Using O=C(O)CN1C(=O)CC1SCc1ccccc1, NCCCCCCc1ccc(F)cc1F to produce O=C(CN1C(=O)CC1SCc1ccccc1)NCCCCCCc1ccc(F)cc1F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.