Using COC(=O)Cc1c(C)cc(C)cc1C, COC(=O)C1(O)CCN(N(C)C)CC1 to produce Cc1cc(C)c(C2C(=O)OC3(CCN(N(C)C)CC3)C2=O)c(C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.