CN115521272A - 一种苯磺酰哌嗪类化合物及其医药用途 - Google Patents

一种苯磺酰哌嗪类化合物及其医药用途 Download PDF

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CN115521272A
CN115521272A CN202211351050.5A CN202211351050A CN115521272A CN 115521272 A CN115521272 A CN 115521272A CN 202211351050 A CN202211351050 A CN 202211351050A CN 115521272 A CN115521272 A CN 115521272A
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piperazinyl
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dichlorobenzenesulfonyl
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CN115521272B (zh
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刘洪涛
田长林
李文燕
许艳妮
司书毅
田文华
王伟志
姜新海
李霓
巫晔翔
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Hebei General Hospital
Institute of Medicinal Biotechnology of CAMS
Hebei Normal University
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    • C07DHETEROCYCLIC COMPOUNDS
    • C07D277/00Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
    • C07D277/02Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings
    • C07D277/20Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D277/32Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
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    • C07D295/00Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/22Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with hetero atoms directly attached to ring nitrogen atoms
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    • C07D307/56Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
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Abstract

本发明公开了一种苯磺酰哌嗪类化合物及其医药用途。本发明提供了一系列苯磺酰哌嗪类化合物,研究发现该系列苯磺酰哌嗪类化合物可以有效提高ABCA1的表达水平,因而具有开发成提高ABCA1表达水平的药物的前景,具有开发成治疗通过提高ABCA1表达水平进而得到缓解的疾病的药物的前景,如开发成降胆固醇、防治动脉粥样硬化的药物。

