Using CC1(C)CC(Nc2nccc(-c3ccc(Br)s3)n2)CC(C)(C)N1, CN1CCC(=O)CC1 to produce CN1CCC(O)(c2ccc(-c3ccnc(NC4CC(C)(C)NC(C)(C)C4)n3)s2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.