300 °C as reported./p> 300 °C; 1H NMR (400 MHz, DMSO-d6) δ ppm: 8.36 (s, 1H, NH, D2O exchangeable), 8.08 (s, 1H, NH, D2O exchangeable), 7.29 (d, J = 8.0 Hz, 2H, Ar–H), 7.04 (m, 4H, Ar–H), 6.49 (d, J = 8.3 Hz, 2H, Ar–H), 4.74 (s, 2H, NH2, D2O exchangeable), 2.22 (s, 3H, -CH3)./p> 300 °C; 1H NMR (500 MHz, DMSO-d6) δ 8.39 (s, 1H, NH, D2O exchangeable), 8.11 (s, 1H, NH, D2O exchangeable), 7.26 (s, 1H, Ar–H), 7.18 (d, J = 8.8 Hz, 1H, Ar–H), 7.10 (t, J = 7.7 Hz, 1H, Ar–H), 7.05 (d, J = 8.7 Hz, 2H, Ar–H), 6.73 (d, J = 7.4 Hz, 1H, Ar–H), 6.49 (d, J = 8.7 Hz, 2H, Ar–H), 4.79 (s, 2H, NH2, D2O exchangeable), 2.25 (s, 3H, -CH3)./p> 300 °C; 1H NMR (500 MHz, DMSO-d6) δ ppm: 8.54 (s, 1H, NH, D2O exchangeable), 7.84 (d, J = 8.4 Hz, 1H, Ar–H), 7.72 (s, 1H, NH, D2O exchangeable), 7.10 (m, 7.6 Hz, 2H, Ar–H), 7.07 (d, J = 8.8 Hz, 2H, Ar–H), 6.87 (m, 1H, Ar–H), 6.50 (d, J = 8.8 Hz, 2H, Ar–H), 4.77 (s, 2H, NH2, D2O exchangeable), 2.21 (s, 3H, -CH3)./p> 300 °C; 1H NMR (500 MHz, DMSO-d6) δ ppm: 9.19 (s, 1H, NH, D2O exchangeable), 8.89 (s, 1H, NH, D2O exchangeable), 8.35 (m, 2H, H-2 and H-7 benzo[d]thiazole), 7.95 (d, J = 8.8 Hz, 1H, H-4 benzo[d]thiazole), 7.45 (d, J = 8.9 Hz, 1H, H-5 benzo[d]thiazole), 7.10 (d, J = 8.3 Hz, 2H, Ar–H), 6.52 (d, J = 8.2 Hz, 2H, Ar–H), 4.81 (s, 1H, -NH, D2O exchangeable), 4.78 (s, 1H, NH, D2O exchangeable)./p> 300 °C. IR (KBr, cm−1): 3398–3263 (4 NH), 3086 (CH aromatic), 1674–1650 (3 C=O).1H NMR (400 MHz, DMSO-d6) δ ppm: 12.22 (s, 1H, CONH, D2O exchangeable), 8.90 (s, 1H, H-2-quinoline), 8.64 (s, 2H,2NH, D2O exchangeable), 8.25 (s, 1H, H-5 quinoline), 7.83 (d, J = 9.1 Hz, 1H, H-7 quinoline), 7.79 (d, J = 9.0 Hz, 1H, H-8 quinoline), 7.64 (d, J = 9.1, 2H, Ar–H), 7.46 – 7.44 (m, 4H, Ar–H), 7.30 – 7.26 (m, 2H, Ar–H), 6.94 (t, J = 9.2 Hz, 1H, Ar–H). 13C NMR (101 MHz, DMSO-d6) δ ppm:175.04, 162.17, 152.57, 144.59, 139.79, 138.12, 135.41, 133.10, 132.89, 129.79, 128.76 (2C), 127.05, 124.37, 121.84, 121.72, 120.20 (2C), 118.86 (2C), 118.15(2C), 111.01. Anal. Calcd for C23H17ClN4O3 (432.86): C, 63.82; H, 3.96; N, 12.94.; Found: C, 64.05; H, 4.12; N, 13.18./p> 300 °C. IR (KBr, cm−1): 3275 (br., 4 NH), 3062 (CH aromatic), 2962 (CH aliphatic), 1654–1639 (3 C=O). 