Ammonia → {(S)-6-[(R)-7-Fluoro-4-(3-methoxybenzyl)-indan-1-yloxy]-2,3-dihydrobenzofuran-3-yl}-acetic acid methyl ester

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Reaction Conditions

Reaction Steps

The title compound is prepared from {(S)-6-[(R)-4-bromo-7-fluoro-indan-1-yloxy]-2,3-dihydro-benzofuran-3-yl}-acetic acid methyl ester (84 mg), 3-methoxy-benzylzinc chloride (0.5 mol/L in tetrahydrofuran, 1.2 mL) and tetrakis(triphenylphosphine)-palladium (23 mg). Degassed tetrahydrofuran (1 mL) is added under Ar atmosphere, and the mixture is heated to 60° C. and shaken at this temperature overnight. The mixture is acidified with 4 N aqueous hydrochloric acid (1 mL) and then neutralized with saturated aqueous ammonia solution. The organic phase is separated, diluted with N,N-dimethylformamide (1 mL), and purified by HPLC on reversed phase (MeCN/water) to give the title compound. LC (method 6): tR=1.17 min.

Provenance & Evidence