(2S)-4-옥소-2-(3-티아졸리디닐카르보닐)-1-피롤리딘카르복실산tert-부틸에스테르

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 유해·위험 문구

  H315：피부에 자극을 일으킴

  H319：눈에 심한 자극을 일으킴

  H335：호흡 자극성을 일으킬 수 있음

• 예방조치문구

  P261：분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.

  P305+P351+P338：눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.

(2S)-4-옥소-2-(3-티아졸리디닐카르보닐)-1-피롤리딘카르복실산tert-부틸에스테르 화학적 특성, 용도, 생산

• 용도

  (2S)-4-Oxo-2-(3-thiazolidinylcarbonyl)-1-pyrrolidinecarboxylic Acid 1,1-Dimethylethyl Ester is an intermediate used to prepare dipeptidyl peptidase IV (DPP-IV) inhibitors.

• Synthesis

  To (2S)-1-tertbutyloxycarbonyl-4-oxa-tetramethyleneimine-2-carboxylic acid (60.0kg), thiazolidine (30.3kg) and the solution of N-diisopropylethylamine (118kg) in ethyl acetate (595kg), adds the solution of 28w% propyl phosphonous acid anhydride (cyclic trimer) in ethyl acetate (446kg) at 2 ℃-7 ℃, and reaction mixture is stirred 2 hours at 2 ℃-4 ℃.To this reaction mixture, add 15w% aqueous citric acid solution (600kg) for distributing, and ethyl acetate for water layer (271kg) is extracted.
  The ethyl acetate layer obtaining is mixed, and use successively 10w% ammonium dibasic phosphate aqueous solution (600kg) and water (300kg) washing. Ethyl acetate layer is concentrated into residual quantity 300L, normal heptane (739kg), 23 ℃ of-25 ℃ of interpolations, and is stirred this mixture 1 hour at 23 ℃-25 ℃, and stir 2 hours at 1 ℃-5 ℃.
  The crystal of precipitation is collected by filtration, is used normal heptane (164kg) washing drying under reduced pressure to produce (2S)-4-Oxo-2-(3-thiazolidinylcarbonyl)-1-pyrrolidinecarboxylic acid tert-butyl ester (67.8kg, yield 86%).

  

(2S)-4-옥소-2-(3-티아졸리디닐카르보닐)-1-피롤리딘카르복실산tert-부틸에스테르 준비 용품 및 원자재

(2S)-4-옥소-2-(3-티아졸리디닐카르보닐)-1-피롤리딘카르복실산tert-부틸에스테르 공급 업체

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