Imrecoxib, one of 3,4-diaryl-3-pyrrolin-2-ones, was synthesized by the Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, which is a specific inhibitor of cyclooxygenase-2 in developing.

• 艾瑞昔布(imrecoxib)是我国研发的一个环氧化酶-2(COX-2)特异性抑制剂，它属于含有磺酰基的吡咯烷酮类化合物。