Using O=C([O-])[O-], C=CCn1c(C)c(S(C)=O)c2ccnc(N3CCc4ccccc4C3)c21 to produce C=CCn1c(C)c(S(C)(=O)=O)c2ccnc(N3CCc4ccccc4C3)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.