1 CMK Cytidine 5'-monophosphate 3-deoxy-beta-D-gulo-oct-2-ulo-pyranosonic acid 1.000 2 NCC Cytidine-5'-monophosphate-5-N-acetylneuraminic acid 0.833 3 CSF Cytidine-5'-monophosphate-3-fluoro-N-acetyl-neuraminic acid 0.814 4 A1IF6 (2~{R},4~{S},5~{S},6~{S})-5-acetamido-6-[(1~{S},2~{S})-1-acetamido-2-oxidanyl-propyl]-2-[[(2~{R},3~{S},4~{R},5~{R})-5-(4-azanyl-2-oxidanylidene-pyrimidin-1-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]oxy-4-oxidanyl-oxane-2-carboxylic acid 0.756 5 FN5 Cmp-3f(a)-neu5ac 0.744