Mycaperoxide H, a New Cytotoxic Norsesterterpene Peroxide from a Thai Marine Sponge <i>Mycale </i>sp.

Abstract

Mycaperoxide H, a new cyclic norsesterterpene peroxide, was isolated from a Thai marine sponge Mycalesp. The structure of mycaperoxide H was deduced by spectroscopic and chemical analysis. Mycaperoxide H was cytotoxic against HeLa cells with an IC(50) value of 0.8 microgram/mL.