Lithium Hydroxide → HCID 178447278, compound

Participants

Reaction Steps

Ethyl 3-[N-[[4-[2-(3-triphenylmethyl-3H-tetrazol-5-yl)phenyl]phenyl]methyl]-N-pentanoylamino]benzoate (0.37 g) synthesized in Example 1a was dissolved in 75% acetic acid-water (8.8 ml), and the mixture was stirred at room temperature for 24 hrs. The reaction mixture was concentrated and dried to give a solid. The residue was dissolved in 75% dioxane-water (8.8 ml), lithium hydroxide (45 mg) was added, and the mixture was stirred at 50° C. for 24 hrs. The reaction mixture was concentrated to give a solid, and the residue was purified by silica gel column chromatography (methylene chloride-methanol:7-3 v/v) to give the object compound (0.12 g, yield 88%).

Provenance & Evidence