The synthesis of substituted benzimidazoles, 2-aminobenzimidazoles, 2-aminobenzothiazoles, and benzoxazoles is described via intramolecularcyclization of o-bromoaryl derivatives using copper(II) oxide nanoparticles in DMSO under air. The procedure is experimentally simple, general, efficient, and free from addition of external chelating ligands. It is a heterogeneous process and the copper(II) oxide
Identification of novel 1,2,3,6-tetrahydropyridyl-substituted benzo[ d ]thiazoles: Lead generation and optimization toward potent and orally active EP 1 receptor antagonists
described the design, synthesis and evaluation of a novel series of benzo[d]thiazole derivatives toward an orally active EP1 antagonist. Lead generation studies provided benzo[d]thiazole core from the four designedscaffolds. Optimization of this scaffold in terms of EP1 antagonist potency and ligand-lipophilicity efficiency (LLE; pIC50-clogP) led to a 1,2,3,6-tetrahydropyridyl-substituted benzo[d]thiazole
在这里,我们描述了针对口服活性EP1拮抗剂的一系列新的苯并[d]噻唑衍生物的设计,合成和评估。铅生成研究从四个设计的支架中提供了苯并[d]噻唑核心。根据EP1拮抗剂效能和配体亲脂性效率(LLE; pIC50-clogP)对该支架进行优化,可得到1,2,3,6-四氢吡啶基取代的苯并[d]噻唑衍生物7r(IC50 1.1nM; LLE 4.7),当在17-苯基trinor-PGE2(17-PTP)诱导的大鼠膀胱过度活动症模型中十二指肠内给药时显示出良好的药理作用。
BENZAZOLE DERIVATIVE HAVING HETEROARYL GROUP AND ORGANIC ELECTROLUMINESCENCE DEVICE INCLUDING THE SAME
申请人:LG Display Co., Ltd.
公开号:US20200010460A1
公开(公告)日:2020-01-09
Disclosed is a benzazole derivative having a heteroaryl group, wherein the benzazole derivative having the heteroaryl group is represented by Chemical Formula 1. Also disclosed is an organic electroluminescence device including an organic layer containing the benzazole derivative having the heteroaryl group:
wherein, each of Z1, X1, X2, X3, Ar1, Ar2, Ar3, m1, m2 and q is the same as defined in the specification.
Cobalt(II)-complex catalyzes efficiently the intramolecular C–N and C–O cross-couplings of Z-N′-(2-halophenyl)-N-phenylamidines and N-(2-bromophenyl)benzamides to afford the corresponding substituted benzimidazoles and benzoxazoles in the presence of K2CO3 at moderate temperature. The protocol is general, air stable and affords the products selectively in moderate to high yield.
钴(II)配合物有效催化Z - N '-(2-卤代苯基)-N-苯基am和N-(2-溴苯基)苯甲酰胺的分子内C – N和C – O交叉偶联,提供相应的取代苯并咪唑在中等温度下在K 2 CO 3存在下使用苯并恶唑和苯并恶唑。该方案是一般的,空气稳定的,并且以中等至高收率选择性地提供产物。