Using CN, COC(=O)CN(CC1CCN(c2ncnc3scc(-c4ccccc4)c23)CC1)C1CCC1 to produce CNC(=O)CN(CC1CCN(c2ncnc3scc(-c4ccccc4)c23)CC1)C1CCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.