.8Hz,lH,Ph 3'-H),7.41(d,J = 7.8Hz, lH,5'-H),7.52(t,J = 7.8Hz,lH,Ph 4'-H),7.57(t,J = 7.8Hz,lH,Quin 6-H),7.75((1, J = 7.8Hz,lH,Ph 6'-H) ,7.78(d ,J = 7.8Hz,lH,Quin 8-H), 7.86(t ,J = 7.8Hz , lH,Quin 7-H), 7.95(d ,J=15.6Hz,lH,=CH) ,8.15(d,J = 7.8Hz,lH,Quin 5-H), 12.59( s , ΙΗ,ΝΗ). ESI-HRMS m/z:Ci8Hi5N2〇2([M+H] + )計算值:291 · 1134;實測值:291 · 1128·
[0171] 實施例13
[0172] (E)-2-(3-(4-甲基苯基)-3-氧代丙-1-烯基)喹唑啉-4(3H)_酮(化合物13)
[0173] 收率:62%,白色固體,1114.246-2491.? 匪R(600MHz,DMS0-d6)S:2.43(s,3H, CH3),7.32(d,J=15.6Hz,lH,=CHC0),7.44(d,J = 7.8Hz,2H,Ph 3'-H,5'-H),7.58(t,J = 7.8Hz,lH,Quin 6-H), 7.77(d ,J = 7.8Hz , lH,Quin 8-H) ,7.87(td ,J = 7.8,1.2Hz , lH,Quin 7-H),8.06(d,J = 7.8Hz,2H,Ph2,-H,6,-H),8.16(d,J = 7.8Hz,lH,Quin 5-H) ,8.39(d,J = 15.6Hz,lH,=CH) ,12.64(s, 1H,NH).ESI-HRMS m/z:Ci8Hi5N2〇2([M+H] + )計算值:291.1134; 實測值:291.1129.
[0174] 實施例14
[0175] (E)-2-(3-(2,4-二甲基苯基)-3-氧代丙-1-烯基)喹唑啉-4(3H)_酮(化合物14)
[0176] 收率:45 %,淺黃色固體,m · p · 200-202°C · 4 NMR(600MHz,DMS〇-d6) δ : 2 · 36 (s,3H, 4,-CH3),2.44(s,3H,2,-CH3),7.17(d,J=15.6Hz,lH,=CHC0),7.20(s,lH,Ph 3,-H) ,7.22 (d,J = 7.8Hz,lH,Ph 5'-H),7.57(td,J = 7.8,1.2Hz,lH,Quin 6-H),7.75(d,J = 7.8Hz,lH, Quin 8-H),7.76(d,J = 7.8Hz,lH,Ph 6'-H),7.86(td,J = 7.8,1.2Hz,lH,Quin 7-H),8.01 (d ,J= 15.6Hz, 1H, =CH) ,8.15(dd ,J = 7.8,1.2Hz,lH,Quin 5-H), 12.59(s , ΙΗ,ΝΗ) .ESI-HRMS m/z: C19H17N2O2 ([M+H] +)計算值:305 · 1290;實測值:305 · 1287 ·
[0177] 實施例15
[0178] (E)-2-(3-(4-溴苯基)-3-氧代丙-1-烯基)喹唑啉-4(3H)_酮(化合物15)
[0179] 收率:58% ,白色固體,1114.232-2341.? 匪R(600MHz,DMS0-d6M:7.34(d,J = 15.6Hz,lH,=CHC0),7.59(t ,J = 7.8Hz,lH,Quin 6-H), 7.77(d ,J = 7.8Hz , lH,Quin 8-H), 7.85(d,J = 8.4Hz,2H,Ph 3 '-H, 5 '-H), 7.87 (t, J = 7.8Hz , 1H, Quin 7-H), 8.07(d, J = 8.4Hz,2H,Ph 2'-H,6'-H) ,8.16((1, J = 7.8Hz,lH,Quin 5-H) ,8.34((1, J= 15.6Hz,1H,= CH),12 · 63(s,1H,NH) ·ESI-HRMS m/z : Ci7Hi2BrN2〇2( [M+H] + )計算值:355 · 0082,357 · 0062;實 測值:355.0080,357.0059.
[0180] 實施例16
[0181] (E)-2-(3-(4-氯苯基)-3-氧代丙-1-烯基)喹唑啉-4(3H)_酮(化合物16)
[0182] 收率:28%,白色固體,1114.231-2331.? 匪R(600MHz,DMS0-d6M:7.33(d,J = 15.6Hz,lH,=CHC0),7.59(t,J = 7.8Hz,lH,Quin6-H),7.70(d,J = 8.4Hz,2H,Ph3'-H,5'-H) ,7.77(d ,J = 7.8Hz,lH,Quin 8-H), 7.87(t ,J = 7.8Hz , lH,Quin 7-H) ,8.15(d ,J = 8.4Hz, 2H,Ph 2,-H,6,-H),8.16(d ,J = 7.8Hz,lH,Quin 5-H) ,8.36(d ,J= 15.6Hz , 1H, =CH), 12.63 (s, ΙΗ,ΝΗ) .ESI-HRMS m/z: Ci7HiiClN2〇2([M+H] + )計算值:311.0587,313.0558;實測值: 311.0585,313.0565.