1H NMR (400 MHz, DMSO-d6) δ ppm: 12.19 (s, 1H, CONH, D2O exchangeable), 8.89 (s, 1H, H-2-quinoline), 8.57 (s, 1H, NH, D2O exchangeable), 8.51 (s, 1H, NH, D2O exchangeable), 8.23 (d, J = 2.3 Hz, 1H, H-5 quinoline),7.81(dd, J = 8.6, 2.3 Hz, 1H, H-7 quinoline), 7.76 (d, J = 8.9 Hz, 1H, H-8 quinoline),7.63 (d, J = 8.5 Hz, 2H, Ar–H),7.43 (d, J = 8.4 Hz, 2H, Ar–H), 7.33 (d, J = 8.0 Hz, 2H, Ar–H),7.07 (d, J = 8.0 Hz, 2H, Ar–H),2.24 (s, 3H, CH3). 13C NMR (101 MHz, DMSO-d6) δ ppm:175.07, 162.10, 152.61, 144.47, 137.96, 137.20, 135.53, 132.98, 130.53, 129.83 (2C), 129.15 (2C), 127.03, 124.38, 121.73, 120.19 (2C), 118.78 (2C), 118.25 (2C), 111.05, 20.32. Anal. Calcd for C24H19ClN4O3 (446.89): C, 64.50; H, 4.29; N, 12.54. Found: C, 64.29; H, 4.53; N, 12.79./p> 300 °C. IR (KBr, cm−1): 3348 (br., 4 NH), 3082 (CH aromatic), 3966 (CH aliphatic), 1670–1651 (3 C=O). 1H NMR (400 MHz, DMSO-d6) δ ppm: 12.20 (s, 1H, CONH, D2O exchangeable), 8.88 (s, 1H, H-2-quinoline), 8.61 (s, 1H, NH, D2O exchangeable), 8.55 (s, 1H, NH, D2O exchangeable), 8.23 (d, J = 2.4 Hz, 1H, H-5 quinoline), 7.80 (dd, J = 8.7, 2.5 Hz, 1H, H-7 quinoline),7.76 (d, J = 9.0 Hz, 1H, H-8 quinoline),7.63 (d, J = 8.6 Hz, 2H, Ar–H), 7.44 (d, J = 8.8 Hz, 2H, Ar–H), 7.30 (s, 1H, Ar–H),7.22 (d, J = 8.2 Hz, 1H, Ar–H), 7.13 (t, J = 7.8 Hz, 1H, Ar–H), 6.77 (d, J = 7.4 Hz, 1H, Ar–H), 2.28 (s, 3H, CH3). 13C NMR (101 MHz, DMSO- d6) δ ppm: 175.07, 162.11, 152.54, 144.45, 139.69, 137.96, 137.91, 135.44, 133.05, 132.92, 129.82, 128.59, 127.02, 124.38, 122.47, 121.72, 120.19 (2C), 118.82 (2C), 118.67, 115.33, 111.04, 21.23. Anal. Calcd for C24H19ClN4O3 (446.89): C, 64.50; H, 4.29; N, 12.54. Found: C, 64.34; H, 4.50; N, 12.76./p> 300 °C. IR (KBr, cm−1): 3282 (br., 4 NH), 3082 (CH aromatic), 2962 (CH aliphatic), 1660–1639 (3 C=O). 1H NMR (500 MHz, DMSO-d6) δ ppm: 12.23 (s, 1H, CONH, D2O exchangeable), 9.02 (s, 1H, NH, D2O exchangeable), 8.89 (s, 1H, H-2-quinoline), 8.23 (s, 1H, H-5 quinoline), 7.91 (s, 1H, NH, D2O exchangeable), 7.86 – 7.82 (m, 2H. H-7 and H-8-quinoline), 7.78 (m, 1H, Ar–H), 7.64 (d, J = 8.9 Hz, 2H, Ar–H), 7.45 (d, J = 8.6 Hz, 2H, Ar–H), 7.17–7.12 (m, 2H, Ar–H), 6.95–6.92 (m, 1H, Ar–H), 2.24 (s, 3H, CH3). 