HRID1852185

反应详情

EQUATION

反应方程式

HRID 1852185 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

To a solution of (2S,4R)-1-((3R)-2-((tert-butoxycarbonyl)amino)-3,5-dimethylnon-8-enoyl)-4-hydroxypyrrolidine-2-carboxylic acid (700 mg, 1.6 mmole) in DMSO was added 1-chloro-4-ethoxyisoquinoline (420 mg, 2.0 mmole), prepared above, followed by t-BuOK (1M sol. in THF, 8 mL, 8 mmole) at room temperature under nitrogen atmosphere. The reaction mass was stirred at room temperature for 4 h. The reaction mass was quenched with aqueous citric acid solution and extracted with ethyl acetate. The combined organic layer was dried over anhydrous Na2SO4 and concentrated under reduced pressure to get crude compound. The crude compound was purified by combiflash to get desired product (2S,4R)-1-((3R)-2-((tert-butoxycarbonyl)amino)-3,5-dimethylnon-8-enoyl)-4-((4-ethoxyisoquinolin-1-yl)oxy)pyrrolidine-2-carboxylic acid (600 mg, 64%) as off-white solid. MS: MS m/z 585.1 (M++1).

WORKUP

后处理

  1. customprepared above,
  2. customThe reaction mass was quenched with aqueous citric acid solution
  3. extractionextracted with ethyl acetate
  4. dry with materialThe combined organic layer was dried over anhydrous Na2SO4
  5. concentrationconcentrated under reduced pressure
  6. customto get crude compound
  7. customThe crude compound was purified by combiflash