this was evident for enzyme substrates with 5'-hydroxyl groups [ 2'-deoxyuridine ( durd ) , 2'-deoxythymidine ( dthd ) and 5-iodo-2'-deoxyuridine ( idurd ) ] , feedback inhibitors with 5'-triphosphate substitutions ( dutp , dttp and idutp ) , and for 5'-amino derivatives [ 5'-amino-2',5'-dideoxyuridine ( 5'-adurd ) , 5'-amino-2'-5'-dideoxythymidine ( 5'-adthd ) and 5-iodo-5'-amino-2',5'-dideoxyuridine ( 5'-aidurd ) ] .
C0011535
deoxyuridine
C0020811
5-iodo-2