EthanediaMide불순물A

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Warning

• 유해·위험 문구

  H302：삼키면 유해함

  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.

EthanediaMide불순물A 화학적 특성, 용도, 생산

• 용도

  tert-Butyl [(1R,2S,5S)-2-Amino-5-[(dimethylamino)carbonyl]cyclohexyl]carbamate Oxalate is a starting material and useful building block of various pharmaceuticals.

• 용도

  Tert-Butyl [(1R,2S,5S)-2-amino-5-[(dimethylamino)carbonyl]cyclohexyl]carbamate oxalate is also called EthanediaMide iMpurity A. It is a starting material and useful component of various pharmaceuticals. As an organic synthesis intermediate and pharmaceutical intermediate. It could be used in the synthesis and research of the EthanediaMide.

• Synthesis

  Tert-Butyl [(1R,2S,5S)-2-amino-5-[(dimethylamino)carbonyl]cyclohexyl]carbamate oxalate is prepared by the reaction of benzyl N-[(1S,2R,4S)-2-{[(tert-butoxy)carbonyl]amino}-4-(dimethylcarbamoyl)cyclohexyl]carbamate and Oxalic Acid. The steps are as follows:
  Pd-C (230 mg) was added to a solution (35 mL) of benzyl t-butyl{(1S,2R,4S)-4-[(dimethylamino)carbonyl]cyclohexan-1,2-diyl}biscarbamate (2.3 g) in ethanol, and the mixture was stirred in a hydrogen atmosphere for 16 hours. Pd-C was removed by filtration, and the filtrate was concentrated under reduced pressure. Ethyl acetate (20 mL) and anhydrous oxalic acid (493.6 mg) were added to the residue, followed by stirring at room temperature for 17 hours. The formed crystals were recovered by filtration, to thereby yield 1.93 g of the Tert-Butyl [(1R,2S,5S)-2-amino-5-[(dimethylamino)carbonyl]cyclohexyl]carbamate oxalate.
  

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