Using CCOC(=O)c1cn2ncnc(N)c2c1-c1ccc(NC(=O)OC(C)(C)C)c(F)c1 to produce CCOC(=O)c1cn2ncnc(N)c2c1-c1ccc(N)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.