Using CC(=O)N1CCN(c2cc(C)c3nc4c(C)cccc4[s+]c3c2)CC1 to produce CCCCN(C)c1cc(C)c2nc3c(C)cc(N4CCN(C(C)=O)CC4)cc3[s+]c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.