1 SSJ 2'-deoxy-5-[(1-hydroxy-2,2,5,5-tetramethyl-2,5-dihydro-1h-pyrrol-3-yl)ethynyl]uridine 5'-(tetrahydrogen triphosphate) 1.000 2 0R5 2'-deoxy-5-[(4-ethynylphenyl)ethynyl]uridine 5'-(tetrahydrogen triphosphate) 0.773 3 0R6 2'-deoxy-5-[(4-ethynylphenyl)ethynyl]cytidine 5'-(tetrahydrogen triphosphate) 0.733 4 TTP Thymidine-5'-triphosphate 0.725 5 XRF 1-{2-deoxy-5-O-[(S)-hydroxy{[(S)-hydroxy(phosphonooxy)phosphoryl]oxy}phosphoryl]-beta-L-erythro-pentofuranosyl}-5-methylpyrimidine-2,4(1h,3h)-dione 0.725 6 0R7 [[(2s,5r)-5-[4-azanyl-5-[2-(4-ethynylphenyl)ethynyl]-2-oxidanylidene-pyrimidin-1-yl]oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate 0.711 7 B7A 2'-deoxy-5-formyluridine 5'-(tetrahydrogen triphosphate) 0.707 8 HXB 4'-methylthymidine 5'-(tetrahydrogen triphosphate) 0.707 9 M5T 5-methyluridine triphosphate 0.707 10 D3T 2',3'-dideoxy-thymidine-5'-triphosphate 0.700 11 D4T 2',3'-dehydro-2',3'-deoxy-thymidine 5'-triphosphate 0.700 12 DUT Deoxyuridine-5'-triphosphate 0.700