The acid from Example 59 Part A (100 mg, 0.32 mmol), triethylamine (150 μL, 1.2 mmol), and BOP reagent (210 mg, 0.48 mmol) were dissolved in THF (9 mL). The mixture was stirred at rt for 15 min and 4-aminobenzamide (47 mg, 0.35 mmol) was added. The resulting mixture was heated at 70° C. under N2 for 1 h. The mixture was concentrated and then re-dissolved in EtOAc. It was washed with water and brine, dried over Na2SO4, concentrated, and purified by flash chromatography (silica gel, EtOAc/hexane) to give 45 mg of the desired product (32%). MS 436.3 (M+H)+.
