adenosine analogs including 8-bromo- , 2'-fluoro- , 2'-azido- , 8,2'-o-cyclo- , 8,2'-s-cyclo-adenosine , arabinosyladenine and 2'-deoxyadenosine were added to the 3'-end of a-c-c by adenylation chemically followed by joining with rna ligase .
C0001443
adenosine
C0042646
arabinosyladenine