Using OB(O)c1cc(Cl)ccc1Cl, CC(C)(C)OC(=O)N(N)Cc1ccccc1 to produce CC(C)(C)OC(=O)N(Cc1ccccc1)Nc1cc(Cl)ccc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.