实施例4:化合物对DNA促旋酶活性的测定
在DNA超螺旋实验中,测定化合物对DNA促旋酶活性的影响。具体如下:先配制好5×DNA促旋酶反应缓冲溶液,它由如下组分组成35mM Tris-HCl,24mM KCl,4mM MgCl2,2mM DTT,1.75mM ATP,5mM spermidine,0.1mg/ml BSA和6.5%甘油(pH7.5)。将4μL的5×DNA促旋酶反应缓冲溶液加入到11.3μL的水中,然后加入2μL松弛型DNA,再加入不同2μL不同浓度的受试化合物和0.7μLDNA促旋酶(5U/μL),37℃条件下反应1小时。加20μL氯仿-异戊醇(24/1)和20μL终止缓冲液终止反应,终止液的组成如下:40%蔗糖,100mM Tris.HCl(pH7.5),1mM EDTA,0.5mg/ml溴酚蓝。然后用1%的琼脂糖电泳,50V电压,电泳3小时,溴化乙锭(EB)染色,凝胶成像仪成像。IC50是指当受试化合物对酶活性抑制为50%时,受试化合物的浓度,结果见表2。
表2烷基连接喹啉酮-呋喃酮型化合物TyrRS和DNA旋转酶抑制活性(IC50),以及抗菌活性(MIC50)
结果表明:化合物5、6、12、17、22、27、29、34、48、63、78、79、85、86对表皮葡萄球菌表现出优良的抗菌活性;化合物5、12、19、22、27、29、34、48、63、78、79、88对肺炎克雷伯菌表现出优良的抗菌活性;化合物5、12、16、22、25、27、34、37、48、63、69、78、82、87对新型隐球菌表现出优良的抗菌活性。化合物5、12、17、22、27、34、37、48、63、78不仅有较好的抗菌活性而且对DNA促旋酶和TyrRS均起到了有效的抑制作用,证明是多靶点抗菌化合物。
本发明的上述实施例表明:在合成的烷基连接喹啉酮-呋喃酮型系列化合物中,一部分的抗菌作用高于阳性对照卡拉霉素、青霉素G和酮康唑,对大鼠的急毒实验表明,化合物5、12、22、27、34、48、63、78的剂量达到5g/kg(此剂量为药典规定的无毒剂量)时,没有发现大鼠有中毒迹象,因此在正常剂量下,它们作为药物应用是安全的。
化合物1-89的熔点、质谱及氢谱数据
3-苯基-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(1)
Mp178-180℃;EIMS m/z:521;1H NMR(DMSO-d6)δppm:1.28(t,3H),3.65(t,8H),4.45(t,2H),4.55(t,2H),4.55(m,2H),4.75(s,2H),6.12(s,1H),7.06(t,2H),7.38-7.46(m,3H),8.03(s,1H),9.51(s,1H),15.32(s,1H)。
3-苯基-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(2)
Mp235-237℃;EIMS m/z:533;1H NMR(DMSO-d6)δppm:2.03-2.11(m,4H),3.63(t,8H),4.24-4.30(m,1H),4.41(t,2H),4.48(t,2H),4.57(s,2H),6.72(s,1H),7.23-7.30(m,5H),7.93(s,1H),8.52(s,1H),15.23(s,1H)。
3-苯基-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(3)
Mp283-285℃;EIMS m/z:587;1H NMR(DMSO-d6)δppm:3.58(t,8H),4.45(t,2H),4.56(t,2H),4.72(s,2H),6.54(s,1H),6.86(dd,2H),7.08(dd,2H),7.56(s,1H),7.81-7.92(m,5H),8.06(s,1H),15.25(s,1H)。
3-苯基-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(4)
Mp203-205℃;EIMS m/z:553;H NMR(DMSO-d6)δppm:1.22-1.28(m,3H),1.56(t,3H),2.96-3.07(m,3H),3.13(d,2H),3.19(t,2H),4.31(t,2H),4.45(t,2H),4.63-4.72(m,2H),4.91(s,2H),7.28(t,2H),7.43-7.54(m,3H),7.90(s,1H),8.83(s,1H),15.36(s,1H)。
3-苯基-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(5)
Mp202-205℃;EIMS m/z:522;1H NMR(DMSO-d6)δppm1.32(t,3H),3.58(t,8H),4.33(t,2H),4.48(t,2H),4.63-4.72(m,2H),4.76(s,2H),7.29(t,2H),7.41-7.57(m,3H),7.80(s,1H),8.97(s,1H),15.30(s,1H)。
3-(2-氟苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(6)
Mp213-215℃;EIMS m/z:539;1H NMR(DMSO-d6)δppm:1.27(t,3H),3.58(t,8H),4.45(t,2H),4.53(t,2H),4.73-4.80(m,2H),4.89(s,2H),6.12(s,1H),7.24-7.30(m,2H),7.42(dd,1H),7.65-7.76(m,1H),8.03(s,1H),9.51(s,1H),15.31(s,1H)。
3-(2-氟苯基)-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(7)
Mp218-220℃;EIMS m/z:551;1H NMR(DMSO-d6)δppm:1.91-2.21(m,4H),3.51(t,8H),4.24-4.30(m,1H),4.41(t,2H),4.48(t,2H),4.59(s,2H),6.19(s,1H),7.24-7.31(m,2H),7.37(t,1H),7.64-7.71(m,1H),7.96(s,1H),8.64(s,1H),15.45(s,1H)。
3-(2-氟苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(8)
Mp233-235℃;EIMS m/z:605;1H NMR(DMSO-d6)δppm:3.61(t,8H),4.45(t,2H),4.52(t,2H),4.72(s,2H),6.51(s,1H),6.72(dd,2H),7.03(dd,2H),7.24-7.30(m,2H),7.41(dd,1H),7.53-7.65(m,1H),7.82(s,1H),7.92(s,1H),15.30(s,1H)。
3-(2-氟苯基)-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(9)
