The present invention is related to a new process for the preparation of 4-methyloxazole-5-carboxylic ester, which is a valuable intermediate in the synthesis of pyridoxine (vitamin B6). The present invention is also related to a new intermediate for the preparation of 4-methyloxazole-5-carboxylic ester and processes for the preparation thereof.
本发明涉及一种制备4-甲氧基噁
唑-5-羧酸酯的新工艺,该酯是合成
吡哆醇(
维生素B6)的有价值中间体。本发明还涉及一种制备4-甲氧基噁
唑-5-羧酸酯的新中间体及其制备工艺。