Using C1COCCO1, CC(C)(C)OC(=O)N[C@@H]1CC[C@@H](C(=O)O)OC1 to produce COC(=O)[C@@H]1CC[C@@H](N)CO1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.