Using COC(=O)[C@H]1CC[C@H](N2CCN(C(=O)OC(C)(C)C)CC2=O)CC1 to produce CC(C)(C)OC(=O)N1CCN([C@H]2CC[C@H](C(=O)O)CC2)C(=O)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.