Document Report Card
Basic Information
ID: ALA1139919
Journal: Bioorg Med Chem Lett
Title: Beta-substituted cyclohexanecarboxamide cathepsin K inhibitors: modification of the 1,2-disubstituted aromatic core.
Authors: Robichaud J, Bayly CI, Black WC, Desmarais S, Léger S, Massé F, McKay DJ, Oballa RM, Pâquet J, Percival MD, Truchon JF, Wesolowski G, Crane SN.
Abstract: Further SAR study around the central 1,2-disubstituted phenyl of the previously disclosed Cat K inhibitor (-)-1 has demonstrated that the solvent exposed P2-P3 linker can be replaced by various 5- or 6-membered heteroaromatic rings. While some potency loss was observed in the 6-membered heteroaromatic series (IC(50)=1 nM for pyridine-linked 4 vs 0.5 nM for phenyl-linked (+/-)-1), several inhibitors showed a significantly decreased shift in the bone resorption functional assay (10-fold for pyridine 4 vs 53-fold for (-)-1). Though this shift was not reduced in the 5-membered heteroaromatic series, potency against Cat K was significantly improved for thiazole 9 (IC(50)=0.2 nM) as was the pharmacokinetic profile of N-methyl pyrazole 10 over our lead compound (-)-1.
CiteXplore: 17408953