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Process for the synthesis of N-(4-cyano-3-trifluoromethylphenyl)-3-(4-fluorophenylsulfonyl)-2-hydroxy-- 2-methylpropionamide

Image Number 5 for United States Patent #7199257.

A new process is disclosed for the synthesis of racemic or optically pure N-[4-cyano-3-trifluoro-methyl-phenyl]-3[4-fluorophenyl-sulfonyl]-2-hydrox- y-2-methylpropionamide. The process includes the formation of several novel intermediates in the synthesis.

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