4.4 Article

New Pregnane Steroids from Formosan Red Alga Ceratodictyon spongiosum and Symbiotic Sponge Sigmadocia symbiotica

Journal

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
Volume 84, Issue 9, Pages 943-946

Publisher

CHEMICAL SOC JAPAN
DOI: 10.1246/bcsj.20110100

Keywords

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Funding

  1. National Science Council [NSC99-2628-B-110-002-MY3]
  2. Ministry of Education of Taiwan

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Four new pregnane steroids, ceratosteroid A (1), B (2), C (3), and D (4), were isolated from the Formosan red alga Ceratodictyon spongiosum and symbiotic sponge Sigmadocia symbiotica. The structures were elucidated by 1D and 2D NMR spectral analyses. Compounds 2 and 4 showed cytotoxicity against P-388 cell line.

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