Using [NH4+], COC(=O)CC(NC(=O)[C@@H]1CCCN1C(=O)OC(C)(C)C)C(=O)c1ccc(Br)cc1 to produce COC(=O)Cc1[nH]c([C@@H]2CCCN2C(=O)OC(C)(C)C)nc1-c1ccc(Br)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.