tert-Butyl 4'-(bromomethyl)biphenyl-2-carboxylate → Ethyl 1-{4-[2-(t-butoxycarbonyl)phenyl]phenyl}methyl-2-ethoxymethyl-4-(1-hydroxy-1-methylethyl)imidazole-5-carboxylate

Participants

Reaction Steps

A procedure similar to that described in Example 82(a) was repeated, except that 315 mg of ethyl 4-(1-hydroxy-1-methylethyl)-2-ethoxymethylimidazole-5-carboxylate [prepared as described in Preparation 44 (iii)], 145 mg of potassium t-butoxide and 510 mg of 4-[2-(t-butoxycarbonyl)phenyl]benzyl bromide were employed and the product was purified by column chromatography through silica gel using a 1:1 by volume mixture of hexane and ethyl acetate as the eluent, to obtain 600 mg of the title compound as a syrup.

Provenance & Evidence