Using CC(=O)OC(C)=O, Cc1nc2c(OCc3c(Cl)ccc(N(C)C(=O)CN)c3Cl)cccn2c1Br to produce CC(=O)NCC(=O)N(C)c1ccc(Cl)c(COc2cccn3c(Br)c(C)nc23)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.