C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 311/58 (2006.01)
Patent
CA 2573547
This invention relates to a method for photoracemizing enantiomers of a substituted 2-trifluoromethyl-2H-chromene-3-carboxylic acid or ester, a substituted 2-trifluoromethyl-1,2-dihydro-quinoline-3-carboxylic acid or ester, a substituted 2-trifluoromethyl-2H-thiochromene-3-carboxylic acid or ester, or a pharmaceutically acceptable salt of the acids or esters, using a high intensity UV light source.
L'invention concerne un procédé de photoracémisation d'énantiomères d'un acide ou d'un ester 2-trifluorométhyle-2H, chromène-3-carboxylique substitué, d'un acide ou d'un ester 2-trifluorométhyle-1,2-dihydro-quinoline-3-carboxylique substitué, d'un acide ou d'un ester 2-trifluorométhyle-2H-thiochromène-3-carboxylique, ou d'un sel pharmaceutiquement acceptable desdits acides ou desdits esters, à l'aide d'une source lumineuse U.V. à haute intensité.
Carter Jeffery S.
Chekal Brian P.
Phillips Wendell Gary
Smart & Biggar
Warner-Lambert Company Llc
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