Using CCCc1nc(C(C)(C)O)c(C(=O)OCC)n1Cc1ccc(-c2ccccc2C(=O)O)cc1 to produce CCCc1nc(C(C)(C)O)c(C(=O)O)n1Cc1ccc(-c2ccccc2C(=O)O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.