摘要:
The present invention provides a process for the preparation of an N-protected (5S)-5-(1,3-thiazolidin-3-ylcarbonyl)pyrrolidin-3-one of Formula III. The invention also provides a process for the preparation of {(2S,4S)-4-[4-(3-methyl-1-phenyl-1H-pyrazol-5- yl)piperazin-1-yl]pyrrolidin-2-yl}(1,3-thiazolidin-3-yl)methanone, or salts thereof, using the N-protected (5S)-5-(1,3-thiazolidin-3-ylcarbonyl)pyrrolidin-3-one of Formula III.