Piperidine → (RS) methyl 3-{6-[2-(3-hydroxy-4-nitrophenyl)-acetylamino]-pyridin-3-yl}-butanoate

Participants

Reaction Steps

A solution of (RS) Methyl 3-{6-[2-(3-acetoxy-4-nitrophenyl)-acetylamino]-pyridin-3-yl}-butanoate (1.5 g, Reference Example 16) in dichloromethane (50 mL) was treated with a piperidine (5.0 mL). After stirring at room temperature for 1.5 hours the reaction mixture was washed with aqueous acetic acid (1M), then and dried over magnesium sulphate and then evaporated. The residual light brown oil was subjected to flash chromatography on silica eluting with a mixture of ethyl acetate and pentane (1:1, v/v) to give the title compound (1.26 g) as a pale yellow solid.

Provenance & Evidence