Metal-Free Michael-Addition-Initiated Three-Component Reaction for the Regioselective Synthesis of Highly Functionalized Pyridines: Scope, Mechanistic Investigations and Applications
and completely regioselective three-componentsynthesis of highly functionalizedpyridines from 1,3-dicarbonyl derivatives and Michael acceptors has been achieved. Activated Michael acceptors, that is, β,γ-unsaturated α-oxo carbonyl derivatives, were utilized, allowing substitution at the 4-position and remarkable functional diversity at the 2-position of the pyridine ring. The scope and limitations
The present invention relates to pyridinone derivatives of formula (I):
wherein Z represents C
2-6
alkynyl, aryl or heteroaryl, any of which groups may be optionally substituted, and R
1
represents hydrogen, C
1-6
alkyl, C
3-7
heterocycloalkyl(C
1-6
)alkyl, di(C
1-6
)alkylamino(C
1-6
)alkyl, C
2-6
alkylcarbonyloxy(C
1-6
)alkyl or C
3-7
cycloalkoxycarbonyloxy(C
1-6
)alkyl, and pharmaceutically acceptable salts thereof, useful in the prevention and treatment of hepatitis C virus infections.
There is provided a 5,6-dihydro-4H-benzo[b]thieno-[2,3-d]azepine derivative which is useful in the treatment of respiratory syncytial virus (RSV) infection and for the prevention of disease associated with RSV infection. (Formula (1)).
Catalyst and process for hydrogenating olefinically unsaturated compound
申请人:JSR Corporation
公开号:EP0974602B1
公开(公告)日:2004-01-02
DERIVES DE DIAZEPINE CARBOXAMIDE, LEUR PROCEDE DE PREPARATION, LEUR APPLICATION A TITRE DE MEDICAMENTS, COMPOSITIONS PHARMACEUTIQUES ET LEUR UTILISATION