Using CC(=O)NC1CCS(=O)(=O)c2sc(S(N)(=O)=O)cc21 to produce NC1=C2C=C(S(N)(=O)=O)SC2S(=O)(=O)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.