Using O=S(=O)(O)O, CN(C)CCC=C1c2ccccc2C=Cn2cc(C(N)=O)cc21 to produce CN(C)CCC=C1c2ccccc2C=Cn2cc(C(=O)O)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.