| Literature DB >> 19897367 |
Haofan Wang1, Youngjoo Byun, Cyril Barinka, Mrudula Pullambhatla, Hyo-Eun C Bhang, James J Fox, Jacek Lubkowski, Ronnie C Mease, Martin G Pomper.
Abstract
We report a strategy based on bioisosterism to improve the physicochemical properties of existing hydrophilic, urea-based GCPII inhibitors. Comprehensive structure-activity relationship studies of the P1' site of ZJ-43- and DCIBzL-based compounds identified several glutamate-free inhibitors with K(i) values below 20nM. Among them, compound 32d (K(i)=11nM) exhibited selective uptake in GCPII-expressing tumors by SPECT-CT imaging in mice. A novel conformational change of amino acids in the S1' pharmacophore pocket was observed in the X-ray crystal structure of GCPII complexed with 32d. Copyright 2009 Elsevier Ltd. All rights reserved.Entities:
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Year: 2009 PMID: 19897367 PMCID: PMC2818328 DOI: 10.1016/j.bmcl.2009.10.061
Source DB: PubMed Journal: Bioorg Med Chem Lett ISSN: 0960-894X Impact factor: 2.823