Using CCCNN=Cc1ccc(C(=O)Nc2ccc3c(c2)CCC(CC(=O)OCC)O3)cc1 to produce CCCNN=Cc1ccc(C(=O)Nc2ccc3c(c2)CCC(CC(=O)O)O3)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.