Using CCC(CC)(c1ccc(OCC2(C(C)(C)C)OCCO2)c(C)c1)c1cc2cc(C(=O)O)ccc2o1, COC(=O)CN to produce CCC(CC)(c1ccc(OCC2(C(C)(C)C)OCCO2)c(C)c1)c1cc2cc(C(=O)NCC(=O)O)ccc2o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.