Using CCN=C=NCCCN(C)C, COCCOc1cc(N(C)S(=O)(=O)c2cccs2)c2[nH]c(C(=O)O)cc2c1 to produce COCCOc1cc(N(C)S(=O)(=O)c2cccs2)c2[nH]c(C(N)=O)cc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.