906093-30-9Relevant articles and documents
For the preparation of pyrazole derivatives
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Paragraph 0128-0130, (2017/02/24)
The present invention provides a prolinamide compound useful as a drug or the like and an industrially advantageous method for producing a piperazinyl pyrazole compound that is a production intermediate of the prolinamide compound. Specifically, the invention is a method for producing a compound represented by general formula (1) as represented by the following formula (where the symbols in the formula are the same as defined in the specification) or a salt thereof, wherein a compound represented by general formula (2) is produced, a pyrazole ring being formed via a reaction between a compound represented by general formula (3) and phosphorus pentasulfide; and, once the compound represented by general formula (2) is deprotected, a carboxylate of a compound represented by general formula (6) is produced, the compound obtained by forming a carboxylic acid and a salt.
PROCESS FOR THE PREPARATION OF 1-(3-METHYL-1-PHENYL-1H-PYRAZOL-5-YL)PIPERAZINE
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, (2015/02/25)
The present invention provides a process for the preparation of 1-(3-methyl-1- phenyl-1H-pyrazol-5-yl)piperazine of Formula (III), or salts thereof. 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 1-(3-methyl-1-phenyl-1H-pyrazol-5-yl)piperazine of Formula (III), or salts thereof.