label: 4-N-(N,N-dimethylaminomethylidenyl)-5-(3-(1-pyrenecarboxamido)propynyl)-5'-O-(4,4-dimethoxytrityl)-2'-deoxycytidine
label_lc: 4-n-(n,n-dimethylaminomethylidenyl)-5-(3-(1-pyrenecarboxamido)propynyl)-5'-o-(4,4-dimethoxytrityl)-2'-deoxycytidine