“…C;1 H NMR (400 16. MHz, DMSO-d 6 ), δ (ppm): 0.75 (3H, s, C 6 -CH 3 ); 1.60 (3H, s, C 4 -CH 3 ); 1.69 (3H, s, C4 -CH 3 ); 2.11 (1H, d, J = 14.3 Hz, C 5 -H); 2.46 (1H, d, J = 14.4 Hz, C 5 -H); 3.81 (3H, s, CH 3 O), 6.75 (1H, s, C=CH); 7.14 (2H, d, J = 8.7 Hz, CHarom); 7.34 (2H, d, J = 8.8 Hz, CHarom); 7.48-7.51 (2H, m, CHarom); 13.34 (1H, br.s, NH). 13 C NMR, δ (ppm): 24.7, 24.7, 27.5, 30.0, 50.7, 52.5, 52.6, 53.9, 115.6, 115.6, 119.4, 119.5, 120.4, 126.8, 127.6, 128.2, 128.5, 130.2, 130.2, 130.9, 139.5, 141.9, 146.0, 146.3, 155.7, 165.8, 166.2, 167.4.…”