“…Yield 0.168 g (45%), mp 202-203°C. 1 H NMR spectrum, δ, ppm: 1.61-1.68 m (6H, Ad), 1.89 d (3H, Ad, J = 2.7 Hz), 2.08 d (3H, Ad, J = 14.1 Hz), 2.29 s (3H, Ad), 7.08-7.10 m (1H, H arom ), 7.13-7.17 m (1H, H arom ), 7.31-7.38 m (3H, H arom ), 7.48 s (1H, AdNH), 9.60 s (1H, NHPh). 13…”