Using OCCC12CC3CC(CC(C3)C1)C2, O=C(Cn1ncc(Br)c(Br)c1=O)NCc1ccncc1 to produce O=C(Cn1ncc(OCCC23CC4CC(CC(C4)C2)C3)c(Br)c1=O)NCc1ccncc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.