Strongylophorines, meroditerpenoids from the marine sponge Petrosia corticata, function as proteasome inhibitors.

Bioorg Med Chem Lett

Department of Natural Medicines, Graduate School of Pharmaceutical Sciences, Kumamoto University, Oe-honmachi 5-1, Kumamoto 862-0973, Japan. Electronic address:

Published: July 2015

Two new strongylophorine derivatives, along with six known strongylophorines, were isolated from the marine sponge Petrosia corticata as proteasome inhibitors. Of these, a hemiacetal mixture of strongylophorines-13/-14 was the strongest inhibitor of the proteasome with an IC50 of 2.1μM.

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http://dx.doi.org/10.1016/j.bmcl.2015.04.075DOI Listing

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