Hydrochloric Acid → HCID 178480492, compound

Participants

Reaction Steps

A solution of methyl 4-[({4-chloro-1-guanidino-7-isoquinolinyl}sulphonyl)amino]-1-methyl-4-piperidinecarboxylate (100 mg, 0.22 mmol) in aqueous NaOH (2 ml, 2M, 4 mmol) and MeOH (5 ml) was stirred at 60° C. for 42 h. The cooled solution was neutralised using 2M HCl, and the mixture concentrated in vacuo, until precipitation occurred. The solid was filtered, dried and dissolved in concentrated HCl, and the solution evaporated in vacuo. The resulting solid was triturated with Et2O, then i-PrOH, and dried under vacuum, to give 4-[({4-chloro-1-guanidino-7-isoquinolinyl}sulphonyl)amino]-1-methyl-4-piperidinecarboxylic acid hydrochloride (18 mg, 0.035 mmol).

Provenance & Evidence