5-Fluoro-2-[3-methyl-2-(2-methyl-propenyl)-benzoylamino]-indan-2-carboxylic acid → 5-Fluoro-2-(2-isobutyl-3-methyl-benzoylamino)-indan-2-carboxylic acid

Participants

Reaction Steps

To a solution of 2-[3-methyl-2-(2-methyl-propenyl)-benzoylamino]-indan-2-carboxylic acid (149) (230 mg, 0.63 mmol) in acetic acid (10 mL) is added the catalyst, Pd—C (5 wt. % Pd, 134 mg, 6.3% mmol) under argon. The resulting reaction mixture is moved to the Paar apparatus to run hydrogenation: 55 psi, 95° C., overnight. The catalyst is removed by filtration through a pre-column (10 g silica gel) and washed with EtOH. The combined organic solution is concentrated in vacuo. The residue is purified by HPLC to give a pure product (150) as white solid (200 mg, 86%).

Provenance & Evidence