4-(Biphenyl-4-ylaminomethyl)-5-methyl-furan-2-carboxylic acid methyl ester → 4-(Biphenyl-4-ylaminomethyl)-5-methyl-furan-2-carboxylic acid

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Reaction Steps

A solution of 4-(biphenyl-4-ylaminomethyl)-5-methyl-furan-2-carboxylic acid methyl ester (158) (91 mg, 0.283 mmoles) in dry tetrahydrofuran (5 ml) was treated with potassium trimethylsilanoate (182 mg, 1.42 mmoles) and the mixture stirred under an argon atmosphere for 3 hours. After evaporation of the solvent, the residue was purified by HPLC (gradient: 15% acetonitrile/85% water containing 0.1% trifluoroacetic acid to 55% acetonitrile/45% water at a rate of 1%/min) to afford compound 160(35 mg) as a white solid. LC/MS System D; Rt=7.64 mins, m/z (ES+)=308 (M+H for C19H17NO3).

Provenance & Evidence