Using CC1(C)Cc2cc(C(=O)O)ccc2NC1c1cccc(N)c1, O=C(O)c1cccnc1 to produce CC1(C)Cc2cc(C(=O)O)ccc2NC1c1cccc(NC(=O)c2cccnc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.