Sodium hydride → HCID 178451140, compound

Participants

Reaction Conditions

Reaction Steps

(±)-cis-2-{[(4-Chloro-1-guanidino-7-isoquinolinyl)sulphonyl]amino}cyclohexanecarboxylic acid hydrochloride ##STR56## Guanidine hydrochloride (325 mg, 3.4 mmol) was added in one portion to a stirred suspension of NaH (89 mg, 80% dispersion by wt in mineral oil, 2.97 mmol) in DME (5 mL) and the mixture was heated at 60° C. under N2 for 30 min. A solution of t-butyl (±)-cis-2-{[(1,4-dichloro-7-isoquinolinyl)sulphonyl]amino}cyclohexanecarboxylate (391 mg, 0.85 mmol) in DME (5 mL) was added and the mixture heated at 90° C. for 6 h. The solvents were evaporated in vacuo, the residue was dissolved with EtOAc, washed with aqueous NH4Cl, dried (MgSO4) and evaporated in vacuo. The residue was purified by column chromatography upon silica gel using using toluene-i-PrOH-0.880NH3 (100:0:0 to 90:10:0.05) as eluant to give t-butyl (±)-cis-2-{[(4-chloro-1-guanidino-7-isoquinolinyl)sulphonyl]amino}cyclohexanecarboxylate (75 mg, 0.15 mmol) as a white solid.

Provenance & Evidence