Using CN(C)C=O, O=C(O)c1cccc(Sc2ccc3c(-c4ccccc4)cc4nncn4c3c2)c1 to produce CN(C)C(=O)c1cccc(Sc2ccc3c(-c4ccccc4)cc4nncn4c3c2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.