13C NMR (126 MHz, DMSO-d6) δ ppm: 175.05, 162.13, 152.67, 144.50, 138.04, 137.46, 135.59, 132.97, 132.96, 130.14, 129.79, 127.45, 127.03, 126.11, 124.36, 122.57, 121.78, 121.01, 120.24 (2C), 118.65 (2C), 111.04, 17.83. Anal. Calcd for C24H19ClN4O3 (446.89):C, 64.50; H, 4.29; N, 12.54. Found: C, 64.59; H, 4.38; N, 12.68./p> 300 °C. IR (KBr, cm−1): 3290 (br., 4 NH), 3082–3008 (CH aromatic), 1659–1636 (3 C=O). 1H NMR (500 MHz, DMSO-d6) δ ppm: 12.26 (s, 1H, CONH, D2O exchangeable), 8.90 (s, 1H, H-2-quinoline), 8.70 (s, 1H, NH, D2O exchangeable), 8.65 (s, 1H, NH, D2O exchangeable), 8.23 (d, J = 2.4 Hz, 1H, H-5-quinoline), 7.81 (dd, J = 8.7, 2.5 Hz, 1H, H-7-quinoline), 7.77 (d, J = 9.0 Hz, 1H, H-8-quinoline), 7.64 (d, J = 8.6 Hz, 2H, Ar–H), 7.48–7.43 (m, 4H, Ar–H), 7.13–7.09 (m, 2H, Ar–H). 13C NMR (101 MHz, DMSO-d6) δ ppm: 175.07, 162.25, 152.71, 144.67, 138.22, 136.14, 135.39, 133.17, 129.83, 127.10, 124.40, 121.93, 120.23 (2C), 120.01, 119.93 (2C), 118.99 (2C), 115.39 (2C), 115.17, 111.03. Anal. Calcd for C23H16ClFN4O3 (450.85): C, 61.27; H, 3.58; N, 12.43. Found: C, 61.43; H, 3.7; N, 12.71./p> 300 °C. IR (KBr, cm−1): 3429–3259 (4 NH), 3093 (CH aromatic), 1670 (br., 3 C=O). 1H NMR (500 MHz, DMSO-d6) δ ppm: 12.23 (s, 1H, CONH, D2O exchangeable), 9.03 (s, 1H, NH, D2O exchangeable), 8.90 (s, 1H, H-2-quinoline), 8.78 (s, 1H, NH, D2O exchangeable), 8.24 (s, 1H, H-5-quinoline), 8.02 (s, 1H, Ar–H), 7.84 (d, J = 9.0 Hz, 1H, H-7-quinoline), 7.78 (d, J = 8.8 Hz, 1H, H-8-quinoline), 7.65 (d, J = 8.4 Hz, 2H, Ar–H), 7.56 (d, J = 8.3 Hz, 1H, Ar–H), 7.49 (m, 1H, Ar–H), 7.45 (d, J = 8.4 Hz, 2H, Ar–H), 7.30 (d, J = 7.8 Hz, 1H, Ar–H). 13C NMR (126 MHz, DMSO-d6) δ ppm: 175.17, 162.22, 155.76, 152.60, 152.19, 147.99, 144.52, 140.72, 137.98, 135.07, 133.44, 133.05, 129.93, 127.10, 124.45, 121.83, 121.82, 120.25 (2C), 119.32 (2C), 118.04, 114.16, 111.12. Anal. Calcd for C24H16ClF3N4O3 (500.86): C, 57.55; H, 3.22; N, 11.19. Found: C, 57.81; H, 3.49; N, 11.42./p> 300 °C. IR (KBr, cm−1): 3356–3271 (4 NH), 3078 (CH aromatic), 2225 (CN), 1658–1640 (3 C=O). 