1 M6M N-{(2s)-1-({(2s)-1-[(2,4-difluorobenzyl)amino]-1-oxopropan-2-yl}amino)-4-[(2s)-2-methylpiperidin-1-yl]-1,4-dioxobutan-2-yl}-5-methyl-1,2-oxazole-3-carboxamide (non-preferred name) 1.000 2 M6Y N-{(2s)-1-({(2s)-1-[(2,4-difluorobenzyl)amino]-1-oxopropan-2-yl}amino)-1,4-dioxo-4-[(2r)-2-phenylpyrrolidin-1-yl]butan-2-yl}-5-methyl-1,2-oxazole-3-carboxamide (non-preferred name) 0.814