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  • Title: Design, synthesis and biological characterization of selective LIMK inhibitors.
    Author: Boland S, Bourin A, Alen J, Geraets J, Schroeders P, Castermans K, Kindt N, Boumans N, Panitti L, Vanormelingen J, Fransen S, Van de Velde S, Defert O.
    Journal: Bioorg Med Chem Lett; 2015 Sep 15; 25(18):4005-10. PubMed ID: 26233434.
    Abstract:
    Inhibitors of LIM kinases are considered of interest for several indications, including elevated intraocular pressure (IOP), cancer, or infection by HIV-1. LX-7101 (Lexicon Pharmaceuticals) was advanced to Phase-I clinical trials as an IOP-lowering agent for treatment of glaucoma. We here discuss the design, synthesis and evaluation of LIMK inhibitors based on a pyrrolopyrimidine scaffold, which represent close analogs of LX-7101. Exploration of structure-activity relationships revealed that many of such compounds, including LX-7101, cause potent inhibition of LIMK1 and LIMK2, and also ROCK2 and PKA. Molecular variations around the various structural elements of LX-7101 were attempted. Substitution on position 6 of the pyrrolopyrimidine scaffold led to the identification of LX-7101 analogs displaying good selectivity versus ROCK, PKA and Akt.
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