COELENTERAZINE ANALOGUES AND COELENTERAMIDE ANALOGUES
申请人:JNC Corporation
公开号:US20140316137A1
公开(公告)日:2014-10-23
Coelenterazine analogs with different luminescence properties from conventional ones and coelenteramide analogs with different fluorescence properties from conventional ones have been desired. The invention provides coelenterazine analogs modified at the 8-position of coelenterazine and coelenteramide analogs modified at the 2- or 3-position of coelenteramide.
4-Aminobenzotriazole (ABTA) as a Removable Directing Group for Palladium-Catalyzed Aerobic Oxidative C–H Olefination
作者:Zhuo Wang、Xiaohan Ye、Meina Jin、Qi Tang、Shengyu Fan、Zhiguang Song、Xiaodong Shi
DOI:10.1021/acs.orglett.2c00285
日期:2022.5.6
4-Aminobenzotriazole (ABTA) was applied as an effective removabledirectinggroup (DG) in Pd-catalyzed C–H activation for the first time. Compared with the widely applied pyridine and quinoline analogs, ABTA showed significantly improved reactivity, achieving aerobic oxidative C–H olefination in excellent yields (up to 95% vs <50% with other reported DGs under identical conditions). Using this new
Coelenterazine analogues and coelenteramide analogues
申请人:JNC Corporation
公开号:US09056840B2
公开(公告)日:2015-06-16
Coelenterazine analogs with different luminescence properties from conventional ones and coelenteramide analogs with different fluorescence properties from conventional ones have been desired. The invention provides coelenterazine analogs modified at the 8-position of coelenterazine and coelenteramide analogs modified at the 2- or 3-position of coelenteramide.
Radical Cyclization Approach to Spirocyclohexadienones
作者:Felix González-López de Turiso、Dennis P. Curran
DOI:10.1021/ol0477226
日期:2005.1.1
Cyclization of an aryl radical at the ipso position of a p-O-aryl-substituted acetamide or benzamide generates oxindoles or quinolones bearing spirocyclohexadienone rings. This versatile reaction is applied to formal syntheses of the vasopressin inhibitor SR121463A and aza-galanthamine.