Hydrochloric Acid → 3-[1-[4-(2,5-dimethyl-4-oxazolylmethoxy)benzyl]3-phenyl-1H-pyrazol-4-yl]propionic acid

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Reaction Steps

A mixture of methyl 3-[1-[4-(2,5-dimethyl-4-oxazolylmethoxy)benzyl]3-phenyl-1H-pyrazol-4-yl]propionate (254 mg), lithium hydroxide monohydrate (69.9 mg), tetrahydrofuran (6 ml), water (4 ml) and methanol (4 ml) was stirred at room temperature for 2 hours, and 1N hydrochloric acid (1.7 ml) was added to the mixture, which was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated aqueous sodium chloride solution, dried (MgSO4), then concentrated to yield 3-[1-[4-(2,5-dimethyl-4-oxazolylmethoxy)benzyl]3-phenyl-1H-pyrazol-4-yl]propionic acid (243 mg, yield: 99%) as an amorphous substance.

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