The present invention provides a process for the preparation of (1S)-2,3,4,6-tetra- O-acetyl-1,5-anhydro-1-[3-[[5-(4-fluorophenyl)-2-thienyl]methyl]-4-methylphenyl]-D- glucitol of Formula III. The invention also provides a process for the purification of canagliflozin using (1S)-2,3,4,6-tetra-O-acetyl-1,5-anhydro-1-[3-[[5-(4-fluorophenyl)-2-5 thienyl]methyl]-4-methylphenyl]-D-glucitol of Formula III.
本发明提供了一种制备(1S)-2,3,4,6-四-O-乙酰基-1,5-脱
水-1-[3-[[5-(4-
氟苯基)-2-
噻吩基]甲基]-4-甲基苯基]-
D-葡萄糖醇的方法,其
化学式为III。该发明还提供了一种利用
化学式III中的(1S)-2,3,4,6-四-O-乙酰基-1,5-脱
水-1-[3-[[5-(4-
氟苯基)-2-5-
噻吩基]甲基]-4-甲基苯基]-
D-葡萄糖醇纯化
卡格列净的方法。