Using C1CCOC1, O=C1CN=C(c2ccccc2Cl)c2cc(Br)c(O)cc2N1 to produce COCCOc1cc2c(cc1Br)C(c1ccccc1Cl)=NCC(=O)N2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.