1H NMR (500 MHz, DMSO-d6) δ ppm: 12.25 (s, 1H, CONH, D2O exchangeable), 8.93 (s, 1H, NH, D2O exchangeable), 8.90 (s, 1H, NH, D2O exchangeable), 8.76 (s, 1H, H-2-quinoline), 8.24 (s, 1H, H-5-quinoline), 7.85–7.77 (m, 4H, Ar–H), 7.67 – 7.64 (m, 2H, H-7 and H-8-quinoline), 7.51 (d, J = 6.8 Hz, 2H, Ar–H), 7.46 (d, J = 6.8 Hz, 2H, Ar–H). 13C NMR (126 MHz, DMSO-d6) δ ppm: 175.05, 167.54, 162.24, 152.35, 144.65, 142.59, 138.19, 135.11, 133.24, 132.89, 129.79 (2C), 128.50, 127.07, 124.37, 121.91, 120.21 (2C), 119.09 (2C), 118.01, 117.04 (2C), 111.00. Anal. Calcd for C24H16ClN5O3 (457.87): C, 62.96; H, 3.52; N, 15.30. Found: C, 62.83; H, 3.71; N, 15.48./p> 300 °C. IR (KBr, cm−1): 3417–3282 (4 NH), 3074 (CH aromatic), 1708–1654 (3 C=O). 1H NMR (500 MHz, DMSO-d6) δ ppm: 12.47 (s, 1H, CONH, D2O exchangeable), 9.20 (s, 1H, H-2-quinoline), 8.95 (s, 1H, NH, D2O exchangeable), 8.90 (s, 1H, NH, D2O exchangeable), 8.74 (s, 1H, H-2 benzo[d]thiazole), 8.37 (d, J = 2.0 Hz, 1H, H-5-quinoline), 8.23 (d, J = 2.3 Hz, 1H, H-7-quinoline), 7.97 (d, J = 8.8 Hz, 1H, H-8-quinoline), 7.78 – 7.65 (m, 4H, Ar–H), 7.49–7.45 (m, 3H, H-4, H-5, H-7-benzo[d]thiazole).13C NMR (126 MHz, DMSO-d6) δ ppm: 174.70, 162.82, 153.68, 152.67, 148.29, 145.93, 137.71, 135.06, 134.50, 133.54, 132.34, 129.33, 127.36, 124.27, 123.13, 122.96, 120.16 (2C), 119.21 (2C), 119.08, 118.16, 110.71, 110.28. Anal. Calcd for C24H16ClN5O3S (489.93): C, 58.84; H, 3.29; N, 14.29; S, 6.54. Found: C, 59.12; H, 3.46; N, 14.58; S, 6.63./p> 300 °C. IR (KBr, cm−1): 3317 (br., 4 NH), 3043–3001 (CH aromatic), 3958 (CH aliphatic), 1651 (br., 3 C=O). 1H NMR (500 MHz, DMSO-d6) δ ppm: 12.22 (s, 1H, CONH, D2O exchangeable), 8.90 (s, 1H, H-2-quinoline), 8.60 (s, 1H, NH, D2O exchangeable), 8.55 (s, 1H, NH, D2O exchangeable), 8.24 (d, J = 2.5 Hz, 1H, H-5-quinoline), 7.84 (dd, J = 8.8, 2.5 Hz, 1H, H-7-quinoline), 7.78 (d, J = 8.8 Hz, 1H, H-8-quinoline), 7.63 (d, J = 8.6 Hz, 2H, Ar–H), 7.42 (d, J = 8.7 Hz, 2H, Ar–H), 7.35 (d, J = 8.3 Hz, 2H, Ar–H), 7.13 (d, J = 8.3 Hz, 2H, Ar–H), 2.85–2.79 (m, 1H, -CH(CH3)2), 1.17 (d, J = 6.9 Hz, 6H, -CH(CH3)2). 