Synthesis and evaluation of γ-lactam analogs of PGE2 as EP4 and EP2/EP4 agonists
摘要:
To identify topically effective EP4 agonists and EP2/EP4 dual agonists with excellent subtype selectivity, further optimization of the 16-phenyl omega-chain moiety of the gamma-lactam 5-thia prostaglandin E analog and the 2-mercaptothiazole-4-carboxylic acid analog were undertaken. Rat in vivo evaluation of these newly identified compounds as their poly (lactide-co-glycolide) microsphere formulation, from which sustained release of the test compound is possible, led us to discover compounds that showed efficacy in a rat bone fracture healing model after its topical administration without serious influence on blood pressure and heart rate. A structure-activity relationship study is also presented. (C) 2012 Elsevier Ltd. All rights reserved.
Synthesis and evaluation of γ-lactam analogs of PGE2 as EP4 and EP2/EP4 agonists
摘要:
To identify topically effective EP4 agonists and EP2/EP4 dual agonists with excellent subtype selectivity, further optimization of the 16-phenyl omega-chain moiety of the gamma-lactam 5-thia prostaglandin E analog and the 2-mercaptothiazole-4-carboxylic acid analog were undertaken. Rat in vivo evaluation of these newly identified compounds as their poly (lactide-co-glycolide) microsphere formulation, from which sustained release of the test compound is possible, led us to discover compounds that showed efficacy in a rat bone fracture healing model after its topical administration without serious influence on blood pressure and heart rate. A structure-activity relationship study is also presented. (C) 2012 Elsevier Ltd. All rights reserved.
Gold-catalyzed construction of two adjacent quaternary stereocenters via sequential C–H functionalization and aldol annulation
作者:Zhunzhun Yu、Haile Qiu、Lu Liu、Junliang Zhang
DOI:10.1039/c5cc08880a
日期:——
A novel gold-catalyzed intermolecular C–H functionalization and aldol cyclization for the construction of two adjacent quaternary centers is presented.