Mp249-251℃;EIMS m/z:571;1H NMR(DMSO-d6)δppm:1.22-1.31(m,3H),1.55(t,3H),2.96-3.07(m,3H),3.13(d,2H),3.19(t,2H),4.31(t,2H),4.45(t,2H),4.63-4.72(m,2H),4.91(s,2H),7.25-7.30(m,2H),7.43(dd,1H),7.51-7.65(m,1H),7.90(s,1H),8.83(s,1H),15.37(s,1H)。
3-(2-氟苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(10)
Mp240-242℃;EIMS m/z:556;1H NMR(DMSO-d6)δppm1.34-1.41(m,3H),3.54(t,8H),4.33(t,2H),4.48(t,2H),4.63-4.72(m,2H),4.76(s,2H),7.27-7.34(m,2H),7.43(dd,1H),7.57-7.65(m,1H),7.80(s,1H),8.97(s,1H),15.37(s,1H)。
3-(2-氯苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(11)
Mp247-249℃;EIMS m/z:555;1H NMR(DMSO-d6)δppm:1.29(t,3H),3.55(t,8H),4.47(t,2H),4.58(t,2H),4.75-4.80(m,2H),4.88(s,2H),6.13(s,1H),7.38-7.46(m,3H),7.57(dd,1H),8.03(s,1H),9.52(s,1H),15.34(s,1H)。
3-(2-氯苯基)-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(12)
Mp199-201℃;EIMS m/z:567;1H NMR(DMSO-d6)δppm:1.89-2.01(m,4H),3.60(t,8H),4.24-4.30(m,1H),4.41(t,2H),4.48(t,2H),4.59(s,2H),6.19(s,1H),7.35-7.41(m,2H),7.48(t,2H),7.96(s,1H),8.64(s,1H),15.30(s,1H)。
3-(2-氯苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(13)
Mp246-248℃;EIMS m/z:621;1H NMR(DMSO-d6)δppm:3.58(t,8H),4.43(t,2H),4.51(t,2H),4.72(s,2H),6.51(s,1H),7.05(dd,2H),7.14(dd,2H),7.23-7.35(m,3H),7.47(dd,1H),7.80(s,1H),7.91(s,1H),15.25(s,1H)。
3-(2-氯苯基)-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(14)
Mp243-245℃;EIMS m/z:587;H NMR(DMSO-d6)δppm:1.26-1.31(m,3H),1.57(t,3H),2.96-3.07(m,3H),3.13(d,2H),3.19(t,2H),4.31(t,2H),4.45(t,2H),4.63-4.72(m,2H),4.91(s,2H),7.28-7.38(m,3H),7.54(dd,1H),7.90(s,1H),8.83(s,1H),15.36(s,1H)。
3-(2-氯苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(15)
Mp246-248℃;EIMS m/z:556;1H NMR(DMSO-d6)δppm1.32-1.44(m,3H),3.53(t,8H),4.33(t,2H),4.48(t,2H),4.63-4.72(m,2H),4.76(s,2H),7.29-7.37(m,3H),7.55(dd,1H),7.80(s,1H),8.97(s,1H),15.38(s,1H)。
3-(2-羟基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(16)
Mp187-189℃;EIMS m/z:537;1H NMR(DMSO-d6)δppm:1.26(t,3H),3.55(t,2H),3.57-3.64(m,8H),4.42(t,2H),4.50(t,2H),5.04(s,2H),5.52(s,1H),6.20(s,1H),6.92(dd,1H)7.01-7.09(m,1H),7.32-7.40(m,2H),7.85(s,1H),8.78(s,1H),15.32(s,1H)。
3-(2-羟基苯基)-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(17)
Mp161-163℃;EIMS m/z:549;1H NMR(DMSO-d6)δppm:1.50-1.55(m,4H),4.70-4.77(m,1H),3.48-3.57(m,8H),4.45(t,2H),4.50(t,2H),4.95(s,2H),5.50(s,1H),6.25(s,1H),6.91(dd,1H)7.08-7.13(m,1H),7.34-7.40(m,2H),7.90(s,1H),8.81(s,1H),15.30(s,1H)。
3-(2-羟基苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(18)
Mp225-227℃;EIMS m/z:603;1H NMR(DMSO-d6)δppm:3.51(t,8H),4.47(t,2H),4.51(t,2H),4.95(s,2H),5.52(s,1H),6.28(s,1H),6.91(dd,1H),6.95(dd,2H),7.08-7.13(m,1H),7.17(dd,1H),7.34(m,2H),7.90(s,1H),8.82(s,1H),15.35(s,1H)。
3-(2-羟基苯基)-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(19)
Mp203-205℃;EIMS m/z:569;1H NMR(DMSO-d6)δppm:1.35(d,3H),1.52(t,3H),2.94-3.03(m,3H),3.15(t,2H),3.24(t,2H),4.33(t,2H),4.45(t,2H),5.71(s,1H),4.68-4.72(m,2H),4.92(s,2H),6.95(dd,1H),7.10-7.23(m,2H),7.46(dd,1H),7.76(s,1H),8.91(s,1H),15.23(s,1H)。
3-(2-羟基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(20)
Mp156-158℃;EIMS m/z:538;1H NMR(DMSO-d6)δppm:1.65-1.75(m,3H),3.56(t,8H),4.31(t,2H),4.46(t,2H),4.63-4.72(m,2H),4.75(s,2H),5.68(s,1H),6.91(dd,1H),7.08-7.13(m,2H),7.30-7.43(m,1H),7.64(s,1H),8.93(s,1H),15.24(s,1H)。
