[EN] SUBSTITUTED CONDENSED PYRIMIDINE COMPOUNDS<br/>[FR] COMPOSÉS DE PYRIMIDINE CONDENSÉS SUBSTITUÉS
申请人:GRUENENTHAL GMBH
公开号:WO2014170020A1
公开(公告)日:2014-10-23
The invention relates to novel substituted condensed pyrimidine compounds of general formula (I) in which the chemical groupings, substituents and indices are as defined in the description, and to their use as medicaments, in particular as medicaments for the treatment of conditions and diseases that can be treated by inhibition of the PDE4 enzyme.
The invention relates to novel substituted condensed pyrimidine compounds of general formula (I)
in which the chemical groupings, substituents and indices are as defined in the description, and to their use as medicaments, in particular as medicaments for the treatment of conditions and diseases that can be treated by inhibition of the PDE4 enzyme.
Base-catalyzed synthesis of bicyclic 4-aminopyrimidines from the reaction of dinitriles with mononitriles
作者:Serghei Chercheja、Juliet K. Simpson、Hon Wai Lam
DOI:10.1016/j.tet.2011.03.098
日期:2011.5
A convenient method for the synthesis of bicyclic 4-aminopyrimidines is described, involving the reaction of dinitriles with mononitriles in the presence of catalytic potassium tert-butoxide. These reactions proceed via the Thorpe–Ziegler cyclization of the dinitrile to form an intermediate β-cyanoenamine, which then undergoes annulation with the mononitrile in situ.