Using O=C(O)c1cccc(-n2nnnc2S)c1, Nc1ccc(NNC=O)cc1 to produce O=CNNc1ccc(NC(=O)c2cccc(-n3nnnc3S)c2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.