Metachromins R—T, New Sesquiterpenoids from Marine Sponge Spongia sp.

Yohei Takahashi; Mika Yamada; Takaaki Kubota; Jane Fromont; Jun'ichi Kobayashi

doi:10.1248/cpb.55.1731

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Metachromins R—T, New Sesquiterpenoids from Marine Sponge Spongia sp.

Yohei Takahashi, Mika Yamada, Takaaki Kubota, Jane Fromont, Jun'ichi Kobayashi

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Keywords: metachromin R, metachromin S, metachromin T, sesquiterpenoid, sponge, Spongia sp.

JOURNAL FREE ACCESS

2007 Volume 55 Issue 12 Pages 1731-1733

DOI https://doi.org/10.1248/cpb.55.1731

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Abstract

Three new sesquiterpenoids, metachromins R—T (1—3), have been isolated from an Okinawan marine sponge Spongia sp. The structures and stereochemistry of 1—3 were elucidated on the basis of the spectroscopic data. Metachromins S (2) and T (3) showed modest cytotoxicity.

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