Using CC(C)(C)OC(=O)N1CC(C(=O)O)C1, O[C@@H]1CCNC1 to produce CC(C)(C)OC(=O)N1CC(C(=O)N2CC[C@@H](O)C2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.