Hydrochloric Acid → HCID 70498044, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of afford 6-fluoro-2-{3-[4-(2-fluoro-phenyl)-piperazin-1-yl]-phenyl}-4,4-dimethyl-1,2,3,4-tetrahydro-quinoline-8-carboxylic acid methyl ester (0.30 g, 0.61 mmol) in methanol (3 mL) and tetrahydrofuran (10 mL), 30% sodium hydroxide in water (1 mL). The reaction mixture was stirred at 60° C. for 12 h. The mixture was neutralized with a 3 N aqueous hydrochloric acid solution and extracted with ethyl acetate (2×50 mL), washed with water, dried over anhydrous sodium sulfate and then concentrated in vacuo to afford 6-fluoro-2-{3-[4-(2-fluoro-phenyl)-piperazin-1-yl]-phenyl}-4,4-dimethyl-1,2,3,4-tetrahydro-quinoline-8-carboxylic acid (0.26 g, 90%) as a white solid which was used for next step without further purification: MS (ESI) M+1=478.3.

Provenance & Evidence