13C NMR (126 MHz, DMSO-d6) δ ppm: 175.14, 162.20, 152.69, 144.59, 141.89, 138.10, 137.49, 135.59, 133.00, 129.89, 127.87, 127.12, 126.51(2C), 124.44, 121.86, 120.27 (2C), 118.87 (2C), 118.44 (2C), 111.12, 32.80, 24.05 (2C). Anal. Calcd for C26H23ClN4O3 (474.94): C, 65.75; H, 4.88; N, 11.80. Found: C, 65.92; H, 4.95; N, 11.97./p> 300 °C. IR (KBr, cm−1): 3271 (br., 4 NH), 3097 (CH aromatic),1685–1651 (3 C=O). 1H NMR (400 MHz, DMSO-d6) δ ppm: 12.25 (s, 1H, CONH, D2O exchangeable), 8.86 (s, 1H, H-2-quinoline), 8.62 (s, 2H, NH, D2O exchangeable), 7.93 (d, J = 9.0 Hz, 1H, H-5-quinoline), 7.80–7.69 (m, 2H, H-7 and H-8-quinoline), 7.63 (d, J = 8.5 Hz, 2H, Ar–H), 7.46–7.44 (m, 4H, Ar–H), 7.25 (t, J = 7.5 Hz, 2H, Ar–H), 6.94 (t, J = 7.3 Hz, 1H, Ar–H).13C NMR (101 MHz, DMSO-d6) δ ppm: 175.48, 162.36, 158.18, 152.67, 144.05, 139.82, 136.03, 135.45, 133.20, 128.85 (2C), 127.40, 122.14, 121.84, 120.27 (2C), 118.98 (2C), 118.27 (2C), 110.27, 109.87, 109.64. Anal. Calcd for C23H17FN4O3 (416.40): C, 66.34; H, 4.11; N, 13.45. Found: C, 66.23; H, 4.37; N, 13.69./p> 300 °C. IR (KBr, cm−1): 3360–3221 (4 NH), 3070 (CH aromatic), 2985 (CH aliphatic), 1660–1651 (3 C=O). 1H NMR (400 MHz, DMSO-d6) δ ppm: 12.24 (s, 1H, CONH, D2O exchangeable), 8.85 (s, 1H, H-2-quinoline), 8.58 (s, 1H, NH, D2O exchangeable), 8.52 (s, 1H, NH, D2O exchangeable), 7.93 (d, J = 9.0 Hz, 1H, H-5-quinoline), 7.80–7.68 (m, 2H, H-7 and H-8-quinoline), 7.63 (d, J = 8.6 Hz, 2H, Ar–H), 7.43 (d, J = 8.4 Hz, 2H, Ar–H), 7.33 (d, J = 8.0 Hz, 2H, Ar–H), 7.06 (d, J = 7.9 Hz, 2H, Ar–H), 2.23 (s, 3H, -CH3). 13C NMR (101 MHz, DMSO-d6) δ ppm: 175.46, 162.33, 152.71, 144.02, 137.24, 136.04, 135.55, 133.11, 130.64, 129.22 (2C), 122.22, 121.88, 121.63, 120.25 (2C), 118.89 (2C), 118.36 (2C), 110.27, 109.85, 109.62, 20.37. Anal. Calcd for C24H19FN4O3 (430.43): C, 66.97; H, 4.45; N, 13.02. Found: C, 66.71; H, 4.60; N, 13.28./p> 300 °C. IR (KBr, cm−1): 3414–3263 (4 NH), 3097 (CH aromatic), 2981 (CH aliphatic), 1670 (br., 3 C=O). 