Using O=C(c1ccc(F)cc1)C1CCN(CCCCl)CC1, O=C1CN(Cc2ccccn2)CC(=O)N1 to produce O=C(c1ccc(F)cc1)C1CCN(CCCN2C(=O)CN(Cc3ccccn3)CC2=O)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.