3-(3-氟苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(21)
Mp167-169℃;EIMS m/z:539;1H NMR(DMSO-d6)δppm:1.34(t,3H),3.54(t,8H),4.41(t,2H),4.53(t,2H),4.62-4.71(m,2H),4.87(s,2H),6.51(s,1H),6.92-7.03(m,2H),7.24-7.36(m,2H),8.42(s,1H),8.97(s,1H),15.26(s,1H)。
3-(3-氟苯基)-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(22)
Mp175-177℃;EIMS m/z:551;1H NMR(DMSO-d6)δppm:1.54-1.65(m,4H),3.55-3.67(m,8H),4.70-4.77(m,1H),4.45(t,2H),4.50(t,2H),4.95(s,2H),6.25(s,1H),6.98(dd,1H)7.13-7.20(m,1H),7.34-7.39(m,2H),7.90(s,1H),8.81(s,1H),15.30(s,1H)。
3-(3-氟苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(23)
Mp186-188℃;EIMS m/z:605;1H NMR(DMSO-d6)δppm:3.56(t,8H),4.65(t,2H),4.72(t,2H),4.81(s,2H),6.62(s,1H),6.93-7.02(m,4H),7.14(dd,2H),7.21-7.27(m,2H),7.30(s,1H),8.41(s,1H),15.22(s,1H)。
3-(3-氟苯基)-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(24)
Mp237-239℃;EIMS m/z:571;1H NMR(DMSO-d6)δppm:1.39(d,3H),1.56(t,3H),2.94-3.04(m,3H),3.14(t,2H),3.25(t,2H),4.33(t,2H),4.47(t,2H),4.68-4.72(m,2H),4.96(s,2H),7.08-7.13(m,2H),7.29-7.39(m,2H),7.78(s,1H),8.92(s,1H),15.22(s,1H)。
3-(3-氟苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(25)
Mp232-234℃;EIMS m/z:540;1H NMR(DMSO-d6)δppm 1.66-1.74(m,3H),3.24(t,8H),4.33(t,2H),4.48(t,2H),4.63-4.72(m,2H),4.78(s,2H),6.94-7.08(m,2H),7.22-7.30(m,1H),7.42-7.53(m,1H),7.64(s,1H),8.93(s,1H),15.21(s,1H)。
3-(3-氯苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(26)
Mp212-214℃;EIMS m/z:555;1H NMR(DMSO-d6)δppm:1.29(t,3H),3.56(t,8H),4.46(t,2H),4.53(t,2H),4.73-4.81(m,2H),4.84(s,2H),6.12(s,1H),7.25-7.36(m,1H),7.40(dd,1H),7.45-7.55(m,2H),8.03(s,1H),9.51(s,1H),15.32(s,1H)。
3-(3-氯苯基)-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(27)
Mp253-255℃;EIMS m/z:568;1H NMR(DMSO-d6)δppm:2.04-2.13(m,4H),3.70(t,8H),4.24-4.30(m,1H),4.41(t,2H),4.48(t,2H),4.59(s,2H),6.19(s,1H),7.20-7.26(m,2H),7.31(t,1H),7.42-7.51(m,1H),7.96(s,1H),8.64(s,1H),15.41(s,1H)。
3-(3-氯苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(28)
Mp289-291℃;EIMS m/z:622;1H NMR(DMSO-d6)δppm:3.62(t,8H),4.44(t,2H),4.51(t,2H),4.72(s,2H),6.51(s,1H),6.72(dd,2H),7.03(dd,2H),7.11-7.20(m,1H),7.45(dd,1H),7.51-7.60(m,2H),7.82(s,1H),7.92(s,1H),15.32(s,1H)。
3-(3-氯苯基)-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(29)
Mp249-251℃;EIMS m/z:587;1H NMR(DMSO-d6)δppm:1.25-1.37(m,3H),1.57(t,3H),2.96-3.07(m,3H),3.13(d,2H),3.19(t,2H),4.31(t,2H),4.45(t,2H),4.63-4.72(m,2H),4.90(s,2H),7.14-7.25(m,1H),7.41(dd,1H),7.47-7.56(m,2H),7.90(s,1H),8.83(s,1H),15.28(s,1H)。
3-(3-氯苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(30)
Mp237-239℃;EIMS m/z:556;1H NMR(DMSO-d6)δppm 1.30-1.41(m,3H),3.54(t,8H),4.33(t,2H),4.48(t,2H),4.63-4.72(m,2H),4.77(s,2H),7.15-7.27(m,1H),7.43(dd,1H),7.47-7.56(m,2H),7.78(s,1H),8.94(s,1H),15.35(s,1H)。
3-(3-溴苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(31)
Mp275-277℃;EIMS m/z:599;1H NMR(DMSO-d6)δppm:1.24(t,3H),3.54(t,8H),4.46(t,2H),4.53(t,2H),4.73-4.81(m,2H),4.86(s,2H),6.12(s,1H),7.25(dd,1H),7.35-7.45(m,1H),7.55-7.63(m,1H),7.68(dd,1H),8.03(s,1H),9.51(s,1H),15.31(s,1H)。
