Using Cc1cc(-n2ncc3cc4c(cc32)CCCC2(C4)OCCO2)ccn1 to produce Cc1cc(-n2ncc3cc4c(cc32)CCCC(=O)C4)ccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.