Using CCOC(=O)C(=O)c1csc(N)n1, S=C=Nc1ccccc1 to produce CCOC(=O)C(=O)c1csc(NC(=S)Nc2ccccc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.