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ECB-ART-40379
Bioorg Med Chem Lett 2007 Oct 15;1720:5543-7. doi: 10.1016/j.bmcl.2007.08.025.
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Novel steroidal saponins, Sch 725737 and Sch 725739, from a marine starfish, Novodinia antillensis.

Yang SW , Chan TM , Buevich A , Priestley T , Crona J , Reed J , Wright AE , Patel M , Gullo V , Chen G , Pramanik B , Chu M .


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Bioassay-guided fractionation of an active fraction from an extract of a marine starfish, Novodinia antillensis, led to the isolation and identification of two new saponins, Sch 725737 (1) and Sch 725739 (2). Compound 1 was identified as the NaV1.8 inhibitor with IC(50) of approximately 9 microM. The purification and the structure elucidation of these two saponins are described.

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