Water → HCID 178451235, compound

Participants

Reaction Conditions

Reaction Steps

N-[(4-Chloro-1-guanidino-7-isoquinolinyl)sulphonyl]-N-benzylglycine trifluoroacetate ##STR19## Guanidine hydrochloride (180 mg, 1.88 mmol) was added in one portion to a suspension of NaH (45 mg, 80% dispersion by wt in mineral oil, 1.5 mmol) in DME (11 mL) and the mixture was heated at 60° C. under N2 for 30 min. N-[(1,4-Dichloro-7-isoquinolinyl)sulphonyl]-N-benzylglycine t-butyl ester (225 mg, 0.467 mmol) was added and the mixture heated at 90° C. for 18 h. The cooled mixture was poured into water, extracted with EtOAc (×3) and the combined organic phase was then washed with water, dried (Na2SO4) and evaporated in vacuo. The residue was purified by column chromatography upon silica gel using CH2Cl2 -MeOH-0.880NH3 (97:3:0.3) as eluant to give N-[(4-chloro-1-guanidino-7-isoquinolinyl)sulphonyl]-N-benzylglycine t-butyl ester (172 mg, 0.34 mmol) as a yellow foam.

Provenance & Evidence