微谱求组？

13C NMR  δ 216.0, 166.8, 146.1, 145.2, 130.5, 124.6, 121.8, 119.5, 115.1, 104.9, 102.6, 82.9, 76.9, 76.4, 76.3, 74.4, 70.1, 69.7, 63.0, 63.0, 61.1, 38.1, 16.7.