L3): = 195.1, 187.2, 157.1, 134.5, 133.9, 127.eight, 127.6, 115.six, 113.four, 55.two, 42.six, 31.five, 31.1, 27.9, 12.2; Anal. for C26H37N3O6; calcd: C, 64.05; H, 7.65; N, 8.62;Located: C, 64.11; H, 7.64; N, eight.59; LC/MS (ESI): m/z = 487 [M]+.5((4Chlorophenyl)(2hydroxy4,4dimethyl6oxocy clohex1en1yl)methyl)1,3dimethyl2,6dioxo1,two,3,6tet rahydropyrimidin4olate diethylaminium salt 4p4m; colorless crystalline material; m.p: 159 ; (98 , 671 mg, 1.47 mmol). IR (KBr, cm-1): 3150, 2959, 1667, 1617, 1585, 1422, 1256, 1227;1H NMR (400 MHz, CDCl3):4p; oily material (97 ; 715 mg, 1.45 mmol). IR (KBr, cm-1): 3151, 2955, 2868, 2497, 1675, 1580, 1481, 1444,Barakat et al. Chemistry Central Journal (2015) 9:Web page 5 of1379, 1258, 1206;1H NMR (400 MHz, CDCl3): 15.02 (s, 1H, OH), 7.12.95(m, 4H, Ph), 5.87 (s, 1H, benzyl-H), 3.30 (s, 12H, 4CH3), 2.90(q, 4H, J = 7.three Hz, CH2CH3), two.38 (s, 4H, CH2), 1.20(t, 6H, J = 7.three Hz, CH2CH3), 1.16(s, 3H, CH3), 1.04(s, 3H, CH3); 13C NMR (100 MHz, CDCl3): = 198.1, 181.0, 152.five, 141.5, 130.six, 128.three, 128.two, 128.0, 127.9, 115.two, 90.7, 65.9, 49.8, 42.three, 32.four, 31.5, 31.two, 29.six, 28.four, 27.six, 15.three, 11.4; Anal. for C25H34ClN3O5; calcd: C, 61.03; H, six.97; Cl, 7.21; N, eight.54;Identified: C, 61.06; H, 7.00; Cl, 7.18; N, 8.57; LC/MS (ESI): m/z = 492 [M]+.five((4Bromophenyl)(2hydroxy4,4dimethyl6oxocy clohex1en1yl)methyl)1,3dimethyl2,6dioxo1,two,three,6tet rahydropyrimidin4olate diethylaminium salt 4qJ = 7.three Hz, CH2CH3), two.30(d, 4H, J = 14.7 Hz, CH2), 1.15(t, 6H, J = 7.three Hz, CH2CH3), 1.10(s, 3H, CH3), 1.00(s, 3H, CH3); 13C NMR (100 MHz, CDCl3): = 161.six, 153.two, 145.5, 141.six, 129.1, 128.2, 127.8, 125.8, 88.five, 49.1, 41.9, 27.five, 11.five; Anal. for C25H34N4O7; calcd: C, 59.75; H, six.82; N, 11.15; Identified: C, 59.72; H, six.80; N, 11.17; LC/MS (ESI): m/z = 502[M]+.5((2Hydroxy4,4dimethyl6oxocyclohex1en1yl) (four(dimethylamino)phenyl)methyl)1,3dimethyl2,6di oxo1,2,three,6tetrahydropyrimidin4olate diethylaminium salt 4t4q; an oily material (95 , 761 mg, 1.42 mmol). IR (KBr, cm-1): 3155, 2955, 2867, 2500, 1674, 1579, 1430, 1376, 1204;1H NMR (400 MHz, CDCl3): 15.20 (s, 1H, OH), 7.34 (d, 2H, J = 8.1178566-52-3 Chemscene 0 Hz, Ph), 6.87789-35-3 Chemical name 98 (d, 2H, J = 8.PMID:35345980 0 Hz, Ph), five.79 (s, 1H, benzyl-H), three.27 (s, 12H, 4CH3), two.99(q, 4H, J = 7.three Hz, CH2CH3), two.40 (d, 2H, J = five.1 Hz, CH2), 2.28(m, 2H, CH2), 1.29(t, 6H, J = 7.three Hz, CH2CH3), 1.18(s, 3H, CH3), 1.04(s, 3H, CH3); 13C NMR (one hundred MHz, CDCl3): = 199.1, 191.two, 164.8, 152.4, 142.eight, 132.5, 131.0, 129.9, 128.7, 128.6, 118.9, 115.9, 90.6, 51.2, 45.eight, 42.3, 32.7, 31.5, 29.five, 28.five, 28.3, 27.six, 11.4; Anal. for C25H34BrN3O5; calcd: C, 55.97; H, six.39; Br, 14.89; N, 7.83;Discovered: C, 56.00; H, six.40; Br, 14.86; N, 7.82; LC/MS (ESI): m/z = 536 [M]+.5((3Bromophenyl)(2hydroxy4,4dimethyl6oxocy clohex1en1yl)methyl)1,3dimethyl2,6dioxo1,two,3,6tet rahydropyrimidin4olate diethylaminium salt 4r4t; a beige material; m.p: 165 ; (73 , 550 mg, 1.1 mmol). IR (KBr, cm-1): 3055, 2950, 2865, 2500, 1669, 1580, 1510, 1427, 1373, 1255, 1214;1H NMR (400 MHz, CDCl3): 15.33 (s, 1H, OH), 7.02 (d, 2H, J = 8.0 Hz, Ph), six.75 (d, 2H, J = 8.8 Hz, Ph), five.69 (s, 1H, benzylH), 3.70 (s, 12H, 4CH3), 3.01 (s, 6H, N(CH3)two), 2.89(q, 4H, J = 7.3 Hz, CH2CH3), two.31(d,4H, J = 14.7 Hz, CH2), 1.15(t, 6H, J = 7.three Hz, CH2CH3), 1.12(s, 3H, CH3), 1.00(s, 3H, CH3); 13C NMR (one hundred MHz, CDCl3): = 161.6, 153.two, 145.5, 141.six, 129.1, 128.2, 127.8, 125.eight, 88.five, 49.1, 41.9, 41.8, 27.5, 11.5; Anal. for C27H39N4O5; calcd: C, 64.91; H, 7.87; N, 11.21;Located: C, 64.90; H, 7.87; N, 11.23; LC/MS (ESI): m/z = 499.29[M]+.five((.