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Note | Special issue | Vol 67, No. 2, 2006, pp.791-796
Published online, 30th September, 2005
DOI: 10.3987/COM-05-S(T)68
Metachromins J and K, New Sesquiterpenoids from Marine Sponge Spongia Species

Yohei Takahashi, Masashi Tsuda, Jane Fromont, and Jun’ichi Kobayashi*

*Graduate School of Pharmaceutical Sciences, Hokkaido University, Kita 12 Nishi 6, Kita-ku, Sapporo, Hokkaido 060-0812, Japan


Two new cytotoxic sesquiterpenoids, metachromins J (1) and K (2), have been isolated from an Okinawan marine sponge Spongia sp. (SS-1037). The structures of 1 and 2 were elucidated on the basis of the spectroscopic data.