Reaction Steps
Using the above described procedure, docosanoic acid 101h (3.41 g, 10 mmol) was coupled with the amine 100 and after work-up and column purification the pure amide was isolated as a foam (3.5 g, 41%). 1H NMR (DMSO-d6, 400 MHz) δ=7.69 (m, 1H), 7.32-6.80 (m, 13H), 4.98 (d, J=3.90 Hz, 0.7H), 4.88 (d, J=3.90 Hz, 0.3H), 4.40-4.05 (m, 2H), 3.71 (s, 6H), 3.59-3.42 (m, 1H), 3.34-3.13 (m, 2H), 3.10-2.87 (m, 3H), 2.20-1.80 (m, 6H), 1.50-1.08 (m, 44H), 0.81 (t, J=6.1 Hz, 3H). 13C NMR (DMSO-d6, 400 MHz) δ=171.78, 170.89, 170.79, 162.30, 162.25, 158.09, 157.97, 145.08, 144.73, 135.86, 135.70, 135.45, 135.40, 129.59, 129.53, 127.82, 127.72, 127.56, 126.69, 126.52, 113.14, 113.05, 85.78, 85.10, 68.58, 67.44, 65.19, 63.32, 55.60, 55.05, 54.96, 54.93, 38.22, 38.01, 36.30, 35.76, 35.43, 34.16, 32.53, 31.35, 30.74, 29.09, 28.87, 28.78, 28.73, 26.20, 25.35, 24.13, 22.13, 13.88.