Preparation and application of benzophenone oxime_Kain Industrial Additive

background and overview[1] parecoxib is a specific inhibitor of cyclooxygenase-2 (cox-2), a prodrug of valdecoxib, and a coxib analgesic among anti-arthritic drugs. . parecoxib is used for the short-term treatment of postoperative pain. the sodium salt of parecoxib is used clinically as an injection. benzophenone oxime is an intermediate in the preparation of parecoxib. preparation[1]…