for α,β-disubstituted α,β-unsaturated esters is performed via three general and robust reaction sequences: (i) Ti−Claisen condensation (formylation) of esters to give α-formyl esters (12 examples, 60−99%), (ii) (E)- and (Z)-stereocomplementary enol p-toluenesulfonylation (tosylation) using TsCl−N-methylimidazole (NMI)−Et3N and LiOH (24 examples, 82−99%), and (iii) stereoretentive Suzuki−Miyaura cross-coupling
CARBOXAMIDE 4-[(4-PYRIDYL)AMINO]PYRIMIDINES USEFUL AS HCV INHIBITORS
申请人:Raboisson Pierre Jean-Marie Bernard
公开号:US20090247523A1
公开(公告)日:2009-10-01
The present invention relates to the use of carboxamide 4-[(4-pyridyl)amino]-pyrimidines as inhibitors of HCV replication as well as their use in pharmaceutical compositions aimed to treat or combat HCV infections.