[EN] DEHYDROHALOGENATION PROCESS FOR THE PREPARATION OF INTERMEDIATES USEFUL IN PROVIDING 6,6-DIMETHYL-3-AZABICYCLO-[3.1.0]-HEXANE COMPOUNDS<br/>[FR] PROCÉDÉ DE DÉSHYDROHALOGÉNATION POUR LA PRÉPARATION D'INTERMÉDIAIRES UTILES POUR FOURNIR DES COMPOSÉS DE 6,6-DIMÉTHYL-3-AZABICYCLO[3.1.0]HEXANE
申请人:SCHERING CORP
公开号:WO2009073380A1
公开(公告)日:2009-06-11
The present invention provides for a process for preparing the pyrrole compounds of Formula Va and Vb.
本发明提供了一种制备公式Va和Vb的吡咯化合物的过程。
DEHYDROHALOGENATION PROCESS FOR THE PREPARATION OF INTERMEDIATES USEFUL IN PROVIDING 6,6-DIMETHYL-3-AZABICYCLO-[3.1.0]- HEXANE COMPOUNDS
申请人:Kwok Daw-long
公开号:US20110092716A1
公开(公告)日:2011-04-21
The present invention provides for a process for preparing the pyrrole compounds of Formula Va and Vb.
本发明提供了一种制备式Va和Vb的吡咯化合物的过程。
Amino acid salts of and methods for preparing antihypercholesterolemic tetrazole compounds
申请人:BRISTOL-MYERS SQUIBB COMPANY
公开号:EP0658550A2
公开(公告)日:1995-06-21
Compounds of the formula
wherein R1 and R4 each are independently hydrogen, halogen, C1 -4 alkyl, C1 -4 alkoxy or trifluoromethyl; R2, R3, R5 and R6 each are independently hydrogen, halogen, C1 -4 alkyl or C1 -4 alkoxy; R7 is an amino acid such as arginine or lysine; and tet is
where R8 is hydrogen, C1-4 alkyl, C1-4 alkoxyalkyl or (2-methoxy-ethoxy)methyl; methods of preparing compouds of formula
and intermediates. The compounds of formula I and II are inhibitors of the enzyme 3-hydroxy-3-methyl-glutaryl coenzyme A (HMG-CoA) reductase and are useful in the treatment of hypercholesterolemia, hyper- lipoproteinemia and atherosclerosis.
The invention relates to a continuous process for enantioselective catalytic hydrogenation of an alpha ketocarbonyl compound such as alpha ketoesters and alpha ketolactones to produce an alpha hydroxy carbonyl compound.