5-(1H-Pyrrol-1-yl)-1H-benzo[d]imidazole-2-thiol

危険有害性情報のコード(GHS)

• 絵表示(GHS)

  

• 注意喚起語

  Warning

• 危険有害性情報

  H302：飲み込むと有害

  H315：皮膚刺激

  H319：強い眼刺激

  H332：吸入すると有害

  H335：呼吸器への刺激のおそれ

• 注意書き

  P261：粉じん/煙/ガス/ミスト/蒸気/スプレーの吸入を避ける こと。

  P280：保護手袋/保護衣/保護眼鏡/保護面を着用するこ と。

  P305+P351+P338：眼に入った場合：水で数分間注意深く洗うこと。次にコ ンタクトレンズを着用していて容易に外せる場合は外す こと。その後も洗浄を続けること。

5-(1H-Pyrrol-1-yl)-1H-benzo[d]imidazole-2-thiol 化学特性,用途語,生産方法

• 使用

  5-(1H-Pyrrol-1-yl)-2-mercaptobenzimidazole is a pharmaceutical intermediate compound used in the synthesis of various drugs such as ilaprazole, gastric and ulcer drugs.

• 合成

  Water (100ml) and anhydrous sodium acetate (16.02g, 0.20mole) were added, and then 2-mercapto-5- aminobenzimidazole (32.27g, 0.20mole),2,5-dimethoxytetrahydrofuran (28.4g, 0.21mole), and acetic acid (100ml) were added. Then, stirring was carried out at 5O℃ for 4 hours. The resultant product was cooled to 50C, and tetrahydrofuran (420ml) was added. The mixture was neutralized with a sodium hydroxide aqueous solution, and water (130ml) was added to carry out layer- separation. Then, an organic layer was washed with a sodium hydroxide aqueous solution. The organic layer was dried by anhydrous magnesium sulfate and concentrated, and then crystallized by ethyl acetate and n-hexane to provide a final compound, that is 5-(1H-Pyrrol-1-yl)-1H-benzo[d]imidazole-2-thiol. Yield: 35.7g (85%)

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5-(1H-Pyrrol-1-yl)-1H-benzo[d]imidazole-2-thiol 生産企業

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