N-(tert-ブトキシカルボニル)-L-グルタミン酸ジメチル

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。

N-(tert-ブトキシカルボニル)-L-グルタミン酸ジメチル 価格

N-(tert-ブトキシカルボニル)-L-グルタミン酸ジメチル 化学特性,用途語,生産方法

• 外観

  白色～ほとんど白色粉末～結晶

• 使用

  (R)-N-Boc-glutamic acid-1,5-dimethyl ester can be used as organic synthesis intermediates and pharmaceutical intermediates, mainly used in laboratory research and development and chemical production processes.

• 合成

  
  L-glutamic acid (10.0 g, 67.97 mmol) was dissolved in 200 mL of methanol, and SOCl2(10.85 mL, 149.53 mmol)was slowly added dropwise under an ice bath. After the addition, reflux was performed at 65 ?? C. After 2 hours, the reaction system was cooled to room temperature, and methanol was evaporated to dryness under reduced pressure to obtain a colorless viscous substance.This colorless viscous substance was dissolved in 200 mL of THF, (Boc)2O (22.25 g, 101.95 mmol) was addedunder an ice bath, and triethylamine (14.13 mL, 101.95 mmol) was slowly added dropwise.After the addition was complete, the reaction was allowed to proceed at room temperature overnight.After completion of the reaction, the solvent was distilled off under reduced pressure.The residue was dissolved in 200 mL of dichloromethane.The organic phase was washed with water (200 mL * 2), saturated citric acid solution (200 mL * 2), saturated sodium bicarbonate solution (200 mL * 2), and saturated brine (200 mL * 2) in that order.The organic phase was dried over anhydrous Na2SO4. Thefiltrate was collected by filtration, and the solvent was evaporated under reduced pressure. The residue was purified by column chromatography (petroleum ether: ethyl acetate = 4: 1 v / v) to give a colorless oily product (R)-N-Boc-glutamic acid-1,5-dimethyl ester (18.34 g, yield 98%)

N-(tert-ブトキシカルボニル)-L-グルタミン酸ジメチル 生産企業

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