Using Nc1cccc(Cl)c1, CC(C)(C)OC(=O)Nc1cc(Cl)nc2c(C=O)cnn12 to produce Nc1cc(Nc2cccc(Cl)c2)nc2c(C=O)cnn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.