Using CC(C)(C)OC(=O)N[C@H]1CNc2ccccc2NC1=O, COC(=O)CBr to produce COC(=O)CN1C(=O)[C@@H](NC(=O)OC(C)(C)C)CNc2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.