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[9] Physical and spectral data of target compounds. 12: mp: 204–206 8C; IR (KBr, cmÀ1): 3430.6, 2922.2, 2852.5, 1585.4, 1504.0, 1444.9, 1406.7,
1356.3, 1250.3; ESI-MS m/z: 488.2 (M+H)+; 1H NMR (300 MHz, DMSO-d6): d 3.77–3.74 (m, 4H), 4.00 (s, 4H), 5.66 (s, 2H), 7.35–7.24 (m,
6H), 7.55 (d, 1H, J = 7.5 Hz), 7.70–7.62 (m, 2H), 7.79 (dd, 1H, J1 = 2.1 Hz, J2 = 8.7 Hz), 8.11 (s, 1H), 8.50 (d, 1H, J = 0.9 Hz), 8.59 (d, 1H,
J = 7.8 Hz), 9.38 (s, 1H), 9.70 (s, 1H). 13: mp: 225–227 8C; IR (KBr, cmÀ1): 3428.9, 2921.2, 2852.3, 1585.5, 1504.1, 1445.3, 1406.7, 1356.0,
1250.3; ESI-MS m/z: 501.6 (M+H)+; 1H NMR (300 MHz, DMSO-d6): d 2.24 (s, 3H), 3.75 (s, 4H), 3.99 (s, 4H), 5.60 (s, 2H), 7.13 (d, 4H,
J = 3.6 Hz), 7.34–7.30 (m, 1H), 7.55 (d, 1H, J = 7.2 Hz), 7.68–7.62 (m, 2H), 7.78 (d, 1H, J = 9.3 Hz), 8.09 (s, 1H), 8.47 (s, 1H), 8.60–8.58 (m,
1H), 9.37 (d, 1H, J = 6.0 Hz), 9.69 (s, 1H). 14: mp: 216–218 8C; IR (KBr, cmÀ1): 3372.8, 2959.2, 2853.7, 1587.7, 1505.6, 1447.3, 1407.3,
1358.5, 1250.5. ESI-MS m/z: 505.6 (M+H)+; 1H NMR (300 MHz, DMSO-d6): d 3.75 (s, 4H), 3.99 (s, 4H), 5.69 (s, 2H), 7.13–7.04 (m, 3H), 7.38–
7.30 (m, 2H), 7.55 (d, 1H, J = 8.4 Hz), 7.72–7.62 (m, 2H), 7.81 (d, 1H, J = 8.7 Hz), 8.13 (s, 1H), 8.52 (s, 1H), 8.59 (d, 1H, J = 8.1 Hz), 9.39 (s,
1H), 9.70 (s, 1H). 15: mp: 202–206 8C; IR (KBr, cmÀ1): 3429.8, 2922.1, 2854.9, 1585.9, 1504.6, 1445.3, 1407.4, 1356.6, 1250.5. ESI-MS m/z:
521.6 (Cl = 35), 523.7 (Cl = 37) (M+H)+; 1H NMR (300 MHz, DMSO-d6): d 3.76 (t, 4H, J = 4.5 Hz), 4.00 (s, 4H), 5.67 (s, 2H), 7.26 (d, 2H,
J = 8.4 Hz), 7.35–7.30 (m, 1H), 7.39 (d, 2H, J = 8.4 Hz), 7.55 (d, 1H, J = 7.8 Hz), 7.71–7.62 (m, 2H), 7.82–7.79 (m, 1H), 8.12 (s, 1H), 8.51 (s,
1H), 8.59 (d, 1H, J = 7.8 Hz), 9.39 (s, 1H), 9.70 (s, 1H). 16: mp: 237–239 8C; IR (KBr, cmÀ1): 3364.3, 2929.6, 2852.2, 1612.7, 1588.4, 1563.3,
