Using COCCN(Cc1ccc(Nc2cc(Cl)nn(C)c2=O)nc1)C(=O)OC(C)(C)C to produce COCCN(C)Cc1ccc(Nc2cc(Cl)nn(C)c2=O)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.