Using COCCBr, COc1cc2ncnc(Nc3cccc(Cl)c3F)c2cc1OCC1CCNCC1 to produce COCCN1CCC(COc2cc3c(Nc4cccc(Cl)c4F)ncnc3cc2OC)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.