Sodium Hydroxide → HCID 67441420, compound

Participants

Reaction Steps

A mixture of methyl 2-(4-fluoro-3-(picolinamido)phenyl)-3,3-dimethyl-1,2,3,4-tetrahydroquinoline-6-carboxylate (84 mg, 0.19 mmol) and sodium hydroxide (62 mg, 1.55 mmol) in tetrahydrofuran (10 mL), water (2 mL) was heated to reflux for 20 h. LC-MS showed the reaction was complete. The solvent was removed in vacuo and the residue was acidified by 1 M hydrochloric acid solution to pH=5-6. The precipitated white solid was collected by filtration and dissolved in acetone, dried over anhydrous magnesium sulfate. Removal of the solvent in vacuo gave crude product, which was purified by recrystallization from dichloromethane/Hexane/tetrahydrofuran to afford 30 mg of 2-(4-fluoro-3-(picolinamido)-phenyl)-3,3-dimethyl-1,2,3,4-tetrahydroquinoline-6-carboxylic acid. Yield: 42.1%. MS (ES+APCI) M+1=420.1.

Provenance & Evidence