1 DXY N-({4-[(1s)-4-(2,4-diamino-6-oxo-1,6-dihydropyrimidin-5-yl)-1-(methylsulfanyl)butyl]phenyl}carbonyl)-L-glutamic acid 1.000 2 DXZ N-({4-[(1r)-4-(2,4-diamino-6-oxo-1,6-dihydropyrimidin-5-yl)-1-(methylsulfanyl)butyl]phenyl}carbonyl)-L-glutamic acid 1.000 3 KEU N-{4-[(1r)-4-[(2r,4r,5s)-2,4-diamino-6-oxohexahydropyrimidin-5-yl]-1-(2,2,2-trifluoro-1,1-dihydroxyethyl)butyl]benzoyl}-D-glutamic acid 0.775