3-(3-溴苯基)-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(32)
Mp238-240℃;EIMS m/z:611;1H NMR(DMSO-d6)δppm:1.98-2.11(m,4H),3.54(t,8H),4.24-4.30(m,1H),4.41(t,2H),4.48(t,2H),4.59(s,2H),6.19(s,1H),7.23-7.36(m,2H),7.51-7.60(m,1H),7.62-7.71(m,1H),7.94(s,1H),8.64(s,1H),15.23(s,1H)。
3-(3-溴苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(33)
Mp201-203℃;EIMS m/z:665;1H NMR(DMSO-d6)δppm:3.64(t,8H),4.44(t,2H),4.51(t,2H),4.72(s,2H),6.51(s,1H),6.72(dd,2H),7.03(dd,2H),7.05-7.15(m,1H),7.41-7.50(m,2H),7.63(dd,1H),7.82(s,1H),8.23(s,1H),15.25(s,1H)。
3-(3-溴苯基)-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(34)
Mp299-301℃;EIMS m/z:631;1H NMR(DMSO-d6)δppm:1.23-1.33(m,3H),1.59(t,3H),2.96-3.07(m,3H),3.13(d,2H),3.19(t,2H),4.31(t,2H),4.45(t,2H),4.68-4.75(m,2H),4.92(s,2H),7.08-7.15(m,1H),7.40-7.50(m,2H),7.63(dd,1H),7.90(s,1H),8.85(s,1H),15.25(s,1H)。
3-(3-溴苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(35)
Mp244-246℃;EIMS m/z:600;1H NMR(DMSO-d6)δppm1.33-1.43(m,3H),3.57(t,8H),4.33(t,2H),4.48(t,2H),4.63-4.72(m,2H),4.77(s,2H),7.15-7.21(m,1H),7.43-7.55(m,2H),7.66(dd,1H),7.78(s,1H),8.98(s,1H),15.36(s,1H)。
3-(3-甲基苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(36)
Mp215-217℃;EIMS m/z:601;1H NMR(DMSO-d6)δppm:2.35(s,3H),3.54(t,8H),4.60(t,2H),4.73(t,2H),4.86(s,2H),6.61(s,1H),7.15(dd,2H),7.21(dd,2H),7.29(dd,2H),7.35(s,1H),7.40(dd,2H),8.41(s,1H),15.22(s,1H)。
3-(2-苄氧基苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(37)
Mp266-268℃;EIMS m/z:693;1H NMR(DMSO-d6)δppm:3.57(t,8H),4.60(t,2H),4.73(t,2H),4.86(s,2H),5.41(s,2H),6.61(s,1H),6.94(dd,2H),7.15-7.21(m,4H),7.24-7.31(m,3H),7.43-7.50(m,3H),7.53-7.59(m,2H),8.41(s,1H),15.22(s,1H)。
3-(3-羟基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(38)
Mp221-223℃;EIMS m/z:537;1H NMR(DMSO-d6)δppm:1.34(t,3H),3.54(t,8H),4.41(t,2H),4.53(t,2H),4.62-4.71(m,2H),4.87(s,2H),5.67(s,1H),6.51(s,1H),6.88-6.91(m,3H),7.45-7.52(m,1H),8.42(s,1H),8.97(s,1H),15.26(s,1H)。
3-(3-羟基苯基)-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(39)
Mp275-277℃;EIMS m/z:549;1H NMR(DMSO-d6)δppm:1.50-1.55(m,4H),3.55-3.67(m,8H),4.70-4.77(m,1H),4.45(t,2H),4.50(t,2H),4.95(s,2H),5.56(s,1H),6.25(s,1H),6.91(dd,1H)7.08-7.13(m,1H),7.35-7.42(m,2H),7.90(s,1H),8.81(s,1H),15.30(s,1H)。
3-(3-羟基苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(40)
Mp266-268℃;EIMS m/z:603;1H NMR(DMSO-d6)δppm:3.57(t,8H),4.62(t,2H),4.73(t,2H),4.85(s,2H),5.41(s,1H),6.61(s,1H),6.92(dd,2H),7.04-7.13(m,3H),7.17(dd,2H),7.30(s,1H),7.72(dd,1H),8.40(s,1H),15.27(s,1H)。
3-(3-羟基苯基)-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(41)
Mp197-199℃;EIMS m/z:569;1H NMR(DMSO-d6)δppm:1.25-1.34(m,3H),1.58(t,3H),2.94-3.03(m,3H),3.14(t,2H),3.24(t,2H),4.33(t,2H),4.45(t,2H),5.73(s,1H),4.68-4.72(m,2H),4.92(s,2H),6.92-7.02(m,2H),7.27-7.33(m,2H),7.78(s,1H),8.92(s,1H),15.21(s,1H)。
3-(3-羟基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(42)
Mp232-234℃;EIMS m/z:538;1H NMR(DMSO-d6)δppm1.66-1.74(m,3H),3.64(t,8H),4.33(t,2H),4.48(t,2H),4.63-4.72(m,2H),4.75(s,2H),5.67(s,1H),6.78-6.90(m,1H),6.91-7.05(m,2H),7.56-7.63(m,1H),7.64(s,1H),8.93(s,1H),15.26(s,1H)。
3-(4-氟苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(43)
