Ethyl Acetate → 1-(2-(2-((5-ethoxy-2-fluoro-3-isopropoxyphenyl)(4-(5-methyl-1,2,4-oxadiazol-3-yl)phenylamino)methyl)-1-trityl-1H-imidazol-4-yl)phenyl)propan-1-one

Participants

Reaction Steps

A mixture of Intermediate 122.2 and Dess-Martin periodinate (60 mg, 0.12 mmol) in anhydrous CH2Cl2 (2 mL) was stirred at rt for 20 min. The reaction mixture was then partionated between EtOAc and 1 N NaOH, the organic layer was collected and dried over (Na2SO4), filtered and concentrated to afford Intermediate 122.3, which was used in the following step without further purification. LCMS (2 min gradient) RT=2.27 min, 826.4 (M+H).

Provenance & Evidence