Hydrochloric Acid → 2-[(4-{3-[(2,4-Difluorobenzyl)(propyl)amino]-3-oxopropyl}phenoxy)methyl]benzoic acid

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A mixture of methyl 2-[(4-{3-[(2,4-difluorobenzyl)(propyl)amino]-3-oxopropyl}phenoxy)methyl]benzoate (0.184 g, 0.382 mmol) and lithium hydroxide (0.018 g, 0.76 mmol) in THF (2 ml) and water (2 ml) was heated at 150 degrees for 7 minutes. The mixture was diluted with water, acidified with hydrochloric acid and extracted with methylene chloride. The combined extracts were dried with magnesium sulfate and evaporated to give 2-[(4-{3-[(2,4-difluorobenzyl)(propyl)amino]-3-oxopropyl}phenoxy)methyl]benzoic acid.

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