1H NMR (500 MHz, DMSO-d6) δ ppm: 12.29 (s, 1H, CONH, D2O exchangeable), 8.90 (s, 1H, H-2-quinoline), 8.62 (s, 1H, , NH, D2O exchangeable), 8.57 (s, 1H, , NH, D2O exchangeable), 7.96 (dd, J = 9.1, 3.0 Hz, 1H, , H-5-quinoline), 7.83 (dd, J = 9.1, 4.6 Hz, 1H, H-8-quinoline), 7.71 (td, J = 8.6, 3.0 Hz, 1H, H-7-quinoline), 7.63 (d, J = 8.9 Hz, 2H, Ar–H), 7.43 (d, J = 8.9 Hz, 2H, Ar–H), 7.30 (s, 1H, Ar–H), 7.22 (d, J = 7.7 Hz, 1H, Ar–H), 7.13 (t, J = 7.7 Hz, 1H, Ar–H), 6.77 (d, J = 7.4 Hz, 1H, Ar–H), 2.27 (s, 3H, -CH3). 13C NMR (101 MHz, DMSO-d6) δ ppm: 175.55, 162.36, 152.68, 146.83, 144.06, 139.74, 138.05, 136.00, 135.52, 133.16, 128.72, 122.64, 122.16, 120.31(2C), 118.99 (2C), 118.82, 115.48, 110.96, 110.31, 109.90, 109.68, 21.31. Anal. Calcd for C24H19FN4O3 (430.43): C, 66.97; H, 4.45; N, 13.02. Found: C, 66.88; H, 4.63; N, 13.19./p> 300 °C. IR (KBr, cm−1): 3271 (4 NH), 3059 (CH aromatic), 2978 (CH aliphatic), 1647 (br., 3 C=O). 1H NMR (400 MHz, DMSO-d6) δ ppm:12.26 (s, 1H, CONH, D2O exchangeable), 8.98 (s, 1H, NH, D2O exchangeable), 8.89 (s, 1H, H-2-quinoline), 7.95 (dd, J = 9.2, 3.0 Hz, 1H, H-5 quinoline), 7.88 (s, 1H, NH, D2O exchangeable), 7.85–7.82 (m, 2H, H-8-quinoline and Ar–H), 7.70 (td, J = 8.6, 3.0 Hz, 1H, H-7-quinoline,),7.64 (d, J = 9.0 Hz, 2H, Ar–H), 7.44 (d, J = 8.5 Hz, 2H, Ar–H), 7.18–7.12 (m, 2H, Ar–H), 6.92 (t, J = 7.4 Hz, 1H, Ar–H), 2.25 (s, 3H, -CH3). 13C NMR (101 MHz, DMSO-d6) δ ppm: 175.47, 162.31, 152.73, 144.09, 143.46, 137.49, 135.62, 133.03, 130.21, 127.50, 127.15, 126.19, 122.65, 122.27, 121.04, 120.27(2C), 118.71(2C), 115.46, 112.96, 110.25, 109.62, 17.91. Anal. Calcd for C24H19FN4O3 (430.43): C, 66.97; H, 4.45; N, 13.02. Found: C, 67.04; H, 4.61; N, 13.27./p> 300 °C. IR (KBr, cm−1): 3375–3221 (4 NH), 3074 (CH aromatic), 1685–1651 (3 C=O). 1H NMR (500 MHz, DMSO-d6) δ ppm: 12.28 (s, 1H, CONH, D2O exchangeable), 8.88 (s, 1H, H-2-quinoline), 8.69 (s, 1H, NH, D2O exchangeable), 8.64 (s, 1H, 1NH, D2O exchangeable), 7.95–7.71 (m, 3H, H-5, H-7 and H-8-quinoline), 7.65 (m, 2H, Ar–H), 7.46 (m, 4H, Ar–H), 7.12 (m, 2H, Ar–H). 