Mp307-309℃;EIMS m/z:539;1H NMR(DMSO-d6)δppm:1.30(t,3H),3.57(t,8H),4.46(t,2H),4.53(t,2H),4.73-4.81(m,2H),4.86(s,2H),6.12(s,1H),7.28(dd,2H),7.45(dd,2H),8.03(s,1H),9.51(s,1H),15.37(s,1H)。
3-(4-氟苯基)-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(44)
Mp256-258℃;EIMS m/z:551;1H NMR(DMSO-d6)δppm:1.95-2.01(m,4H),3.59(t,8H),4.21-4.30(m,1H),4.41(t,2H),4.48(t,2H),4.57(s,2H),6.19(s,1H),7.26(dd,2H),7.49(dd,2H),8.03(s,1H),8.73(s,1H),15.27(s,1H)。
3-(4-氟苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(45)
Mp219-221℃;EIMS m/z:605;1H NMR(DMSO-d6)δppm:3.63(t,8H),4.43(t,2H),4.55(t,2H),4.72(s,2H),6.51(s,1H),6.72(dd,2H),7.03(dd,2H),7.25(dd,2H),7.47(dd,2H),7.80(s,1H),8.19(s,1H),15.31(s,1H)。
3-(4-氟苯基)-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(46)
Mp233-235℃;EIMS m/z:571;1H NMR(DMSO-d6)δppm:1.26-1.35(m,3H),1.55(t,3H),2.95-3.04(m,3H),3.13(d,2H),3.19(t,2H),4.31(t,2H),4.45(t,2H),4.68-4.75(m,2H),4.92(s,2H),7.28(dd,2H),7.50(dd,2H),7.90(s,1H),8.85(s,1H),15.36(s,1H)。
3-(4-氟苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(47)
Mp251-253℃;EIMS m/z:540;1H NMR(DMSO-d6)δppm1.32-1.41(m,3H),3.57(t,8H),4.33(t,2H),4.48(t,2H),4.63-4.72(m,2H),4.75(s,2H),7.28(dd,2H),7.47(dd,2H),7.78(s,1H),8.92(s,1H),15.31(s,1H)。
3-(4-氯苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(48)
Mp264-266℃;EIMS m/z:555;1H NMR(DMSO-d6)δppm:1.33(t,3H),3.57(t,8H),4.46(t,2H),4.53(t,2H),4.73-4.81(m,2H),4.83(s,2H),6.11(s,1H),7.46(dd,2H),7.61(dd,2H),8.03(s,1H),9.51(s,1H),15.41(s,1H)。
3-(4-氯苯基)-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(49)
Mp258-260℃;EIMS m/z:567;1H NMR(DMSO-d6)δppm:1.98-2.05(m,4H),3.53(t,8H),4.21-4.31(m,1H),4.41(t,2H),4.48(t,2H),4.59(s,2H),6.19(s,1H),7.47(dd,2H),7.56(dd,2H),8.03(s,1H),8.73(s,1H),15.23(s,1H)。
3-(4-氯苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(50)
Mp261-263℃;EIMS m/z:621;1H NMR(DMSO-d6)δppm:3.60(t,8H),4.44(t,2H),4.55(t,2H),4.72(s,2H),6.51(s,1H),6.72(dd,2H),7.03(dd,2H),7.41(dd,2H),7.53(dd,2H),7.81(s,1H),8.26(s,1H),15.34(s,1H)。
3-(4-氯苯基)-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(51)
Mp241-243℃;EIMS m/z:587;1H NMR(DMSO-d6)δppm:1.23-1.35(m,3H),1.58(t,3H),2.95-3.04(m,3H),3.13(d,2H),3.19(t,2H),4.31(t,2H),4.45(t,2H),4.68-4.75(m,2H),4.92(s,2H),7.44(dd,2H),7.58(dd,2H),7.82(s,1H),8.85(s,1H),15.35(s,1H)。
3-(4-氯苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(52)
Mp158-160℃;EIMS m/z:556;1H NMR(DMSO-d6)δppm1.33-1.43(m,3H),3.57(t,8H),4.33(t,2H),4.48(t,2H),4.63-4.72(m,2H),4.78(s,2H),7.45(dd,2H),7.55(dd,2H),7.78(s,1H),8.93(s,1H),15.29(s,1H)。
3-(4-溴苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(53)
Mp241-243℃;EIMS m/z:599;1H NMR(DMSO-d6)δppm:1.35(t,3H),3.57(t,8H),4.45(t,2H),4.53(t,2H),4.73-4.81(m,2H),4.83(s,2H),6.13(s,1H),7.38(dd,2H),7.72(dd,2H),8.03(s,1H),9.51(s,1H),15.34(s,1H)。
3-(4-溴苯基)-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(54)
Mp180-182℃;EIMS m/z:611;1H NMR(DMSO-d6)δppm:1.98-2.11(m,4H),3.66(t,8H),4.22-4.31(m,1H),4.41(t,2H),4.48(t,2H),4.57(s,2H),6.19(s,1H),7.37(dd,2H),7.71(dd,2H),8.03(s,1H),8.73(s,1H),15.27(s,1H)。
3-(4-溴苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(55)
