110513-71-8

Upstream product

• 1312904-06-5 N-(2-chlorophenyl) pyrimidine-4-carboxamide 
• 31462-59-6 pyrimidine-4-carboxylic acid 
• 95-51-2 o-chloroaniline 

Relevant academic research and scientific papers

Discovery of a Novel Series of Tankyrase Inhibitors by a Hybridization Approach

A structure-guided hybridization approach using two privileged substructures gave instant access to a new series of tankyrase inhibitors. The identified inhibitor 16 displays high target affinity on tankyrase 1 and 2 with biochemical and cellular IC50 values of 29 nM, 6.3 nM and 19 nM, respectively, and high selectivity toward other poly (ADP-ribose) polymerase enzymes. The identified inhibitor shows a favorable in vitro ADME profile as well as good oral bioavailability in mice, rats, and dogs. Critical for the approach was the utilization of an appropriate linker between 1,2,4-triazole and benzimidazolone moieties, whereby a cyclobutyl linker displayed superior affinity compared to a cyclohexane and phenyl linker.

Preclinical Lead Optimization of a 1,2,4-Triazole Based Tankyrase Inhibitor

Tankyrases 1 and 2 are central biotargets in the WNT/β-catenin signaling and Hippo signaling pathways. We have previously developed tankyrase inhibitors bearing a 1,2,4-triazole moiety and binding predominantly to the adenosine binding site of the tankyrase catalytic domain. Here we describe a systematic structure-guided lead optimization approach of these tankyrase inhibitors. The central 1,2,4-triazole template and trans-cyclobutyl linker of the lead compound 1 were left unchanged, while side-group East, West, and South moieties were altered by introducing different building blocks defined as point mutations. The systematic study provided a novel series of compounds reaching picomolar IC50 inhibition in WNT/β-catenin signaling cellular reporter assay. The novel optimized lead 13 resolves previous atropisomerism, solubility, and Caco-2 efflux liabilities. 13 shows a favorable ADME profile, including improved Caco-2 permeability and oral bioavailability in mice, and exhibits antiproliferative efficacy in the colon cancer cell line COLO 320DM in vitro.

1,2,4-TRIAZOLE DERIVATIVES AS TANKYRASE INHIBITORS

The present invention relates to compounds of formula (I), tautomers, stereoisomers, pharmaceutically acceptable salts and pro-drugs thereof, to processes for their preparation, to pharmaceutical compositions containing such compounds and to their use in therapy wherein a dashed line indicates an optional bond; X represents: a 5- or 6-membered, unsaturated heterocyclic group optionally substituted by one or more (e.g. 1, 2 or 3) substituents independently selected from halogen (i.e. F, C1, Br, I), C1-6 alkyl (e.g. C1-3 alkyl), C1-6 haloalkyl (e.g. C1-3 haloalkyl), C1-6 alkoxy (e.g. C1-3 alkoxy), -CN, -NO2, -N(R)2, and -SO2R (where each R is independently H or C1-6 alkyl, e.g. H or C1-3 alkyl); a C3-5 cycloalkyl group optionally substituted by one or more (e.g. 1 or 2) substituents independently selected from C1-6 alkyl (preferably C1-3 alkyl), C1-6 haloalkyl (e.g. C1-3 haloalkyl), and C1-6 alkoxy (e.g. C1-3 alkoxy); or an aryl group optionally substituted by one or more (e.g. 1, 2 or 3) substituents independently selected from halogen (i.e. F, C1, Br, I), C1-6 alkyl (e.g C1-3 alkyl), C1-6 haloalkyl (e.g. C1-3 haloalkyl), and C1-6 alkoxy (e.g. C1-3 alkoxy); Y represents: an aryl or heteroaryl group optionally substituted by one or more (e.g. 1, 2 or 3) substituents independently selected from halogen (i.e. F, Cl, Br, I), C1-6 alkyl (e.g C1-3 alkyl), C1-6 haloalkyl (e.g. C1-3 haloalkyl), and C1-6 alkoxy (e.g. C1-3 alkoxy); a 5- or 6-membered, saturated heterocyclic group optionally substituted by one or more (e.g. 1, 2 or 3) substituents independently selected from C1-6 alkyl (preferably C1-3 alkyl), C1-6 haloalkyl (e.g. C1-3 haloalkyl), and C1-6 alkoxy (e.g. C1-3 alkoxy); or a C3-6 cycloalkyl group optionally substituted by one or more (e.g. 1 or 2) substituents independently selected from C1-6 alkyl (preferably C1-3 alkyl), C1-6 haloalkyl (e.g. C1-3 haloalkyl), and C1-6 alkoxy (e.g. C1-3 alkoxy); and Z represents: an aryl group optionally substituted by one or more (e.g. 1, 2 or 3) substituents independently selected from halogen (i.e. F, Cl, Br, I), C1-6 alkyl (e.g. C1-3 alkyl), C1-6 haloalkyl (e.g. C1-3 haloalkyl), C1-6 alkoxy (e.g. C1-3 alkoxy), -CN, -NO2, -N(R)2, and -SO2R (where each R is independently H or C1-6 alkyl, e.g. H or C1-3 alkyl); or an unsaturated, 5- to 10-membered mono- or bicyclic heterocyclic group optionally substituted by one or more (e.g. 1, 2 or 3) substituents independently selected from halogen (i.e. F, C1, Br, I), C1-6 alkyl (e.g. C1-3 alkyl), C1-6 haloalkyl (e.g. C1-3 haloalkyl), C1-6 alkoxy (e.g. C1-3 alkoxy), -CN, -NO2, -N(R)2, and -SO2R (where each R is independently H or C1-6 alkyl, e.g. H or C1-3 alkyl). These compounds find particular use in the treatment and/or prevention of a disease or disorder responsive to inhibition of tankyrase 1 and/or 2, for example a disorder which is mediated by tankyrase 1 and/or 2 such as cancer.

TRIAZOLE DERIVATIVES AS TANKYRASE INHIBITORS

The present invention relates to compounds of formula (I'), tautomers, stereoisomers, and pharmaceutically acceptable salts thereof, to processes for their preparation, to pharmaceutical formulations containing such compounds and to their use in therapy (I') (wherein: Z represents an optionally substituted, 5- or 6-membered unsaturated heterocyclic group comprising at least one nitrogen atom; L represents a 4-, 5- or 6-membered cycloalkyl group, preferably a cyclobutyl group; each R1 independently represents F, CI, Br, I, C1-3 alkyl, C1-3 haloalkyl (e.g. -CF3), -CN, -OH or -NO2, preferably F, CI, Br or 1, e.g. CI or F; each R2independently represents F, CI, Br, I, C1-3 alkyl, -CN, -OH or -NO2, preferably F, CI, Br, I or -CN, e.g. F or -CN; X represents -NR3- or -0-; R3 represents H or a C1-3 alkyl group (e.g. methyl); n is an integer from 0 to 5, preferably 0 to 3, more preferably 0, 1 or 2, e.g 1; and m is an integer from 0 to 5, preferably 0 to 3, more preferably 0, 1 or 2, e.g. 0 or 1). These compounds find particular use in the treatment and/or prevention of conditions or diseases which are affected by over-activation of signaling in the WNT pathway and increased presence of nuclear β-catenin. For example, these may be used in preventing and/or retarding proliferation of tumor cells and metastasis, for example carcinomas such as colon carcinomas.