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