Trifluoroacetic acid → 2-{[(1-Cyano-4-hydroxy-7-phenoxy-isoquinoline-3-carbonyl)-amino]-methyl}-pentanoic acid

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Reaction Steps

A mixture of 2-{[(1-cyano-4-hydroxy-7-phenoxy-isoquinoline-3-carbonyl)-amino]-methyl}-pentanoic acid tert-butyl ester (44 mg), TFA (2 mL) and DCM (2 mL) was stirred at rt overnight; then concentrated, the residue was dissolved in water and added 2 M HCl solution, solids were collected via filtration, washed with water and air dried to give the desired product (27 mg). LC MS ESI+: 420 (M+1)+.

Provenance & Evidence