Regiochemical control of the ring-opening of 1,2-epoxides by means of chelating processes. 3. Aminolysis and azidolysis of the cis- and trans-oxides derived from 4-(benzyloxy)cyclohexene
摘要:
The previously observed regiocontrol of the ring-opening of epoxides bearing a remote polar group such as the title compounds (1 and 2) can also be achieved by metal-assisted methods for the direct aminolysis and azidolysis of epoxides. The appropriate use of the metal-assisted chelating or nonchelating procedures in the ring-opening of cis-epoxide 1 effects practically complete regiocontrol of these reactions, thus leading to regioalternating processes for the aminolysis and the azidolysis of 1.
Regiochemical control of the ring-opening of 1,2-epoxides by means of chelating processes. 3. Aminolysis and azidolysis of the cis- and trans-oxides derived from 4-(benzyloxy)cyclohexene
摘要:
The previously observed regiocontrol of the ring-opening of epoxides bearing a remote polar group such as the title compounds (1 and 2) can also be achieved by metal-assisted methods for the direct aminolysis and azidolysis of epoxides. The appropriate use of the metal-assisted chelating or nonchelating procedures in the ring-opening of cis-epoxide 1 effects practically complete regiocontrol of these reactions, thus leading to regioalternating processes for the aminolysis and the azidolysis of 1.
Discovery of trisubstituted cyclohexanes as potent CC chemokine receptor 2 (CCR2) antagonists
作者:Robert J. Cherney、John B. Brogan、Ruowei Mo、Yvonne C. Lo、Gengjie Yang、Persymphonie B. Miller、Peggy A. Scherle、Bruce F. Molino、Percy H. Carter、Carl P. Decicco
DOI:10.1016/j.bmcl.2008.12.062
日期:2009.2
A series of trisubstituted cyclohexanes was designed, synthesized and evaluated as CC chemokine receptor 2 (CCR2) antagonists. This led to the identification of two distinct substitution patterns about the cyclohexane ring as potent and selective CCR2antagonists. Compound 36 exhibited excellent binding (CCR2 IC50 = 2.4 nM) and functional antagonism (calcium flux IC50 = 2.0 nM and chemotaxis IC50 = 5