Using CCOC(=O)c1c(C)nc2c(c1O)CCN2Cc1cccc(F)c1F to produce CCOC(=O)c1c(C)nc2c(ccn2Cc2cccc(F)c2F)c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.