[EN] IMIDAZO[1,2-A]PYRAZINE MODULATORS OF THE ADENOSINE A2A RECEPTOR<br/>[FR] MODULATEURS DE 5,6-BICYCLO-IMIDAZO[1,2-A]PYRAZINE DU RÉCEPTEUR A2A DE L'ADÉNOSINE
申请人:SELVITA S A
公开号:WO2019002606A1
公开(公告)日:2019-01-03
The present invention relates to the compound of formula (I) and salts, stereoisomers, tautomers, isotopologues,or N-oxides thereof. The present invention is further concerned with the use of such a compound or salt, stereoisomer, tautomer, isotopologues,or N-oxide thereof as medicament and a pharmaceutical composition comprising said compound.
robust tool for bond formation. While ketyl radical reactivity of aldehydes by photoredox has been well-established, herein, we have now revealed a pathway for umpolung addition of aldehydes with or without external reductant. Hence, the reductive alkylations and challenging benzylations of nitrogen heteroarenes (i.e., Minisci reactions) are enabled by the bromide-promoted visible light-mediated photocatalysis
A visible‐light‐mediated photoredoxMinisci‐typealkylation with ethers as the alkylating reagent is reported. User‐friendly LiBr has been found to be the key promoter for this radical coupling. The reaction exhibits broad functional group tolerance for both C2 and C4 couplings/alkylations of quinolines. Mechanistic studies suggest that the bromide additive could not only dramatically enhance the reaction