[0183] 實施例17
[0184] (E)-2-(3-(3,4-二氯苯基)-3-氧代丙-1-烯基)喹唑啉-4(3H)_酮(化合物17)
[0185] 收率:35%,白色固體,1114.229-2311.? 匪R(600MHz,DMS0-d6M:7.33(d,J = 15.6Hz,lH,=CHC0),7.59(t ,J = 7.8Hz,lH,Quin 6-H), 7.78(d ,J = 7.8Hz , lH,Quin 8-H), 7.87(td ,J = 7.8,1.2Hz,lH,Quin 7-H), 7.90(d ,J = 8.4Hz , 2H,Ph 5'-H) ,8.08(dd ,J = 8.4, 1.8Hz,lH,Ph 6'-H) ,8.16(d ,J = 7.8Hz,lH,Quin 5-H), 8.33(d ,J= 1.8Hz , lH,Ph 2'-Η), 8 · 33(d,J= 15.6Hz,lH,=CH),12.61 (s, ΙΗ,ΝΗ) .ESI-HRMS m/z: Ci7HiiCl2N2〇2([M+H] + )計算 值:345.0198,347.0168;實測值:345.0195,347.0164.
[0186] 實施例18
[0187] (E)-2-(3-氧代-3-(4-氟苯基)丙-1-烯基)喹唑啉-4(3H)_酮(化合物18)
[0188] 收率:22%,白色固體,1114.252-2541.? 匪R(600MHz,DMS0-d6M:7.33(d,J = 15.6Hz,lH,=CHC0),7.47(d,J = 8.4Hz,2H,Ph3'-H,5'-H),7.59(t,J = 7.8Hz,lH,Quin6-H) ,7.77(d ,J = 7.8Hz,lH,Quin 8-H), 7.87(t ,J = 7.8Hz , lH,Quin 7-H) ,8.16(d ,J = 7.8Hz, lH,Quin 5-H) ,8.24(dd,J = 8.4,5.4Hz,2H,Ph 2'-H,6'-H) ,8.38((1, J= 15.6Hz,1H,=CH), 12 · 63(s,1H,NH) ·ESI-HRMS m/z: Ci7Hi2FN2〇2( [M+H] + )計算值:295 ·0883;實測值:295 ·0877 ·
[0189] 實施例19
[0190] (E)-2-(3-(2,4-二氟苯基)-3-氧代丙-1-烯基)喹唑啉-4(3H)_酮(化合物19)
[0191 ]收率:35%,淺黃色固體,m·p · 204-207°C · 4 NMR(600MHz,DMS〇-d6)δ: 6 · 97(dd,J = 8.4,1.8Hz,lH,Ph 5'-H),7.03(dd,J = 8.4,1.8Hz,lH,Ph 6'-H),7.31(d,J=15.6Hz,lH,= CHCO) ,7.57(t ,J = 7.8Hz,lH,Quin6-H) ,7.76(d ,J = 7.8Hz,lH,Quin 8-H), 7.86( t, J = 7.8Hz,lH,Quin 7-H), 7.91 (t ,J = 9.0Hz , lH,Ph 3'-H) ,8.10(d ,J = 15.6Hz, 1H, =CH) ,8.15 (d,J = 7 · 8Hz , 1H, Quin 5-H), 12 · 63 (s, 1H,NH) · ESI-HRMS m/z : C17H11F2N2O2([M+H] +)計算值: 313.0789;實測值:313.0787.
[0192] 實施例20
[0193] (E)-2-(3-(4-三氟甲基苯基)-3-氧代丙-1-烯基)喹唑啉-4(3H)_酮(化合物20)
[0194] 收率:41%,白色固體,1114.234-2371.? 匪R(600MHz,DMS0-d6M:7.37(d,J = 15.6Hz,lH,=CHC0),7.59(t ,J = 7.8Hz,lH,Quin 6-H), 7.77(d ,J = 7.8Hz , lH,Quin 8-H), 7.87(t,J = 7.8Hz, lH,Quin 7-H),8.00(d,J = 8.4Hz,2H,Ph 3'-H,5'-H) ,8.16(d,J = 7.8Hz,lH,Quin 5-H),8.31((1, J = 8.4Hz,2H,Ph 2,-H,6'-H),8.37((1, J= 15.6Hz,1H,= CH),12 · 66(s,1H,NH) · ESI-HRMS m/z : Ci8Hi2F3N2〇2( [M+H] + )計算值:345 · 0851;實測值: 345.0849.
