Hydrochloric Acid → 7-Phenyl-isoquinoline-5-sulfonic acid (2-amino-ethyl)-amide di-hydrochloride

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Reaction Steps

A 4N HCl solution in 1,4-dioxane (22 mL) is added to a stirred solution of [2-(7-phenyl-isoquinoline-5-sulfonylamino)-ethyl]-carbamic acid tert-butyl ester (2.50 g, 5.85 mmol) in CH2Cl2 (40 mL)/CH3OH (6 mL) at ambient temperature under nitrogen. The resultant white suspension is stirred for 4 hours. At filtration and vacuum drying at 50° C., 2.34 g (5.85 mmol, 100% yield) of the title compound is obtained as a white solid. ESIMS: m/z 328 (M+H)+.

Provenance & Evidence