HCID 178418611, compound → HCID 178418632, compound

Participants

Reaction Steps

To a solution of 1-methyl-4-(4-hydroxy-5-benzyloxy-2-pyridylcarbonyl)piperazine (4.71 g) in methanol (300 ml) was added 10% palladium-carbon(2.35 g) in a stream of nitrogen and the mixture was hydrogenated at atmospheric pressure for 20 minutes. After the catalyst was removed by filtration, the filtrate was evaporated to dryness. The residue was recrystallized from methanol to give 1-methyl-4-(4,5-dihydroxy-2-pyridylcarbonyl)piperazine (1.32 g).

Provenance & Evidence