A series of benzimidazole derivatives, being potent modulators of human TNFα activity, are accordingly of benefit in the treatment and/or prevention of various human ailments, including autoimmune and inflammatory disorders; neurological and neurodegenerative disorders; pain and nociceptive disorders; cardiovascular disorders; metabolic disorders; ocular disorders; and oncological disorders.
functional groups of several examples of 1-alkyl-4(3)-(1H-azolylmethyl) pyridiniumsalts1 and 2 exemplifies a concomitant application of the arenoanalogy principle and the captodative effect in organic synthesis. A remarkably driving force by the nature of non-classical acceptor and donor heteroaromatic rings is observed upon the chemical behavior of the title compounds 1 and 2, modulating the susceptibility
An Advantageous Synthesis of 2-Substituted Benzimidazoles Using Polyphosphoric Acid. 2-(Pyridyl)-1<i>H</i>-benzimidazoles, 1-Alkyl-(1<i>H</i>-benzimidazol-2-yl)pyridinium Salts, their Homologues and Vinylogues
The title 2-substituted benzimidazoles are prepared by a highly efficient one-pot procedure, cyclodehydration of the corresponding accessible carboxylic acids and 1,2-arylenediamines, using polyphosphoric acid as the catalyst and solvent in a condensation of the type found in the Phillips benzimidazole synthesis. The method has been adapted and proved to be extremely useful for 1-alkyl-(1H-benzimidazol-2-yl) pyridinium tetrafluoroborates with a methylene and vinylene interannular moiety.
The present invention is directed to a new class of therapeutic agent of the formula:
in which Y is represented by CO or CHOH; T is represented by CO or CHOH; X is represented by hydrogen or a C₁₋₆ alkyl; n is represented by the integer 3 or 4; R and R₁ are each independently represented by hydrogen, C₁₋₆ alkyl, C₁₋₆ alkoxy, halogen, -OH or -CF₃; and pharmaceutically acceptable acid addition salts thereof, which are useful as anti-psychotic agents and as analgesics.
本发明涉及一类新的治疗剂,其式如下
其中 Y 由 CO 或 CHOH 表示;T 由 CO 或 CHOH 表示;X 由氢或 C₁₋₆ 烷基表示;n 由整数 3 或 4 表示;R和R₁各自独立地由氢、C₁₋₆烷基、C₁₋₆烷氧基、卤素、-OH或-CF₃代表;以及它们的药学上可接受的酸加成盐,可用作抗精神病药和镇痛药。
Fragment-Based Discovery of 7-Azabenzimidazoles as Potent, Highly Selective, and Orally Active CDK4/6 Inhibitors
作者:Young Shin Cho、Hayley Angove、Christopher Brain、Christine Hiu-Tung Chen、Hong Cheng、Robert Cheng、Rajiv Chopra、Kristy Chung、Miles Congreve、Claudio Dagostin、Deborah J. Davis、Ruth Feltell、John Giraldes、Steven D. Hiscock、Sunkyu Kim、Steven Kovats、Bharat Lagu、Kim Lewry、Alice Loo、Yipin Lu、Michael Luzzio、Wiesia Maniara、Rachel McMenamin、Paul N. Mortenson、Rajdeep Benning、Marc O'Reilly、David C. Rees、Junqing Shen、Troy Smith、Yaping Wang、Glyn Williams、Alison J.-A. Woolford、Wojciech Wrona、Mei Xu、Fan Yang、Steven Howard
DOI:10.1021/ml200241a
日期:2012.6.14
Herein, we describe the discovery of potent and highly selective inhibitors of both CDK4 and CDK6 via structure-guided optimization of a fragment-based screening hit. CDK6 X-ray crystallography and pharmacokinetic data steered efforts in identifying compound 6, which showed >1000-fold selectivity for CDK4 over CDKs 1 and 2 in an enzymatic assay. Furthermore, 6 demonstrated in vivo inhibition of pRb-phosphorylation and oral efficacy in a Jeko-1 mouse xenograft model.