Using COC(=O)N1CC=C(c2cccc(S(C)(=O)=O)c2)CC1 to produce COC(=O)N1CCC(c2cccc(S(C)(=O)=O)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.