Lithium Hydroxide → 2-[4-Methoxy-3-(3-methyl-benzyloxymethyl)-benzoylamino]-indane-2-carboxylic acid

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Reaction Conditions

Reaction Steps

The compound of step 2 (50 mg, 0.14 mmol)) was dissolved in DMF (3 ml) and sodium hydride (60% dispersion in mineral oil, 6.2 mg, 0.15 mmol) was added followed by 1-bromomethyl-3-methyl-benzene (27 mg, 0.14 mmol). The mixture was stirred overnight. Then lithium hydroxide (1 M solution in water, 0.42 ml) and dioxane (1 ml) were added and the mixture heated to 60° C. for 1 h. The residue was partitioned between 2 N hydrochloric acid and EA and the aqueous phase was extracted with EA. The combined organic phases were dried over sodium sulfate and evaporated to dryness. The residue was purified by RP HPLC (water/ACN gradient) to yield 5 mg of the title compound.

Provenance & Evidence