Using COC/C=C/c1cc(C=O)cc(CN(C(=O)OC(C)(C)C)C2CC2)c1 to produce COCCCc1cc(C)cc(CN(C(=O)OC(C)(C)C)C2CC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.