C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 405/06 (2006.01) C07D 207/34 (2006.01) C07D 295/18 (2006.01) C07D 295/185 (2006.01)
Patent
CA 2432064
An improved process for the preparation of 5-(4--fluorophenyl) -1-[2-((2R,4R)-4-hydroxy-6-oxo-tetrahydro-pyran-2-yl)-ethyl] -2-isopropyl-4-phenyl-1H-pyrrole-3--carboxylic acid phenylamide (see above formula) by a novel synthesis is described where methyl cyanoacetate is converted in eight operations or fewer to the desired product, as well as other valuable intermediates used in the process.
L'invention concerne un procédé à utiliser pour la préparation de phénylamide d'acide 5-(4-fluorophényl)-1-[2-((2R, 4R)-4-hydroxy-6-oxo-tétrahydro-pyran-2-yl)-éthyl]-2-isopropyl-4-phényl-1 H -pyrrole-3-carboxylique, par le biais d'une nouvelle synthèse dans laquelle le cyanoacétate de méthyle est converti en huit opérations ou moins afin d'obtenir le produit voulu. L'invention concerne également d'autres intermédiaires intéressants utilisés dans ledit procédé.
Butler Donald Eugene
Dejong Randall Lee
Nelson Jade Douglas
Pamment Michael Gerard
Stuk Timothy Lee
Smart & Biggar
Warner-Lambert Company Llc
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