Using CCCCS, CC1(C)C(=O)N(CCCCCl)C(=O)c2ccccc21 to produce CCCCSCCCCN1C(=O)c2ccccc2C(C)(C)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.