反应详情

A mixture of dibenzyl N-(N-butanoyl-L-valyl)-L-glutamate (613 mg) and palladium black (50 mg) in methanol (50 ml) was subjected to catalytic hydrogenation under atmospheric pressure. After the reaction mixture was filtered, the filtrate was concentrated under reduced pressure to give a residue which was recrystallized from petroleum ether to afford N-(N-butanoyl-L-valyl)-L-glutamic acid as crystals (343 mg).

1. filtrationAfter the reaction mixture was filtered
2. concentrationthe filtrate was concentrated under reduced pressure
3. customto give a residue which
4. customwas recrystallized from petroleum ether