Using CN1C(C)(C)CC(N)CC1(C)C, CC(C)(C)OC(=O)NNc1ccc(C(=O)O)cc1 to produce CN1C(C)(C)CC(NC(=O)c2ccc(NNC(=O)OC(C)(C)C)cc2)CC1(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.