Cyclopentenones are synthetically versatile structures, and their straightforward construction from alkynone substrates by employing synthetically streamlining C-H insertion is conceptually appealing and of high synthetic potential. But, its implementation is very limited. Herein we report a Au-catalyzed version, which affords 2-bromocyclopent-2-en-1-ones with a broad scope and synthetically desirable
环戊烯酮是合成通用的结构,它们通过合成流线型 CH 插入从炔酮底物直接构建在概念上具有吸引力且具有高合成潜力。但是,它的实施非常有限。在此我们报告了一种 Au 催化的版本,它提供了具有广泛范围和合成所需的非对映选择性的 2-bromocyclopent-2-en-1-ones。所提出的能够插入未活化 CH 键的关键中间体是一种完全功能化的金亚乙烯基,它是通过一种新的分子间策略产生的。这种可能的金亚乙烯基的灵活获取为探索其多功能反应性提供了各种机会。
NOVEL JNK INHIBITORS
申请人:Reddy Panduranga Adulla P.
公开号:US20100298314A1
公开(公告)日:2010-11-25
Disclosed are substituted imidazo[1,2-a]pyridines, imidazo[1,2-a]pyrazines, imidazo[1,2-c]pyrimidines and imidazo[1,2-d]triazines compounds of the formula: (1.0) Also disclosed are methods for treating JNK1 and ERK mediated diseases using the compounds of formula 1.0.
Syntheses and Evaluation of Anticonvulsant Profile and Teratogenicity of Novel Amide Derivatives of Branched Aliphatic Carboxylic Acids with 4-Aminobenzensulfonamide
作者:Naama Hen、Meir Bialer、Bogdan Wlodarczyk、Richard H. Finnell、Boris Yagen
DOI:10.1021/jm100170w
日期:2010.5.27
Despite the availability of 14 new antiepileptic drugs (AEDs), about 30% of epileptic patients are not seizure-free. Consequently there is substantial need to develop new effective AEDs. A novel class of aromatic amides composed of phenylacetic acid or branched aliphatic carboxylic acids, with five to nine carbons in their carboxylic moiety, and aminobenzenesulfonamide were synthesized and evaluated in the anticonvulsant rat-maximal electroshock (MES) and subcutaneous metrazol seizure (scMet) tests. Fourteen of the synthesized amides had an anticonvulsant ED(50) of <50 mg/kg in the rat-MES test. The amides 2-methyl-N-(4-sulfamoylphenyl)butyramide (10), 2-ethyl-N-(4-sulfamoylphenyl)butyramide (11), and 3,3-dimethyl-N-(4-sulfamoylphenyl)butyramide (15) were the most potent compounds possessing MES-ED(50) values of 7.6, 9.9, and 9.4 mg/kg and remarkable protective index (PI = TD(50)/ ED(50)) values of 65.7, 50.5, and 53.2, respectively. These potent sulfanylamides caused neural tube defects only at doses markedly exceeding their effective dose. The anticonvulsant properties of these compounds make them potential candidates for further development as new, potent, and safe AEDs.
Guye; Jeanpretre, Bulletin de la Societe Chimique de France, <hi>1895</hi>, vol. <3>13, p. 184