Using CCOC(=O)c1cn2ncnc(Oc3ccc4[nH]c(C)cc4c3F)c2c1C to produce Cc1cc2c(F)c(Oc3ncnn4cc(CO)c(C)c34)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.