Hydrochloric Acid → HCID 67440730, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-[3-(1-isopropylcarbamoyl-1-methyl-ethylamino)-phenyl]-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid ethyl ester (0.85 g, 1.88 mmol) in methanol (10 mL) and tetrahydrofuran (20 mL), 30% sodium hydroxide in water (10 mL) was stirred at 50° C. for 12 h. The mixture was neutralized with a 3 N aqueous hydrochloric acid solution and extracted with ethyl acetate (2×100 mL), washed with water, dried over anhydrous sodium sulfate and then concentrated in vacuo. Purification by Waters automated flash system (column: Xterra 30 mm×100 mm, sample manager 2767, pump 2525, detector: ZQ mass and UV 2487, solvent system: acetonitrile and 0.1% formic acid in water) afforded 2-[3-(1-isopropylcarbamoyl-1-methyl-ethylamino)-phenyl]-3,3-dimethyl-1,2,3,4-tetrahydro-quinoline-6-carboxylic acid (260 mg, 30%) as a white solid: LC/MS m/e calcd for C25H33N3O3 (M+H)+: 424.56, observed: 424.1.

Provenance & Evidence