Using O=C(Cl)c1ccc(F)cc1F, CCOC(=O)Cc1nn(Cc2ccc(N)cc2)c2cc(F)ccc12 to produce CCOC(=O)Cc1nn(Cc2ccc(NC(=O)c3ccc(F)cc3F)cc2)c2cc(F)ccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.