1 SUD 4-diphosphocytidyl-2-C-methyl-D-erythritol 2-phosphate 1.000 2 CDM 4-diphosphocytidyl-2-C-methyl-D-erythritol 0.842 3 V2V Cdp-ribitol 0.775 4 C2G [cytidine-5'-phosphate] glycerylphosphoric acid ester 0.763 5 YCX [[(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] [(2~{R},3~{R},4~{R},5~{S})-2,3,4,5,6-pentakis(oxidanyl)hexyl] hydrogen phosphate 0.738 6 94T [[(2~{R},3~{S},4~{R},5~{R})-5-[2,4-bis(oxidanylidene)pyrimidin-1-yl]-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl] propyl hydrogen phosphate 0.711