Using O=C1NC(=O)C(=Cc2cnn3c(NC4CC4)cc(Cl)nc23)S1, Nc1cccc(Cl)c1 to produce O=C1NC(=O)C(=Cc2cnn3c(NC4CC4)cc(Nc4cccc(Cl)c4)nc23)S1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.