Using O=C1CCCC(=O)N1, COc1cc2c(Nc3ccc(Cl)cc3F)ncnc2cc1OCCBr to produce COc1cc2c(Nc3ccc(Cl)cc3F)ncnc2cc1OCCN1C(=O)CCCC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.