1505.7, 1447.4, 1408.0, 1365.5, 1251.0. ESI-MS m/z: 485.8 (M+H)+; 1H NMR (300 MHz, DMSO-d6): d 1.69–1.63 (m, 6H), 4.01 (s, 4H), 5.66 (s,
2H), 7.35–7.23 (m, 6H), 7.54 (d, 1H, J = 7.5 Hz), 7.70–7.60 (m, 2H), 7.81–7.77 (m, 1H), 8.11 (s, 1H), 8.49 (d, 1H, J = 1.8 Hz), 8.58–8.55 (m,
1H), 9.34 (s, 1H), 9.64 (s, 1H). 17: mp: 202–206 8C; IR (KBr, cmÀ1): 3359.3, 2927.5, 2851.2, 1588.6, 1563.2, 1505.7, 1446.2, 1407.0, 1363.6,
1253.8. ESI-MS m/z: 500.0 (M+H)+; 1H NMR (300 MHz, DMSO-d6): d 1.69–1.61 (m, 6H), 2.24 (s, 3H), 4.00 (s, 4H), 5.60 (s, 2H), 7.17–7.10 (m,
4H), 7.31 (t, 1H, J = 8.1 Hz), 7.53 (d, 1H, J = 8.4 Hz), 7.68–7.60 (m, 2H), 7.77 (d, 1H, J = 9.0 Hz), 8.09 (s, 1H), 8.46 (s, 1H), 8.56 (d, 1H,
J = 7.8 Hz), 9.37 (s, 1H), 9.64 (s, 1H). 18: mp: 225–227 8C; IR (KBr, cmÀ1): 3346.0, 2925.9, 2852.4, 1588.1, 1563.6, 1503.8, 1447.6, 1407.2,
1361.2, 1255.9. ESI-MS m/z: 503.8 (M+H)+; 1H NMR (300 MHz, DMSO-d6): d 1.68–1.62 (m, 6H), 4.00 (s, 4H), 5.69 (s, 2H), 7.13–7.04 (m,
3H), 7.40–7.29 (m, 2H), 7.72–7.53 (m, 3H), 7.82 (d, 1H, J = 9.6 Hz), 8.13 (d, 1H, J = 0.9 Hz), 8.58–8.52 (m, 2H), 9.37 (s, 1H), 9.65 (s, 1H). 19:
mp: 216–220 8C; IR (KBr, cmÀ1): 3392.2, 2931.8, 2851.7, 1587.2, 1563.1, 1507.0, 1445.3, 1405.4, 1359.8, 1255.2. ESI-MS m/z: 519.7
(Cl = 35), 521.7 (Cl = 37) (M+H)+; 1H NMR (300 MHz, DMSO-d6): d 1.69–1.62 (m, 6H), 4.01 (s, 4H), 5.67 (s, 2H), 7.41–7.25 (m, 5H), 7.54 (d,
1H, J = 8.1 Hz), 7.71–7.61 (m, 2H), 7.81–7.77 (m, 1H), 8.12 (s, 1H), 8.49 (s, 1H), 8.58–8.56 (m, 1H), 9.33 (s, 1H), 9.64 (s, 1H). 20: mp: 96–
100 8C; IR (KBr, cmÀ1): 3423.4, 2973.1, 2929.5, 1582.9, 1563.8, 1532.5, 1503.3, 1406.5, 1357.5. ESI-MS m/z: 474.0 (M+H)+; 1H NMR
(300 MHz, DMSO-d6): d 1.25 (s, 6H), 3.80 (s, 4H), 5.66 (s, 2H), 7.35–7.23 (m, 6H), 7.54 (d, 1H, J = 7.2 Hz), 7.70–7.60 (m, 2H), 7.81–7.77 (m,
1H), 8.11 (d, 1H, J = 0.9 Hz), 8.50 (d, 1H, J = 1.5 Hz), 8.58–8.55 (m, 1H), 9.33 (s, 1H), 9.64 (s, 1H). 21: mp: 95–99 8C; IR (KBr, cmÀ1): 3883.6,
