Allyl bromide → Ethyl 2-n-propyl-5-allyl-3-[2'-(t-butoxycarbonyl)biphenyl-4-yl]methyl-4,5,6,7-tetrahydroimidazo[4,5-c]pyridine-4-carboxylate

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Reaction Steps

A mixture of ethyl 2-n-propyl-3-[2'-(t-butoxycarbonyl)biphenyl-4-yl]methyl-4,5,6,7-tetrahydroimidazo[4,5-c]pyridine-4-carboxylate (0.20 g), potassium carbonate (0.082 g), allyl bromide (0.057 g) and tetrahydrofuran (2 ml) is stirred overnight at room temperature. To the mixture is added chloroform, and the mixture is washed, dried and evaporated. The residue is purified by silica gel column chromatography (solvent; chloroform/methanol) to give ethyl 2-n-propyl-5-allyl-3-[2'-(t-butoxycarbonyl)biphenyl- 4-yl]methyl-4,5,6,7-tetrahydroimidazo[4,5-c]pyridine-4-carboxylate (0.128 g).

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