Disclosed are an advantageous method of industrial production of tert-butyl 3-oxobutylate, which is a useful intermediate for synthesis, characterized by reacting tert-butyl alcohol with diketene in the presence of 4-(tertiary amino) pyridine, and an industrially advantageous method of producing cephalosporin compounds or pharmaceutically acceptable salts thereof, using tert-butyl 3-oxobutylate as an intermediate.
本发明涉及一种工业生产叔丁基
3-氧代丁酸酯的优化方法,该方法是通过在4-(三级胺)
吡啶的存在下,将
叔丁醇与二酮反应而得到的,该物质是一种有用的合成中间体。同时,本发明还涉及一种利用叔丁基
3-氧代丁酸酯作为中间体,工业上优化的
头孢菌素化合物或其药学上可接受的盐的生产方法。