2971.7, 2929.3, 1586.1, 1563.4, 1531.0, 1504.6, 1437.6, 1405.8, 1356.7. ESI-MS m/z: 487.9 (M+H)+; 1H NMR (300 MHz, DMSO-d6): d 1.24 (s,
6H), 2.24 (s, 3H), 3.80 (s, 4H), 5.60 (s, 2H), 7.17–7.10 (m, 4H), 7.35–7.30 (m, 1H), 7.54 (d, 1H, J = 6.9 Hz), 7.68–7.60 (m, 2H), 7.79–7.75 (m,
1H), 8.09 (d, 1H, J = 0.9 Hz), 8.47 (s, 1H), 8.56 (dd, 1H, J1 = 1.2 Hz, J2 = 8.1 Hz), 9.35 (s, 1H), 9.63 (s, 1H). 22: mp: 89–91 8C; IR (KBr, cmÀ1):
3426.7, 2972.0, 2928.7, 1588.6, 1564.0, 1533.8, 1505.2, 1438.6, 1406.9, 1358.3. ESI-MS m/z: 491.7 (M+H)+; 1H NMR (300 MHz, DMSO-d6): d
1.25 (s, 6H), 3.81 (s, 4H), 5.69 (s, 2H), 7.12–7.04 (m, 3H), 7.40–7.30 (m, 2H), 7.54 (d, 1H, J = 7.2 Hz), 7.71–7.60 (m, 2H), 7.82–7.78 (m, 1H),
8.12 (d, 1H, J = 0.9 Hz), 8.51 (s, 1H), 8.58–8.55 (m, 1H), 9.32 (s, 1H), 9.63 (s, 1H). 23: mp: 106–108 8C; IR (KBr, cmÀ1): 3386.8, 3273.9,
2973.2, 2930.8, 1585.6, 1563.6, 1530.7, 1507.9, 1437.6, 1405.9, 1356.7. ESI-MS m/z: 507.7 (Cl = 35), 509.7 (Cl = 37) (M+H)+; 1H NMR
(300 MHz, DMSO-d6): d 1.26 (s, 6H), 3.80 (s, 4H), 5.67 (s, 2H), 7.40–7.24 (m, 5H), 7.54 (d, 1H, J = 7.5 Hz), 7.70–7.60 (m, 2H), 7.82–7.78 (m,
1H), 8.12 (s, 1H), 8.51 (d, 1H, J = 1.2 Hz), 8.58–8.55 (m, 1H), 9.33 (s, 1H), 9.64 (s, 1H). 24: mp: 124–125 8C; IR (KBr, cmÀ1): 3403.7, 2920.8,
1589.8, 1566.2, 1505.9, 1402.8. ESI-MS m/z: 445.9 (M+H)+; 1H NMR (300 MHz, DMSO-d6): d 3.35 (s, 6H), 5.67 (s, 2H), 7.37–7.25 (m, 6H),
7.56 (d, 1H, J = 8.1 Hz), 7.65–7.62 (m, 1H), 7.74 (d, 2H, J = 5.1 Hz), 8.13 (s, 1H), 8.43 (s, 1H), 8.61–8.59 (m, 1H), 9.65 (s, 1H). 25: mp: 199–
200 8C; IR (KBr, cmÀ1): 3348.9, 2923.2, 2853.5, 1588.2, 1566.6, 1547.6, 1503.3, 1402.6, 1361.2. ESI-MS m/z: 479.8 (Cl = 35), 481.7 (Cl = 37)
(M+H)+; 1H NMR (300 MHz, DMSO-d6): d 3.34 (s, 6H), 5.66 (s, 2H), 7.40–7.24 (m, 5H), 7.55–7.52 (m, 1H), 7.70–7.60 (m, 2H), 7.83–7.79 (m,
1H), 8.12 (d, 1H, J = 0.9 Hz), 8.50 (d, 1H, J = 1.2 Hz), 8.61–8.58 (m, 1H), 9.36 (s, 1H), 9.65.(s, 1H).