Using O=C(CCl)c1ccc(F)cc1, CC(=O)Nc1ccc(C(=O)C2CCNCC2)cc1 to produce CC(=O)Nc1ccc(C(=O)C2CCN(CC(=O)c3ccc(F)cc3)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.