Using O=C(O)Cc1cccs1, CCCCOc1ccc(S(=O)(=O)N(CCO)Cc2ccccc2)cc1 to produce CCCCOc1ccc(S(=O)(=O)N(CCS)Cc2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.