To a suspension of 2.1 g (60% in oil, 0.052 mole) of sodium hydride in 125 ml of dimethylformamide heated to 60??? C. under a nitrogen gas blanket was added a solution of 2.65 g (0.026 mole) of N-methyl-3-pyrrolidinol and 5.0 g (0.026 mole) of 3,5-dichloropyridine-4-carboxylic acid in 40 ml of dimethylformamide dropwise at such a rate as to maintain 60??? C. Subsequent to this addition, the mixtur