Using COc1ccc2c(=O)c(=O)c(=O)c2c1, NNC(=O)Nc1ccccc1 to produce COc1ccc2c(=O)c(=NNC(=O)Nc3ccccc3)c(=O)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.