Hydrochloric Acid → HCID 22721777, compound

Participants

Reaction Steps

A mixture of 4-(6-chloronaphth-2-ylsulphonyl)-2-methoxy-carbonyl-1-[1-(4-pyridyl)piperidin-4-ylcarbonyl]piperazine (0.362 g), 1N aqueous sodium hydroxide solution (1.3 ml) and methanol (5 ml) was stirred and heated to reflux for 30 minutes. The mixture was acidified by the addition of 2N aqueous hydrochloric acid (2 ml) and evaporated. The residue was dried to give 2-carboxy-4-(6-chloronaphth-2-ylsulphonyl)-1-[1-(4-pyridyl)piperidin-4-ylcarbonyl]piperazine (0.41 g);

Provenance & Evidence