... 5101 [COSTRIBUTION FROM THE SQUIBB INSTITUTE FOR ?VZEDICAL RESEARCH] Pyridine Derivatives Related to 4-Amino-N-(2-diethylaminoethyl)-benzamide (Pro- nestyll) * BY HARRY L. YALE AND JACK BERNSTEIN RECEIVED JUNE 14, 1956 A number of dialkylaminoalkylamides of pyridinecarboxylic acids are described. ... 21, 74 (1940). (2) H. McIlwain, J . Chem. Soc., 75 (1941). (3) D. B. Reisner, THIS JOURNAL, 78, 2132 (1956). ...