Using COc1ccc(Cl)cc1-c1nn(CCN2C(=O)c3ccccc3C2=O)cc1NC(=O)c1cnn2cccnc12 to produce COc1ccc(Cl)cc1-c1nn(CCN)cc1NC(=O)c1cnn2cccnc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.