1 K94 4-(difluoromethyl)-L-leucine 1.000 2 0JY 4-methyl-L-leucine 0.833 3 A1ADO (4r)-5-fluoro-L-leucine 0.833 4 LEF (4s)-5-fluoro-L-leucine 0.833 5 FFL 5,5'-difluoroleucines 0.769 6 DLE D-leucine 0.750 7 EO2 4,5-dehydro-L-leucine 0.750 8 LEU Leucine 0.750 9 O0B (2~{S},3~{S})-2-azanyl-5,5,5-tris(fluoranyl)-3-methyl-pentanal 0.714