Using CC(=O)OC(C)=O, CC(C)(F)Cn1c(CO)nc2cnc3cccnc3c21 to produce CC(=O)OCc1nc2cnc3cccnc3c2n1CC(C)(C)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.