171852-98-5 1H-Pyrrole-3-carboxylic acid, 4,5-dihydro-5-(3-amino-2-cyano-3-(4-morpholinyl)-2-propenylidene)-2-methyl-4-oxo-, ethyl ester 2-Methyl-3-ethoxycarbonyl-5-(2-cyano-3-amino-3-morpholinoprop-2-enylidene)-2-pyrrolin-4-one