tert-Butyl 4-(6-formylpyridin-3-yl)piperazine-1-carboxylate → Tert-butyl 4-(6-{2-[4-(ethoxycarbonyl)-2-fluorophenyl]vinyl}pyridin-3-yl)piperazine-1-carboxylate

Participants

Reaction Steps

By a method similar to Production Example 108, step 4, [4-(ethoxycarbonyl)-2-fluorobenzyl](triphenyl)phosphonium bromide (2.513 g, 4.802 mmol) and tert-butyl 4-(6-formylpyridin-3-yl)piperazine-1-carboxylate (1.166 g, 4.002 mmol) were condensed to give tert-butyl 4-(6-{2-[4-(ethoxycarbonyl)-2-fluorophenyl]vinyl}pyridin-3-yl)piperazine-1-carboxylate (1.802 g, yield 98.9%, E/Z mixture) as a pale-brown solid.

Provenance & Evidence