Using NC(=O)OCC1=Nc2cccc3cccc(c23)N1, O=c1ccc2n3c(nc4cccc1c4=2)=COC3 to produce O=C(O)NCC1=Nc2cccc3cccc(c23)N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.