Using COC(=O)/C(=C/c1ccc(OCCc2nc(-c3ccccc3)oc2C)c2ccsc12)OC to produce CO/C(=C\c1ccc(OCCc2nc(-c3ccccc3)oc2C)c2ccsc12)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.