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ID: ALA4673232
Journal: Bioorg Med Chem Lett
Title: Optimization of a series of potent, selective and orally bioavailable SYK inhibitors.
Authors: Grimster NP,Gingipalli L,Barlaam B,Su Q,Zheng X,Watson D,Wang H,Simpson I,Pike A,Balazs A,Boiko S,Ikeda TP,Impastato AC,Jones NH,Kawatkar S,Kemmitt P,Lamont S,Patel J,Read J,Sarkar U,Sha L,Tomlinson RC,Wang H,Wilson DM,Zehnder TE,Wang L,Wang P,Goldberg FW,Shao W,Fawell S,Dry H,Dowling JE,Edmondson SD
Abstract: Spleen tyrosine kinase (SYK) is a non-receptor cytosolic kinase. Due to its pivotal role in B cell receptor and Fc-receptor signaling, inhibition of SYK has been targeted in a variety of disease areas. Herein, we report the optimization of a series of potent and selective SYK inhibitors, focusing on improving metabolic stability, pharmacokinetics and hERG inhibition. As a result, we identified 30, which exhibited no hERG activity but unfortunately was poorly absorbed in rats and mice. We also identified a SYK chemical probe, 17, which exhibits excellent potency at SYK, and an adequate rodent PK profile to support in vivo efficacy/PD studies.
CiteXplore: 32717371