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[18] Data for of compounds: 3a: FTIR (KBr, cmꢀ1) n: 3302 (NH), 3161 (Ar–CH), 3089 ( CH), 1681 (C N); 1H NMR (500 MHz, DMSO-d6): d
9.73 (s, 1H, NH), 8.21 (s, 1H, CH), 7.29–6.99 (m, 10H, Ar); Mass m/z: 197 (M+1). 3b: FTIR (KBr, cmꢀ1): 3290 (NH), 3149 (Ar–CH), 3064
(
CH), 1660 (C N), 827; 1H NMR (500 MHz, DMSO-d6): d 9.91 (s, 1H, NH), 8.20 (s, 1H, CH), 7.52–6.96 (m, 8H, Ar); Mass m/z: 355 (M+1),
357 (M+2). 3c: FTIR (KBr, cmꢀ1): 3307 (NH), 3161 (Ar–CH), 3064 ( CH), 1672 (C N); 1H NMR (500 MHz, DMSO-d6): d 10.03 (s, 1H,
NH), 8.35 (s, 1H, CH), 7.31–6.94 (m, 8H, Ar); Mass m/z: 265 (M)+. 3d: FTIR (KBr, cmꢀ1): 3290 (NH), 3155 (Ar–CH), 3050 ( CH), 1672
(C N); 1H NMR (500 MHz, DMSO-d6): d 9.69 (s, 1H, NH), 8.10 (s, 1H, CH), 7.42–6.96 (m, 8H, Ar); Mass m/z: 233 (M+1). 3e: FTIR (KBr,
cmꢀ1): 3305 (NH), 3167 (Ar–CH), 3084 ( CH), 1668 (C N); 1H NMR (500 MHz, DMSO-d6): d 9.97 (s, 1H, NH), 8.28 (s, 1H, CH), 7.71–
7.17 (m, 6H, Ar); Mass m/z: 301 (M)+. 3f: FTIR (KBr, cmꢀ1): 3290 (NH), 3147 (Ar–CH), 3016 ( CH), 1666 (C N); 1H NMR (500 MHz,
DMSO-d6): d 8.89 (s, 1H, NH), 7.91 (s, 1H, CH), 7.16–6.92 (m, 8H, Ar), 2.82 (s, 6H, 2X CH3); Mass m/z: 225 (M+1). 3 g: FTIR (KBr, cmꢀ1):
3284 (NH), 3124 (Ar–CH), 3047 ( CH), 1681 (C N), 785; 1H NMR (500 MHz, DMSO-d6): d 9.63 (s, 1H, NH), 8.19 (s, 1H, CH), 7.16–6.79
(m, 8H, Ar), 2.27 (s, 6H, 2X CH3); Mass m/z: 225 (M+1). 3 h: FTIR (KBr, cmꢀ1): 3250 (NH), 3111 (Ar–CH), 3012 ( CH), 1664 (C N); 1H
NMR (500 MHz, DMSO-d6): d 8.71 (s, 1H, NH), 7.81 (s, 1H, CH), 7.01–6.87 (m, 6H, Ar), 2.22 (s, 12H, 4X CH3); Mass m/z: 253 (M+1). 3i:
FTIR (KBr, cmꢀ1): 3282 (NH), 3116 (Ar–CH), 3037 ( CH), 1662 (C N); 1H NMR (500 MHz, DMSO-d6): d 8.82 (s, 1H, NH), 7.89 (s, 1H,
CH), 7.03–6.71 (m, 6H, Ar), 2.24 (s, 6H, 2X CH3), 2.21 (s, 6H, 2X CH3); Mass m/z: 253 (M+1). 3j: FTIR (KBr, cmꢀ1): 3296 (NH), 3132 (Ar–
CH), 3018 ( CH), 2960 (CH), 1662 (C N), 829; 1H NMR (500 MHz, DMSO-d6): d 9.56 (s, 1H, NH), 8.13 (s, 1H, CH), 7.26–6.96 (m, 8H, Ar),
2.54 (q, 4H, 2X CH2), 1.15 (t, 6H, 2X CH3); Mass m/z: 253 (M+1). 3k: FTIR (KBr, cmꢀ1): 3315 (NH), 3159 (Ar–CH), 3068 ( CH), 1672
(C N), 786; 1H NMR (500 MHz, DMSO-d6): d 9.69 (s, 1H, NH), 8.23 (s, 1H, CH), 7.27–6.56 (m, 8H, Ar), 3.74 (s, 6H, 2X OCH3); Mass m/z:
257 (M+1). 3l: FTIR (KBr, cmꢀ1): 3294 (NH), 3134 (Ar–CH), 3064 ( CH), 1678 (C N); 1H NMR (500 MHz, DMSO-d6): d 9.37 (s, 1H, NH),
8.00 (s, 1H, CH), 7.13–6.78 (m, 8H, Ar), 3.71 (s, 6H, 2X OCH3); Mass m/z: 257 (M+1).