5-(4'-Methylbiphenyl-2-yl)-1-trityl-1H-tetrazole

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Danger

• 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.

  P271：옥외 또는 환기가 잘 되는 곳에서만 취급하시오.

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

  P302+P352：피부에 묻으면 다량의 물로 씻으시오.

  P304+P340：흡입하면 신선한 공기가 있는 곳으로 옮기고 호흡하기 쉬운 자세로 안정을 취하시오.

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

  P312：불편함을 느끼면 의료기관(의사)의 진찰을 받으시오.

  P403+P233：용기는 환기가 잘 되는 곳에 단단히 밀폐하여 저장하시오.

5-(4'-Methylbiphenyl-2-yl)-1-trityl-1H-tetrazole 화학적 특성, 용도, 생산

• 화학적 성질

  Off-white Solid

• 용도

  An intermediate in the preparation of labelled Candesartan.

• Synthesis

  5-(4'-Methylbiphenyl-2-yl)-1-trityl-1H-tetrazole is prepared by the reaction of trityl chloride and 2-(tetrazol-5-yl)-4'-methyl-1,1'-biphenyl. The specific synthesis steps are as follows:
  Dissolve compound 2 (200 g) with stirring at 40°C 700mL of acetone, Aqueous sodium hydroxide solution (40.67 g sodium hydroxide dissolved in 160 mL water) is added, Continue stirring for 1h, A solution of triphenylchloromethane in acetone (270.8 g of triphenylmethyl chloride dissolved in 800 mL of acetone) was initially added dropwise. The solid was added dropwise and gradually evolved into a white turbid liquid. The reaction was monitored by TLC until it was completely filtered off and washed with water to give a solid as intermediate 3. The solid was blow dried at 50°C to give white intermediate 3 (385 g), yield: 95.2%, HPLC: 99.44%.
  

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