申请人:Korea Institute of Science and Technology
公开号:US05145993A1
公开(公告)日:1992-09-08
A process for the preparation d-2-(6-methoxy-2-naphthyl) propionic acid of formula (I) used as nonsteroid antipyretic analgesics, which comprises reacting oxazolidinone of formula (II) with 6-methoxy-2-naphthylacetchloride of formula (IV), methylizing [N-(6-methoxy-2-naphthyl)acetyl]-oxazolidinone of formula (V), and reacting [N-(2S)-2-(6-methoxy-2-naphthyl)-propionyl]-oxazolidinone of formula (VI) in alkali metal hydroxy, and intermediate compound obtained by the process, ]N-(6-methoxy-2-naphthyl)acetyl]-oxazolidionone of formula (V) and [N-(2S))-2-(6-methoxy-2-naphthyl)-propionyl]-oxazolidinone (VI).
一种制备式为(I)的d-2-(6-甲氧基-2-萘基)丙酸的过程,其用作非类固醇类解热镇痛剂,包括将式为(II)的噁唑烷酮与式为(IV)的6-甲氧基-2-萘基乙酰氯反应,甲基化式为(V)的[N-(6-甲氧基-2-萘基)乙酰]-噁唑烷酮,以及在碱性金属氢氧化物中反应式为(VI)的[N-(2S)-2-(6-甲氧基-2-萘基)-丙酰基]-噁唑烷酮,以及所得的中间化合物,即式为(V)的[N-(6-甲氧基-2-萘基)乙酰]-噁唑烷酮和式为(VI)的[N-(2S))-2-(6-甲氧基-2-萘基)-丙酰基]-噁唑烷酮。