Using CC(C)(C)OC(=O)Nc1ccc2onc(OCC(COC(N)=O)NC(=O)OC(C)(C)C)c2c1 to produce NC(=O)OCC(N)COc1noc2ccc(N)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.