Using CC(C)(C)OC(=O)c1cc(C(=O)NNC(=O)c2occc2-c2ccccc2)ccc1O to produce O=C(NNC(=O)c1occc1-c1ccccc1)c1ccc(O)c(C(=O)O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.