guanosine 5'-diphosphate 3'-diphosphate
N2-(dimethylaminomethylene)-2'-O-(tert-butyldimethylsilyl)-5'-O-(p,p'-dimethoxytrityl)guanosine 3'-[(2-cyanoethyl)-N,N-diisopropylaminophosphoramidite]
N2-(dimethylaminomethylene)-2'-O-(tert-butyldimethylsilyl)-5'-O-(p,p'-dimethoxytrityl)guanosine