Using COC(=O)C1COC(C(C)(C)[C@@H](C)NC(=O)OC(C)(C)C)=N1 to produce COC(=O)c1coc(C(C)(C)[C@@H](C)NC(=O)OC(C)(C)C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.