Using Fc1nccnc1C1(F)CCOCC1, Oc1ccc(Nc2nc3ccccc3s2)cc1 to produce FC1(c2nccnc2Oc2ccc(Nc3nc4ccccc4s3)cc2)CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.