Using CC(C)(C)OC(=O)N1CCC(C(=O)O)C1, CC(=O)NN to produce CC(=O)NNC(=O)C1CCN(C(=O)OC(C)(C)C)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.