Using BrCC1CC1, CC(=O)Nc1cc(O)c(C(=O)NC2CN3CCC2CC3)cc1Cl to produce CC(=O)Nc1cc(OCC2CC2)c(C(=O)NC2CN3CCC2CC3)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.