The present invention provides novel pyrimidine amines of formula (I) which are potent inhibitors of spleen tyrosine kinase, and are useful in the treatment and prevention of diseases mediated by said enzyme, such as asthma, COPD and rheumatoid arthritis.
A copper-catalysed one-pot hydroboration/azidation/cycloaddition reaction of alkynes
作者:Hamilton C. Zimba、Lucas L. Baldassari、Angélica V. Moro
DOI:10.1039/d2ob00635a
日期:——
on the development of a catalytic one-pot process, showing the challenges and advantages encountered all over the way. At the end, we developed a regioselective, environmentally friendly, and operationally simple method to explore the reactivity of functionalized propargylic alkynes through three copper-catalysed reactions in a single reaction vessel. The sequence consisted of a hydroboration, azidation