13C NMR (126 MHz, DMSO-d6) δ ppm: 175.46, 162.36, 152.74, 144.13, 136.16, 135.40, 133.24, 127.42, 122.28, 121.85, 120.24 (2C), 120.03 (2C), 119.97, 119.03 (2C), 115.37 (2C), 115.19, 110.27, 109.81, 109.63. Anal. Calcd for C23H16F2N4O3 (434.39): C, 63.59; H, 3.71; N, 12.90. Found: C, 63.72; H, 3.85; N, 13.18./p> 300 °C. IR (KBr, cm−1): 3271–3236 (4 NH), 3066 (CH aromatic), 1670–1650 (3 C=O). 1H NMR (500 MHz, DMSO-d6) δ ppm: 12.28 (s, 1H, CONH, D2O exchangeable), 9.04 (s, 1H, NH, D2O exchangeable), 8.88 (s, 1H, H-2-quinoline), 8.77 (s, 1H, NH, D2O exchangeable), 8.03 (s, 1H , Ar–H), 7.94 (dd, J = 9.2, 2.9 Hz, 1H, H-5-quinoline), 7.80 (dd, J = 9.1, 4.6 Hz, 1H, H-8-quinoline), 7.73–7.69 (m, 1H, H-7-quinoline), 7.65 (d, J = 8.4 Hz, 2H, Ar–H), 7.56 (d, J = 8.1 Hz, 1H, Ar–H), 7.51–7.48 (m, 1H, Ar–H), 7.45 (d, J = 8.5 Hz, 2H, Ar–H), 7.28 (d, J = 7.8 Hz, 1H, Ar–H). 13C NMR (126 MHz, DMSO-d6) δ ppm: 175.59, 162.46, 160.47, 158.53, 152.71, 144.15, 140.84, 136.11, 135.14, 133.61, 130.01, 127.46, 122.30, 122.24, 121.93, 120.33 (2C), 119.43 (2C), 118.10, 114.28, 110.38, 109.93, 109.75. Anal. Calcd for C24H16F4N4O3 (484.40): C, 59.51; H, 3.33; N, 11.57. Found: C, 59.78; H, 3.45; N, 11./p> 300 °C. IR (KBr, cm−1): 3309–3224 (4 NH), 3055 (CH aromatic), 2954 (CH aliphatic), 1680–1643 (3 C=O). 1H NMR (400 MHz, DMSO-d6) δ ppm: 12.25 (s, 1H, CONH, D2O exchangeable), 8.88 (s, 1H, H-2-quinoline), 8.57 (s, 1H, NH, D2O exchangeable), 8.52 (s, 1H, NH, D2O exchangeable), 7.95 (dd, J = 9.1, 3.0 Hz, 1H, H-5-quinoline), 7.82 (dd, J = 9.1, 4.7 Hz, 1H, H-8-quinoline), 7.70 (dt, J = 10.3, 5.1 Hz, 1H, H-7-quinoline), 7.63 (d, J = 8.4 Hz, 2H, Ar–H), 7.43 (d, J = 8.5 Hz, 2H, Ar–H), 7.35 (d, J = 8.2 Hz, 2H, Ar–H), 7.13 (d, J = 8.1 Hz, 2H, Ar–H), 2.84- 2.81(m, 1H, -CH(CH3)2), 1.19–1.17 (d, J = 6.9 Hz, 6H, -CH(CH3)2). 13C NMR (126 MHz, DMSO-d6) δ ppm: 175.42, 162.24, 152.62, 144.00, 141.81, 137.42, 135.96, 135.50, 133.02, 127.34, 126.44 (2C), 122.10, 121.86, 120.18 (2C), 118.80 (2C), 118.38 (2C), 110.24, 109.77, 109.76, 32.74, 23.99 (2C). Anal. Calcd for C26H23FN4O3 (458.48): C, 68.11; H, 5.06; N, 12.22. Found: C, 67.94; H, 5.23; N, 12.46./p>