Using CI, CCOC(=O)N1CCC2C(C1)c1cccc3c1N2C(=O)CN3C(=O)OCC to produce CCOC(=O)N1CCC2C(C1)c1cccc3c1N2C(=O)C(C)N3C(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.