Реакция #159092

Уравнение реакции

2-Aza-bicyclo[2.2.1]heptane-2,3-dicarboxylic acid 2-tert-butyl ester

triethylamine

Pyrrolidine-1,2-dicarboxylic acid 2-{2-[7-(2-bromo-acetyl)-dibenzofuran-3-yl]-2-oxo-ethyl}ester 1-tert-butyl ester

→

2-Aza-bicyclo[2.2.1]heptane-2,3-dicarboxylic acid 3-(2-{7-[2-(1-tert-butoxycarbonyl-pyrrolidine-2-carbonyloxy)-acetyl]-dibenzofuran-3-yl}-2-oxo-ethyl) ester 2-tert-butyl ester

Выход 93.2%

Растворители

acetonitrile

DMF

Условия реакции

Обработка

1. 1
   Другоеthe solvent was evaporated
2. 2
   workup.ADDITIONThe mixture was diluted with EtOAc
3. 3
   Промывкаwashed with water and brine
4. 4
   Сушкаwas dried with sodium sulfate
5. 5
   КонцентрированиеConcentration

Методика

To the solution of 2-Aza-bicyclo[2.2.1]heptane-2,3-dicarboxylic acid 2-tert-butyl ester (155 mg, 0.64 mmol) and triethylamine (77 μl, 0.55 mmol) in acetonitrile (3 ml) was added a solution of Pyrrolidine-1,2-dicarboxylic acid 2-{2-[7-(2-bromo-acetyl)-dibenzofuran-3-yl]-2-oxo-ethyl}ester 1-tert-butyl ester (200 mg, 0.37 mmol) in DMF (6 ml). The mixture was stirred for 10 hours, and the solvent was evaporated. The mixture was diluted with EtOAc, and washed with water and brine, and was dried with sodium sulfate. Concentration gave 2-Aza-bicyclo[2.2.1]heptane-2,3-dicarboxylic acid 3-(2-{7-[2-(1-tert-butoxycarbonyl-pyrrolidine-2-carbonyloxy)-acetyl]-dibenzofuran-3-yl}-2-oxo-ethyl) ester 2-tert-butyl ester (243 mg). m/z: 703.3 (M−1), 727.2 (M+Na)

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