1 649 5'-O-[(11-phenoxyundecanoyl)sulfamoyl]adenosine 1.000 2 JSA 5'-O-{[(1r)-1-hydroxydodecyl]sulfamoyl}adenosine 0.814 3 VUL [(2r,3s,4r,5r)-5-(6-aminopurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl N-decanoylsulfamate 0.810