Using Cc1nc(N)n[nH]1, CCOC(=O)C(C(=O)OCC)c1cccc(F)c1 to produce Cc1nc2nc(O)c(-c3cccc(F)c3)c(O)n2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.