作者:Michael K. Ameriks、Frank U. Axe、Scott D. Bembenek、James P. Edwards、Yin Gu、Lars Karlsson、Mike Randal、Siquan Sun、Robin L. Thurmond、Jian Zhu
DOI:10.1016/j.bmcl.2009.09.014
日期:2009.11
A crystal structure of 1 bound to a Cys25Ser mutant of cathepsin S helped to elucidate the binding mode of a previously disclosed series of pyrazole-based CatS inhibitors and facilitated the design of a new class of arylalkyne analogs. Optimization of the alkyne and tetrahydropyridine portions of the pharmacophore provided potent CatS inhibitors (IC(50) = 40-300 nM), and an X-ray structure of 32 revealed that the arylalkyne moiety binds in the S1 pocket of the enzyme. (c) 2009 Elsevier Ltd. All rights reserved.