5-Cyano-1,4-dihydro-6-methyl-2-[phenylsulfonylmethyl]-4-(2-trifluoromethylphenyl)pyridine-3-carboxylic acid ethyl ester C??? ??, ??, ??

5-Cyano-1,4-dihydro-6-methyl-2-[phenylsulfonylmethyl]-4-(2-trifluoromethylphenyl)pyridine-3-carboxylic acid ethyl ester ?? ?? ? ???

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5-Cyano-1,4-dihydro-6-methyl-2-[phenylsulfonylmethyl]-4-(2-trifluoromethylphenyl)pyridine-3-carboxylic acid ethyl ester ?? ??