Design, Synthesis, and Biological Evaluation of 3-(Imidazo[1,2-a]pyrazin-3-ylethynyl)-4-isopropyl-N-(3-((4-methylpiperazin-1-yl)methyl)-5-(trifluoromethyl)phenyl)benzamide as a Dual Inhibitor of Discoidin Domain Receptors 1 and 2
摘要:
Discoidin-domain receptors 1 and 2 (DDR1 and DDR2) are new potential targets for anti-inflammatory-drug discovery. A series of heterocycloalkynylbenzimides were designed and optimized to coinhibit DDR1 and DDR2. One of the most promising compounds, Sn, tightly bound to DDR1 and DDR2 proteins with K-d values of 7.9 and 8.0 nM; potently inhibited the kinases with IC50 values of 9.4 and 20.4 nM, respectively; and was significantly less potent for a panel of 403 wild-type kinases at 1.0 mu M. DDR1- and DDR2-kinase inhibition by 5n was validated by Western-blotting analysis in primary human lung fibroblasts. The compound also dose-dependently inhibited lipopolysaccharide (LPS)-induced interleukin 6 (IL-6) release in vitro and exhibited promising in vivo anti-inflammatory effects in an LPS-induced-acute-lung-injury (ALI) mouse model. Compound 5n may serve as a lead compound for new anti-inflammatory drug discovery.
was developed by using a C(sp3)−H activation/naphthol dearomatization approach. This bimolecular domino reaction of two aryl halides was realized through a sequence of cyclometallation‐facilitated C(sp3)−H activation, biaryl cross‐coupling, and naphthol dearomatization, thus rendering the rapidassembly of a new class of spirocyclic molecules in good yields with broad functional‐group tolerance. Preliminary
A new palladium-catalyzed C(sp3)–H amination reaction has been developed. 1-(tert-Butyl)-2-iodobenzene and its derivatives undergo palladium-catalyzed C–H activation to form palladacycles. The palladacycles are aminated with diaziridinone to form indolines as the final products. The reaction represents a new method for the synthesis of 3,3-disubstituted indolines, which are essential structural motifs
123. Optical studies of 2,2′-di-t-butylbiphenylcarboxylic acids and of 2′-t-butylbiphenyl-2-carboxylic acid
作者:Mary S. Lesslie、Ursula J. H. Mayer
DOI:10.1039/jr9610000611
日期:——
265. Optical studies of 2′-substituted 2-t-butylbiphenyls. Part II. 2-Nitro-2′-t-butylbiphenyl-4-carboxylic acid and 8-o-t-butylphenyl-1-naphthoic acid