Using COCCBr, CC(C)c1nnc2ccc(-c3cn(C4CCNCC4)nc3-c3ccc(F)cc3F)nn12 to produce COCCN1CCC(n2cc(-c3ccc4nnc(C(C)C)n4n3)c(-c3ccc(F)cc3F)n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.