Mp197-199℃;EIMS m/z:665;1H NMR(DMSO-d6)δppm:3.57(t,8H),4.47(t,2H),4.59(t,2H),4.75(s,2H),6.51(s,1H),6.72(dd,2H),7.03(dd,2H),7.37(dd,2H),7.61(dd,2H),7.81(s,1H),8.21(s,1H),15.32(s,1H)。
3-(4-溴苯基)-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(56)
Mp230-232℃;EIMS m/z:631;1H NMR(DMSO-d6)δppm:1.22-1.32(m,3H),1.56(t,3H),2.95-3.04(m,3H),3.13(d,2H),3.19(t,2H),4.31(t,2H),4.45(t,2H),4.68-4.75(m,2H),4.92(s,2H),7.35(dd,2H),7.64(dd,2H),7.84(s,1H),8.98(s,1H),15.32(s,1H)。
3-(4-溴苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(57)
Mp288-290℃;EIMS m/z:600;1H NMR(DMSO-d6)δppm1.35-1.44(m,3H),3.54(t,8H),4.33(t,2H),4.48(t,2H),4.63-4.72(m,2H),4.78(s,2H),7.35(dd,2H),7.70(s,1H),7.85(dd,2H),8.93(s,1H),15.26(s,1H)。
3-(4-氨基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(58)
Mp196-198℃;EIMS m/z:536;1H NMR(DMSO-d6)δppm:1.32(t,3H),3.57(t,8H),4.45(t,2H),4.53(t,2H),4.73-4.81(m,2H),4.83(s,2H),6.13(s,1H),6.72(s,2H),7.05(dd,2H),7.39(dd,2H),8.04(s,1H),9.53(s,1H),15.36(s,1H)。
3-(4-氨基苯基)-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(59)
Mp269-271℃;EIMS m/z:548;1H NMR(DMSO-d6)δppm:1.95-2.08(m,4H),3.66(t,8H),4.22-4.31(m,1H),4.41(t,2H),4.48(t,2H),4.57(s,2H),6.19(s,1H),6.68(s,2H),6.77(dd,2H),7.26(dd,2H),8.04(s,1H),8.74(s,1H),15.29(s,1H)。
3-(4-氨基苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(60)
Mp292-294℃;EIMS m/z:602;1H NMR(DMSO-d6)δppm:3.54(t,8H),4.42(t,2H),4.59(t,2H),4.75(s,2H),6.51(s,1H),6.60(s,2H),6.70(dd,2H),6.91(dd,2H),7.03(dd,2H),7.22(dd,2H),7.81(s,1H),8.20(s,1H),15.31(s,1H)。
3-(4-氨基苯基)-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(61)
Mp260-262℃;EIMS m/z:568;1H NMR(DMSO-d6)δppm:1.21-1.32(m,3H),1.53(t,3H),2.97-3.04(m,3H),3.11(d,2H),3.19(t,2H),4.31(t,2H),4.45(t,2H),4.68-4.75(m,2H),4.92(s,2H),6.70(s,2H),6.98(dd,2H),7.15(dd,2H),7.82(s,1H),8.98(s,1H),15.26(s,1H)。
3-(4-氨基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(62)
Mp287-289℃;EIMS m/z:537;1H NMR(DMSO-d6)δppm1.45-1.54(m,3H),3.54(t,8H),4.33(t,2H),4.48(t,2H),4.63-4.72(m,2H),4.78(s,2H),6.68(s,2H),6.75(dd,2H),7.21(dd,2H),7.70(s,1H),8.93(s,1H),15.29(s,1H)。
3-(4-硝基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(63)
Mp265-267℃;EIMS m/z:566;1H NMR(DMSO-d6)δppm:1H NMR(DMSO-d6)δppm:1.30(t,3H),3.56(t,8H),4.46(t,2H),4.54(t,2H),4.73-4.81(m,2H),4.83(s,2H),6.13(s,1H),7.57(dd,2H),8.04(s,1H),8.29(dd,2H),9.54(s,1H),15.23(s,1H)。
3-(4-硝基苯基)-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(64)
Mp237-239℃;EIMS m/z:578;1H NMR(DMSO-d6)δppm:1.93-2.08(m,4H),3.56(t,8H),4.22-4.31(m,1H),4.41(t,2H),4.48(t,2H),4.55(s,2H),6.19(s,1H),7.57(dd,2H),8.10(s,1H),8.26(dd,2H),8.75(s,1H),15.32(s,1H)。
3-(4-硝基苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(65)
Mp275-277℃;EIMS m/z:632;1H NMR(DMSO-d6)δppm:3.56(t,8H),4.42(t,2H),4.59(t,2H),4.75(s,2H),6.51(s,1H),6.91(dd,2H),7.03(dd,2H),7.58(dd,2H),7.81(s,1H),8.20(s,1H),8.29(dd,2H),15.32(s,1H)。
3-(4-硝基苯基)-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(66)
Mp266-268℃;EIMS m/z:598;1H NMR(DMSO-d6)δppm:1.26-1.34(m,3H),1.58(t,3H),2.97-3.04(m,3H),3.15(d,2H),3.22(t,2H),4.31(t,2H),4.45(t,2H),4.68-4.72(m,2H),4.92(s,2H),7.52(dd,2H),7.79(s,1H),8.12(dd,2H),8.98(s,1H),15.26(s,1H)。
3-(4-硝基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(67)
