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Pudong, China

Sheng R.,University of Michigan | Sheng R.,Zhejiang University | Sun H.,University of Michigan | Liu L.,University of Michigan | And 19 more authors.
Journal of Medicinal Chemistry | Year: 2013

We have designed, synthesized, and evaluated a series of new compounds based upon our previously reported bivalent Smac mimetics. This led to the identification of compound 12 (SM-1200), which binds to XIAP, cIAP1, and cIAP2 with Ki values of 0.5, 3.7, and 5.4 nM, respectively, inhibits cell growth in the MDA-MB-231 breast cancer and SK-OV-3 ovarian cancer cell lines with IC50 values of 11.0 and 28.2 nM, respectively. Compound 12 has a much improved pharmacokinetic profile over our previously reported bivalent Smac mimetics and is highly effective in induction of rapid and durable tumor regression in the MDA-MB-231 xenograft model. These data indicate that compound 12 is a promising Smac mimetic and warrants extensive evaluation as a potential candidate for clinical development. © 2013 American Chemical Society.

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