Using CCn1ncc2c(NCC3CCCCC3)c3cc(O)ccc3nc21, CCOC(=O)C(C)Br to produce CCn1ncc2c(NCC3CCCCC3)c3cc(OC(C)C(=O)O)ccc3nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.