Sodium hydride → HCID 178451241, compound

Participants

Reaction Conditions

Reaction Steps

N-[(4-Chloro-1-guanidino-7-isoquinolinyl)sulphonyl]-N-(2-pyridylmethyl)glycine dihydrochloride ##STR25## Guanidine hydrochloride (293 mg, 3.07 mmol was added in one portion to a stirred suspension of NaH (57 mg, 80% dispersion by wt in mineral oil, 1.92 mmol) in DME (10 mL) and the mixture was heated at 60° C. under N2 for 30 min. A solution of N-[(1,4-dichloro-7-isoquinolinyl)sulphonyl]-N-(2-pyridylmethyl)glycine t-butyl ester (370 mg, 0.78 mmol) in DME (10 mL) was added and the mixture heated at 90° C. for 1 h. The solvents were evaporated in vacuo, the residue was dissolved with EtOAc (200 mL), and washed with aqueous NH4Cl (150 mL), dried (MgSO4) and evaporated in vacuo. The residue was purified by column chromatography upon silica gel using pentane-EtOAc (100:0 to 20:80) as eluant to give N-[(4-chloro-1-guanidino-7-isoquinolinyl)sulphonyl]-N-(2-pyridylmethyl)glycine t-butyl ester (120 mg, 0.24 mmol) as a pale yellow foam.

Provenance & Evidence