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400 MHz): d 3.93 (s, 3H), 7.02 (m, 2H, H-2 and H-5), 7.24 (m, 1H,
H-20), 7.47 (m, 2H, H-3 and H-4), 7.71 (d, J = 8.7 Hz, 1H, H-30), 8.08
and 8.15 (br s, 2H, NH2), 8.45 (s, 1H, ArACH@NA), 8.52 (s, 1H, H-
60), 11.48 (s, 1H, OH). 13C NMR (d6-DMSO, 100 MHz): d 55.9
(OCH3), 113.3, 116.3, 116.8, 120.4, 120.9, 122.3, 124.8, 132.1,
138.7, 141.6, 145.9, 156.2 (aromatic carbons), 159.0 (C@N),
177.8 (C@S). HRMS (+eV): m/z (% rel. intensity): 330.1005
[M + H]+ (100).
146.1, 148.6 and 148.8 (aromatic carbons), 161.3 (ArACH@NA),
177.8 (C@S). HRMS (+eV): m/z (% rel. intensity): 360.1104
[M + Na]+ (100).
Sensor 3d
Sensor 3b
Yield: 75.95%, m.p. = 215 °C. IR (KBr, cmꢁ1); 3451, 3366, 3325,
1601, 1469, 1532, 1129, 864, 827, 787. 1H NMR (d6-DMSO,
400 MHz): d 3.82 and 3.90 (s, 6H, 2 ꢂ OCH3), 7.06 (br s, 1H, H-
4), 7.42 (br m, 4H, H-2,5,6 and 60), 8.11 and 8.17 (br s, 2H,
NH2), 8.31 (s, 1H, ArACH@NA), 8.48 (s, 1H, H-20), 11.50 (s, 1H,
OH). 13C NMR (d6-DMSO, 100 MHz): d 55.3 and 55.9 (2 ꢂ OCH3),
101.2, 105.7, 115.8, 116.9, 119.4, 120.7, 130.1, 138.4, 144.6,
148.8, 149.9 and 153.3 (aromatic carbons), 160.0 (ArACH@NA),
177.8 (C@S). HRMS (+eV): m/z (% rel. intensity): 382.0938
[M + Na]+ (100).
Yield: 58.92%, m.p. = 223 °C. IR (KBr, cmꢁ1); 3306, 1601, 1531,
1559, 1111, 766, 686. 1H NMR (d6-DMSO, 400 MHz): d 3.91 (s,
3H, OCH3), 7.42 (s, 1H, H-20), 7.51 (m, 3H, H-3,4,5), 7.84 (d,
J = 7.5 Hz, H-2 and H-6), 8.10 and 8.16 (br s, 2H, NH2), 8.30 (br s,
1H, ArACH@N), 8.48 (br d, J = 2.2 Hz, 1H, H-60), 11.49 (br s, 1H,
OH). 13C NMR (d6-DMSO, 100 MHz): d 56.0 (OCH3), 101.3, 119.1,
120.8, 122.1, 129.3, 130.6, 138.4, 144.9, 148.7, and 149.4 (aromatic
carbons), 152.0 (ArAC@NH–), 177.9 (C@S). HRMS (+eV): m/z (% rel.
intensity): 352.0831 [M + Na]+ (100).
Sensor 3e
Sensor 3c
Yield: 55.09%, m.p. = 213 °C. IR (KBr, cmꢁ1); 3338, 1605, 1474,
1529, 1128, 753. 1H NMR (d6-DMSO, 400 MHz): d 3.89 (s, 3H,
OCH3), 7.28 (s, 1H, H-60), 7.69 (d, 1H, J = 7.6 Hz, H-6), 7.69 (t, 1H,
J = 7.6 Hz, H-4), 7.82 (t, 1H, J = 7.6 Hz, H-5), 8.07 (d, 1H, J = 7.6 Hz,
H-3), 8.10 (s, 1H, H-20), 8.17 and 8.38 (s, 2H, ANH2), 8.45 (s, 1H,
ArACH@NA), 11.51 (s, 1H, OH). 13C NMR (d6-DMSO, 100 MHz): d
55.9 (OCH3), 100.7, 118.7, 120.9, 121.1, 124.2, 130.6, 133.6,
138.0, 144.6, 144.9, 146.4 and 148.9 (aromatic carbons), 150.9
(C@N), 177.9 (C@S). HRMS (+eV): m/z (% rel. intensity): 397.0670
[M + Na]+ (100).
Yield: 45.63%, m.p. = 235–236 °C. IR (KBr, cmꢁ1); 3356, 1596,
1503, 1539, 1123, 834. 1H NMR (d6-DMSO, 400 MHz): d 3.87
and 3.92 (s, 6H, 2 ꢂ OCH3), 7.07 (d, J = 7.9 Hz, 2H, H-3), 7.37
(s, 1H, H-60), 7.81 (d, J = 8.4 Hz, 2H, H-2), 8.05 and 8.13 (br s,
2H, NH2), 8.19 (s, 1H, ArACH@NA), 8.45 (s, 1H, H-20), 11.46
(s, 1H, OH). 13C NMR (d6-DMSO, 100 MHz): d 55.5 and 55.9
(2 ꢂ OCH3), 101.4, 114.5, 118.2, 120.7, 124.0, 138.5, 144.9,