Using N, CC(C)(C)OC(=O)N1C[C@@H](N(C(=O)C(C)(C)C)[C@H]2CC[C@@H](C)CC2)C[C@H]1C(=O)O to produce CC(C)(C)OC(=O)N1C[C@@H](N(C(=O)C(C)(C)C)[C@H]2CC[C@@H](C)CC2)C[C@H]1C(N)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.