Using CCCS(=O)(=O)N(c1cc(F)c(F)c(C(=O)c2ccc3ncc(Cl)nc3c2)c1F)S(=O)(=O)CCC, COCCO to produce CCCS(=O)(=O)Nc1cc(F)c(F)c(C(=O)c2ccc3ncc(OCCOC)nc3c2)c1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.