Using COC1=C2C(=C3CN(C(=O)OC(C)(C)C)CCC3N2C)C(C)(C(=O)[O-])C=C1 to produce COc1ccc(C(=O)O)c2c3c(n(C)c12)CCN(C(=O)OC(C)(C)C)C3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.