Mp296-298℃;EIMS m/z:567;1H NMR(DMSO-d6)δppm1.62-1.69(m,3H),3.15(t,2H),3.59(t,8H),4.31(t,2H),4.63-4.72(m,2H),4.78(s,2H),7.64(s,1H),7.51(t,2H),8.42(t,2H),8.93(s,1H),15.28(s,1H)。
3-(4-甲基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(68)
Mp208-210℃;EIMS m/z:535;1H NMR(DMSO-d6)δppm:1.36(t,3H),2.76(s,3H),3.54(t,8H),4.41(t,2H),4.53(t,2H),4.62-4.71(m,2H),4.87(s,2H),6.51(s,1H),7.28(dd,2H),7.65(dd,2H),8.42(s,1H),8.97(s,1H),15.26(s,1H)。
3-(4-甲基苯基)-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(69)
Mp246-248℃;EIMS m/z:547;1H NMR(DMSO-d6)δppm:1.42-1.55(m,4H),2.51(s,3H),3.54(t,8H),4.30-4.37(m,1H),4.58(t,2H),4.64(t,2H),4.87(s,2H),7.28(dd,2H),7.42(dd,2H),6.51(s,1H),8.42(s,1H),8.95(s,1H),15.27(s,1H)。
3-(4-甲基苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(70)
Mp228-230℃;EIMS m/z:601;1H NMR(DMSO-d6)δppm:2.53(s,3H),3.55(t,8H),4.64(t,2H),4.71(t,2H),4.89(s,2H),6.61(s,1H),6.92(dd,2H),7.14(dd,2H),7.23(dd,2H),7.30(s,1H)7.48(dd,2H),8.40(s,1H),15.27(s,1H)。
3-(4-甲基苯基)-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(71)
Mp252-254℃;EIMS m/z:567;1H NMR(DMSO-d6)δppm:1.37(d,3H),1.58(t,3H),2.23(s,3H),2.95-3.03(m,3H),3.15(t,2H),3.24(t,2H),4.33(t,2H),4.45(t,2H),4.68-4.72(m,2H),4.92(s,2H),7.36(dd,2H),7.52(dd,2H),7.80(s,1H),8.98(s,1H),15.26(s,1H)。
3-(4-甲基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(72)
Mp285-287℃;EIMS m/z:536;1H NMR(DMSO-d6)δppm1.64-1.70(m,3H),2.73(s,3H),3.60(t,8H),4.31(t,2H),4.55(t,2H),4.63-4.72(m,2H),4.75(s,2H),7.34(dd,2H),7.52(dd,2H),7.64(s,1H),8.93(s,1H),15.28(s,1H)。
3-(4-羟基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(73)
Mp254-256℃;EIMS m/z:537;1H NMR(DMSO-d6)δppm:1.34(t,3H),3.54(t,8H),4.41(t,2H),4.53(t,2H),4.62-4.71(m,2H),4.87(s,2H),5.71(s,1H),6.51(s,1H),6.72(dd,2H),7.56(dd,2H),8.42(s,1H),8.97(s,1H),15.23(s,1H)。
3-(4-羟基苯基)-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(74)
Mp274-276℃;EIMS m/z:549;1H NMR(DMSO-d6)δppm:1.54-1.65(m,4H),3.55-3.67(m,8H),4.70-4.77(m,1H),4.45(t,2H),4.50(t,2H),4.95(s,2H),5.78(s,1H),6.25(s,1H),6.75(dd,2H)7.63(dd,2H),7.90(s,1H),8.81(s,1H),15.24(s,1H)。
3-(4-羟基苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(75)
Mp252-254℃;EIMS m/z:603;1H NMR(DMSO-d6)δppm:3.55(t,8H),4.62(t,2H),4.73(t,2H),4.86(s,2H),5.68(s,1H),6.61(s,1H),6.89(dd,2H),6.94(dd,2H),7.15(dd,2H),7.30(s,1H),7.59(dd,2H),8.41(s,1H),15.22(s,1H)。
3-(4-羟基苯基)-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(76)
Mp226-228℃;EIMS m/z:569;1H NMR(DMSO-d6)δppm:1.36(d,3H),1.54(t,3H),2.94-3.04(m,3H),3.14(t,2H),3.25(t,2H),4.33(t,2H),4.47(t,2H),4.68-4.72(m,2H),4.96(s,2H),5.71(s,1H),6.99(dd,2H),7.55(dd,2H),7.70(s,1H),8.92(s,1H),15.23(s,1H)。
3-(4-羟基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(77)
Mp281-283℃;EIMS m/z:538;1H NMR(DMSO-d6)δppm1.65-1.74(m,3H),3.64(t,8H),4.33(t,2H),4.48(t,2H),4.63-4.72(m,2H),4.78(s,2H),5.58(s,1H),6.88(dd,2H),7.58(dd,2H),7.64(s,1H),8.93(s,1H),15.21(s,1H)。
3-(4-甲氧基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(78)
Mp279-281℃;EIMS m/z:551;1H NMR(DMSO-d6)δppm:1.32(t,3H),3.53(t,8H),4.08(s,3H),4.41(t,2H),4.53(t,2H),4.62-4.71(m,2H),4.87(s,2H),6.51(s,1H),7.05(dd,2H),7.67(dd,2H),8.42(s,1H),8.93(s,1H),15.21(s,1H)。
