Using CCOC(=O)c1oc(NC(C)(C)C)nc1C(F)(F)F, C1CCOC1 to produce CCOC(=O)c1oc(N(C)C(C)(C)C)nc1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.