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