Synonyms: L-2-(2-Amino-1,4,5,6-tetrahydro-4-pyrimidinyl)-N-(((alpha-carboxyphenethyl)amino)carbonyl)glycyl-N-(alpha-formylphenethyl)-L-leucinamide, stereoisomer;N-{[1-(2-amino-3,4,5,6-tetrahydropyrimidin-4-yl)-2-({4-methyl-1-oxo-1-[(1-oxo-3-phenylpropan-2-yl)amino]pentan-2-yl}amino)-2-oxoethyl]carbamoyl}phenylalanine