Using COc1cc(Cl)c(-c2ccccc2Cl)cc1NCC(=O)N1CCN(C(=O)OC(C)(C)C)CC1 to produce COc1cc(Cl)c(-c2ccccc2Cl)cc1NCC(=O)N1CCNCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.