Using C=CCN(CC(=O)OCC)S(=O)(=O)N(CC=C)C(=O)OC(C)(C)C to produce C=CCN(CC=O)S(=O)(=O)N(CC=C)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.