures were elucidated on the basis of detailed spectroscopic analysis and by comparison with related model compounds.