Sodium Hydroxide → 1-[(2'-t-Butoxycarbonylbiphenyl-4-yl)methyl]-2-butyl-4-[1-hydroxy-2-methyl-1-(1-methylethyl)propyl]imidazole-5-carboxamide

Participants

Reaction Steps

10 ml of a 1N aqueous solution of sodium hydroxide were added to a solution of 500 mg of 1-[(2'-t-butoxycarbonylbiphenyl-4-yl)methyl]-2-butyl-4-[1-hydroxy-2-methyl-1-(1-methylethyl)propyl]imidazole-5-carbonitrile [prepared as described in step (a) above] in 10 ml of ethanol, and the resulting mixture was heated under reflux for 20 hours. At the end of this time, the reaction mixture was worked up in a similar manner to that described in Example 45(c), to give 220 mg of the title compound as an amorphous solid.

Provenance & Evidence