[0195] 準備例2
[0196] 4-氧代喹唑啉-2-基作為A環(huán)的查耳酮類似物(化合物21-41)的合成
[0197] 2-乙基喹唑啉-4(3H)_酮(IX)的制備
[0?98] 在反應瓶中加入2-氨基苯甲酸甲酯(6 · 04g,40mmol)、乙酸銨(7 · 70g,lOOmmo 1)和 原丙酸三乙酯(2 5 mL),加熱至回流3 0 h。冷卻至室溫,濾集析出的固體,瞭干,用乙醇重結晶, 得白色固體5.018,收率72%,111.口.228-229°(3(文獻[父11,1#11,!1.八11^1103(^(18 38認6 nitrogen-containing motifs in copper-catalyzed domino synthesis of N_ heterocycles.J.Org.Chem.2011,76,3846-3852]m.p.229-231°C) </H NMR(600MHz,DMS0-d6)5: 1.25(t,J = 7.8Hz,3H,CH2CH3) ,2.63(q,J = 7.8Hz,2H,CH2CH3) ,7.46(td,J = 7.8, 1.2Hz,lH,Quin 6-H), 7.60(d ,J = 7.8Hz , lH,Quin 8-H) ,7.77(td ,J = 7.8,1.2Hz , lH,Quin 7-H),8.09(dd,J = 7.8,1.2Hz, 1H,Quin 5-H), 12.16(s, 1H,NH).ESI-HRMS m/z:Ci〇HnN20( [M +H] + )計算值:175.0871;實測值:175.0865.
[0199] 2-乙酰基喹唑啉-4(3H)_酮(V)的制備
[0200] 將 2-乙基喹唑啉-4(3H)_ 酮(IX)(0·52g,3mmol)、二氧化硒(0·66g,6mmol)和l,4-二氧六環(huán)(50mL)的混合物加熱至沸,回流反應lh。冷卻至室溫,濾除少量黑色不溶物,用5% 碳酸氫鈉溶液將濾液調節(jié)pH值至7-8。濾除析出的固體,濾液用二氯甲烷萃取(15mLX4),合 并有機相,用飽和氯化鈉溶液洗滌,無水硫酸鈉干燥過夜。旋轉蒸發(fā)除去溶劑,粗品用甲醇 重結晶,得棕黃色固體〇.34g,收率61%,m.p.l74-176°C<aH 匪R(600MHz,DMS0-d6)S:2.64 (s,3H,CH3C0),7.66(td,J = 7.8,1.2Hz,lH,Quin 6-H),7.85(dd,J = 7.8,1.2Hz,lH,Quin 8-H) ,7.91( td,J = 7.8,1.2Hz,lH, Quin 7-H), 8.19(dd, J = 7.8,1.2Hz , 1H, Quin 5-H), 12· 25(s, 1H,NH) .ESI-HRMS m/z:Ci〇H9N2〇2( [M+H] + )計算值:189.0664;實測值:189.0658.
[0201] 目標化合物21-41的合成通法
[0202] 將2-乙?;蜻?4(3H)_酮(V)(0.17g,1.0mmol)與甲醇(10mL)混合,加入30% K0H溶液(1. OmL),攪拌20min,再加入不同的芳香醛或芳雜醛(1. lmmol),室溫攪拌反應24h。 用6mol/L鹽酸調節(jié)反應液的pH值至6-7,攪拌20min,濾集析出的固體,瞭干。粗品用甲醇重 結晶,得目標化合物21-41。
[0203] 實施例21
[0204] (E)-2-(3-苯基丙烯?;?喹唑啉-4(3H)_酮(化合物21)
[0205] 收率:48%,棕色固體,1114.171-1731.? NMR(600MHz,DMS0-d6)S:7.52(m,3H,Ph 3'-H,4'-H,5'-H),7.69(m,lH,Quin 6-H),7.87(m,2H,Ph2,-H,6'-Η),7.94((1, J= 16.2Hz, lH,=CHC0),7.95(m,2H,Quin 7-H,8-H) ,8.12(d ,J=16.2Hz, 1H, =CH) ,8.22(d ,J = 7.2Hz, 1H,Quin 5-H), 12 · 42(s, ΙΗ,ΝΗ) .ESI-HRMS m/z: Ci7Hi3N2〇2( [M+H] + )計算值:277 · 0977;實測 值:277.0971.
[0206] 實施例22
[0207] (E)-2-(3-(2-甲氧基苯基)丙烯?;?喹唑啉-4(3H)_酮(化合物22)
[0208] 收率:39% ,棕色固體,m.p. 175-1781.? 匪R(600MHz,DMS0-d6M:3.95(s,lH, 0CH3) ,7.08( t,J = 7.8Hz, lH,Ph 5 '-Η), 7.17 (d, J = 7.8Hz , 1H, Ph 3 '-H), 7.52 (t, J = 7.8Hz,lH,Ph 4'-H),7.68(m,lH,Quin 6-H),7.85(d,J=7.8Hz,lH,Ph 6'-H),7.94(m,2H, Quin 7-H,8-H),8.17(s,2H,CH = CH),8.22(d,J = 7.8Hz,lH,Quin 5-H),12.37(s,lH,NH) ? ESI-HRMS m/z: CisHi5N2〇3( [M+H] + )計算值:307 · 1083;實測值:307 · 108