New Anthiarrythmic Agents. N-Aryl-8-pyrrolizidinealkanamides

Article abstract of DOI:10.1021/jm00383a005

The synthesis and antiarrhytmic activity of N-aryl-8-pyrrolizidinealkanamides are described.The targed compounds were evaluated for their ability to protect against chloroform-induced fibrillation in mice.Many of them were found to have antifibrillatory activity comparable to that of lidocaine; several are more potent than lidocaine.N-(2,6-Dimethylphenyl)-8-pyrrolizidineacetamide (6n), which was found to be more potent and less toxic (LD50) than lidocaine, also showed a long duration of action in dogs with venticular arrhythmias after oral administration.