3-(4-甲氧基苯基)-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(79)
Mp190-193℃;EIMS m/z:563;1H NMR(DMSO-d6)δppm:1.52-1.65(m,4H),3.55-3.67(m,8H),4.07(s,3H),4.70-4.77(m,1H),4.45(t,2H),4.50(t,2H),4.95(s,2H),6.25(s,1H),7.05(dd,2H)7.73(dd,2H),7.90(s,1H),8.81(s,1H),15.24(s,1H)。
3-(4-甲氧基苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(80)
Mp200-202℃;EIMS m/z:617;1H NMR(DMSO-d6)δppm:3.57(t,8H),4.09(s,3H),4.60(t,2H),4.73(t,2H),4.86(s,2H),6.61(s,1H),7.17(dd,4H),7.21(dd,2H),7.61(s,1H),7.63(dd,2H),8.41(s,1H),15.22(s,1H)。
3-(4-甲氧基苯基)-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(81)
Mp251-253℃;EIMS m/z:583;1H NMR(DMSO-d6)δppm:1.36(d,3H),1.54(t,3H),2.94-3.06(m,3H),3.14(t,2H),3.25(t,2H),4.03(s,3H),4.33(t,2H),4.47(t,2H),4.68-4.72(m,2H),4.96(s,2H),7.03(dd,2H),7.74(dd,2H),7.81(s,1H),8.92(s,1H),15.21(s,1H)。
3-(4-甲氧基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(82)
Mp266-268℃;EIMS m/z:552;1H NMR(DMSO-d6)δppm1.64-1.74(m,3H),3.53(t,8H),4.08(s,3H),4.33(t,2H),4.48(t,2H),4.63-4.72(m,2H),4.78(s,2H),7.06(dd,2H),7.62(dd,2H),7.70(s,1H),8.93(s,1H),15.23(s,1H)。
3-(3,4-二甲氧基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)-2(5H)-呋喃酮(83)
Mp213-215℃;EIMS m/z:581;1H NMR(DMSO-d6)δppm:1.36(t,3H),3.54(t,8H),4.07(s,6H),4.41(t,2H),4.53(t,2H),4.62-4.71(m,2H),4.87(s,2H),6.51(s,1H),7.03(d,2H),7.15(dd,1H),8.42(s,1H),8.97(s,1H),15.26(s,1H)。
3-(3,4-二甲氧基苯基)-4-(2-(4-(1-环丙基-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(84)
Mp240-242℃;EIMS m/z:593;1H NMR(DMSO-d6)δppm:1.42-1.50(m,4H),3.54(t,8H),3.92(s,6H),4.30-4.35(m,1H),4.58(t,2H),4.64(t,2H),4.87(s,2H),6.51(s,1H),7.02(d,1H),7.23(d,1H),7.35(dd,1H),8.42(s,1H),8.95(s,1H),15.27(s,1H)。
3-(3,4-二甲氧基苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(85)
Mp171-173℃;EIMS m/z:647;1H NMR(DMSO-d6)δppm:3.55(t,8H),4.03(s,6H),4.62(t,2H),4.73(t,2H),4.87(s,2H),6.61(s,1H),6.72(d,2H),6.92(dd,2H),7.05(dd,1H),7.14(dd,2H),7.30(s,1H)8.40(s,1H),15.27(s,1H)。
3-(3,4-二甲氧基苯基)-4-(2-(2-甲基-4-(1-乙基-3-羧基-6,8-二氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(86)
Mp257-259℃;EIMS m/z:613;1H NMR(DMSO-d6)δppm:1.38(d,3H),1.53(t,3H),2.94-3.03(m,3H),3.15(t,2H),3.24(t,2H),4.21(s,6H),4.33(t,2H),4.45(t,2H),4.68-4.72(m,2H),4.92(s,2H),7.05(d,2H),7.25(dd,1H),7.81(s,1H),8.98(s,1H),15.26(s,1H)。
3-(3,4-二甲氧基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(87)
Mp278-280℃;EIMS m/z:582;1H NMR(DMSO-d6)δppm:1.64-1.73(m,3H),3.55(t,8H),4.08(s,6H),4.31(t,2H),4.46(t,2H),4.63-4.72(m,2H),4.75(s,2H),7.13(dd,1H),7.02(d,2H),7.64(s,1H),8.93(s,1H),15.26(s,1H)。
3-(3,4-二乙氧基苯基)-4-(2-(4-(1-(4-氟苯基)-3-羧基-6-氟-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(88)
Mp205-207℃;EIMS m/z:587;1H NMR(DMSO-d6)δppm:1.36(t,6H),3.57(t,8H),4.25-4.31(m,4H),4.60(t,2H),4.73(t,2H),4.86(s,2H),6.61(s,1H),6.83(d,1H),6.94-7.03(m,3H),7.15(dd,2H),7.21(dd,1H),7.30(s,1H),8.41(s,1H),15.22(s,1H)。
3-(3,4-二乙氧基苯基)-4-(2-(4-(1-乙基-3-羧基-6-氟-8-氮杂-4-喹啉酮-7-基)哌嗪-1-基)乙氧基)-2(5H)-呋喃酮(89)
Mp272-274℃;EIMS m/z:610;1H NMR(DMSO-d6)δppm:1.39(t,6H),1.63-1.71(m,3H),3.57(t,8H),4.25-4.32(m,4H),4.58-4.61(m,2H),4.65(t,2H),4.73(t,2H),4.86(s,2H),6.83(d,1H),6.94-7.03(m,2H),7.65(s,1H),8.68(s,1H),15.23(s,1H)。