Using CC(=O)Nc1nc(CCc2ccc(NC(=S)NC(=O)c3ccccc3)cc2)cs1 to produce CC(=O)Nc1nc(CCc2ccc(NC(N)=S)cc2)cs1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.