Ethyl Acetate → [(1-Dimethylcarbamoyl-4-hydroxy-isoquinoline-3-carbonyl)-amino]-acetic acid

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Reaction Steps

A mixture of [(4-Benzyloxy-1-dimethylcarbamoyl-isoquinoline-3-carbonyl)-amino]-acetic acid benzyl ester (209 mg, 0.42 mmol), Pd/C (100 mg, 10 wt % Pd), EtOAc (10 ml) and MeOH (50 ml) was stirred under a H2-atmosphere at ambient pressure and temperature for 18 h. Then the mixture was filtered through a pad of celite. Celite and filter cake were washed thoroughly with EtOAc and the combined organic phases were concentrated in vacuo to give the title compound as a brown solid (122 mg); MS-(−)-ion: M−1=316.1.

Provenance & Evidence