Реакция #870

Уравнение реакции

N-benzyloxycarbonyl-β-benzyl-L-aspartyl-D-valine (R)-α-methoxymethylbenzylamide

→

α-L-aspartyl-D-valine (R)-α-methoxymethylbenzylamide

Выход 70.1%

Растворители

methanol

water

Условия реакции

Обработка

1. 1
   ДругоеThe catalyst was removed by filtration
2. 2
   Концентрированиеthe resulting filtrate was concentrated under reduced pressure to 15 ml
3. 3
   ДругоеThe crystal thus precipitated
4. 4
   Другоеwas removed by filtration
5. 5
   Другоеdried

Методика

To a suspension of 6.20 g (10.5 mmols) of N-benzyloxycarbonyl-β-benzyl-L-aspartyl-D-valine (R)-α-methoxymethylbenzylamide in 200 ml of methanol and 50 ml of water was added 1.50 g of 10% Pd-carbon (water content 50%). The mixture was reduced under hydrogen under heat at 40° C. The catalyst was removed by filtration, and the resulting filtrate was concentrated under reduced pressure to 15 ml. The crystal thus precipitated was removed by filtration and dried to obtain 2.69 g (7.36 mmols, 70.0% ) of α-L-aspartyl-D-valine (R)-α-methoxymethylbenzylamide.

Источник