- GAP-134 ([2S,4R]-1-[2-aminoacetyl]4-benzamidopyrrolidine-2-carboxylic acid) prevents spontaneous ventricular arrhythmias and reduces infarct size during myocardial ischemia/reperfusion injury in open-chest dogs. Hennan, J.K., Swillo, R.E., Morgan, G.A., Rossman, E.I., Kantrowitz, J., Butera, J., Petersen, J.S., Gardell, S.J., Vlasuk, G.P. J. Cardiovasc. Pharmacol. Ther. (2009)