Description

一种苯磺酰哌嗪类化合物及其医药用途
技术领域
本发明属于药物化学领域,具体涉及一种苯磺酰哌嗪类化合物及其医药用途。
背景技术
心血管疾病(Cardivascular disease,CVD)是指所有与心脏和循环系统相关的疾病,是世界范围内最主要的死亡原因。
动脉粥样硬化(Atherosclerosis,AS)是脂质沉积于动脉血管内膜引发的血管炎症,是CVD 的主要病理基础。细胞内胆固醇酯(cholesterol ester,CE)的驻留与泡沫细胞的形成是AS斑块发生和发展的重要原因,而胆固醇主动排出障碍是泡沫细胞形成的重要机制。作为胆固醇的主动转运蛋白,三磷酸腺苷结合盒转运体A1(ATP-binding cassettetransporterA1,ABCA1) 可将胞内胆固醇排出至载脂蛋白AⅠ(apolipoprotein AⅠ,ApoAⅠ)、高密度脂蛋白(high density liprotein,HDL),是胆固醇逆向转运(reversecholesteroltransport,RCT)中的关键分子。HDL 发挥抗AS作用的主要机制是参与Reversecholesterol transport,RCT过程。ABCA1介导细胞内胆固醇的流出,是RCT的初始步骤及限速步骤,在HDL代谢以及RCT中起重要作用。
研究认为ABCA1不仅能逆向转运细胞内的胆固醇,减少泡沫细胞的形成,而且在AS的慢性炎症反应过程中扮演着重要作用。ABCA1贯穿AS形成的整个过程,靶向ABCA1既可减少脂质沉积又可减弱炎症反应,可作为治疗和预防AS的关键靶点。通过提高ABCA1的表达来降低血浆胆固醇水平成为预防和治疗AS新的方向。因此,寻找ABCA1基因表达上调剂成为发现调节RCT的活性化合物进而开发降低胆固醇水平和防治AS药物的重要途径。
基于ABCA1基因表达上调剂的发现,特提出本发明创造。
发明内容
本发明第一目的在于提供一种苯磺酰哌嗪类化合物,第二目的在于提供该苯磺酰哌嗪类化合物的医药用途。
本发明上述目的通过如下技术方案实现:
一种苯磺酰哌嗪类化合物,其化学结构式为如下结构式中的一种:
Figure BDA0003918891630000011
Figure BDA0003918891630000021
Figure BDA0003918891630000031
Figure BDA0003918891630000041
上述苯磺酰哌嗪类化合物用于制备提高ABCA1表达水平的药物的用途。
上述苯磺酰哌嗪类化合物用于制备治疗通过提高ABCA1表达水平进而得到缓解的疾病的药物的用途。
上述苯磺酰哌嗪类化合物用于制备降低胆固醇水平、防治动脉粥样硬化的药物的用途。
有益效果:
本发明提供了一系列苯磺酰哌嗪类化合物,均为未曾报道的新化合物。研究发现,该系列苯磺酰哌嗪类化合物可以有效提高ABCA1的表达水平,因而具有开发成提高ABCA1表达水平的药物的前景,具有开发成治疗通过提高ABCA1表达水平进而得到缓解的疾病的药物的前景,如开发成降胆固醇、防治动脉粥样硬化的药物。
具体实施方式
下面结合实施例具体介绍本发明实质性内容,但并不以此限定本发明的保护范围。
实施例1 2-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]噻唑-5-甲酸甲酯的制备
1.4-(2,6-二氯苯磺酰基)哌嗪甲酸叔丁酯
将1-Boc哌嗪(1.14g,6.11mmoL)溶入20mL THF,将吡啶(9.28mL,117.32mmoL) 和2,6-二氯苯磺酰氯(3.29mL,40.73mmoL)分三次加入反应液中,室温条件下发生反应,由TLC监测反应的进程。反应完全后,减压蒸馏除去THF,向反应液中加入20mL蒸馏水,用EA萃取三次(20mL×3),合并有机相依次用蒸馏水、饱和食盐水洗涤,无水MgSO4干燥。抽滤,滤液减压浓缩,得粗产品黄色油状化合物1.34g,产率为83.0%。得到的粗品未经纯化直接投下步反应。
2.1-(2,6-二氯苯磺酰基)哌嗪
将4-(2,6-二氯苯磺酰基)哌嗪甲酸叔丁酯(1.00g,2.53mmoL)溶于10mL CH2Cl2中,向反应瓶中加入TFA(10mL),室温搅拌,TLC监测反应进程。反应结束后,冰浴条件下,用饱和Na2CO3水溶液调节pH至成中性。用CH2Cl2萃取三次(20mL×3),合并有机相依次用蒸馏水、饱和食盐水洗涤,无水MgSO4干燥。抽滤,滤液减压浓缩,得粗产品黄棕色油状化合物0.70g,产率为94.0%。得到的粗品未经纯化直接投下步反应。
3.2-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]噻唑-5-甲酸甲酯
2-溴噻唑-5-甲酸甲酯(0.50g,2.26mmoL)溶于5mL DMF中,加入Cs2CO3(1.47g,4.52mmol),再将1-(2,6-二氯苯磺酰基)哌嗪(0.83g,3.39mmol)加入至反应液中,将温度升至120℃,TLC监测反应的进程。反应完全后,向反应液中加入20mL蒸馏水,用EA萃取三次(20mL×3),合并有机相依次用蒸馏水、饱和食盐水洗涤,无水MgSO4干燥。抽滤,滤液减压浓缩,柱层析分离得到白色粉末固体2-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]噻唑-5-甲酸甲酯,0.85g,产率为86.6%。熔点为158-160℃。1H NMR(400MHz,CDCl3)δ7.85(s,1H),7.49 (s,1H),7.47(s,1H),7.37-7.33(m,1H),3.83(s,3H),3.57-3.54(m,4H),3.59-3.50(m,4H).13CNMR(101MHz,CDCl3)δ174.16,162.26,147.92,147.87,135.69,134.43,131.69,117.41,48.16, 44.83.HRMS:C15H15Cl2N3O4S2 H for[M+H]+,calculated435.9881 found 435.9936.
实施例2 2-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]噻唑-5-甲酸的制备
将100mg 2-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]噻唑-5-甲酸甲酯溶于2mLTHF中,向反应瓶中加入2mL 10%NaOH水溶液,搅拌5min后,再向反应瓶中加入2mL的EtOH,温度升至60℃,TLC监测实验的进程,大约40min后反应结束,减压蒸馏除去混合溶剂,在冰浴条件下,用1N HCl的水溶液调节剩余反应液的pH至酸性,有大量白色固体析出,减压抽滤,蒸馏水洗涤滤饼,滤饼经真空干燥后得到白色粉末固体2-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]噻唑-5-甲酸,产率为89.4%。熔点为158-160℃。1H NMR(400MHz,DMSO)δ7.83(s,1H),7.75(d,J=7.7Hz,2H),7.65(dd,J=8.8,7.2Hz,1H),3.67-3.65(m,4H),3.52-3.50(m,4H).13CNMR (101MHz,DMSO)δ174.01,163.03,134.98,134.06,132.79,132.65,118.26,48.07,44.87.HRMS: C14H13Cl2N3O4S2 H for[M+H]+,calculated 421.9725found 421.9917.
实施例3 2-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]噻唑-5-甲酸甲酯的制备
根据实施例1步骤的方法制备,第一步磺酰化反应用2,6-二氟苯磺酰氯为原料,得到副标题化合物2-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]噻唑-5-甲酸甲酯,为到白色粉末固体,产率为 83.7%。熔点为198-200℃。1H NMR(400MHz,CDCl3)δ7.84(s,1H),7.58-7.51(m,1H),7.05(t, J=8.7Hz,2H),3.82(s,3H),3.72-3.70(m,4H),3.42-3.40(m,4H).13C NMR(101MHz,CDCl3) δ173.97,162.21,161.00,158.42,147.79,117.50,47.87,44.76.HRMS:C15H15F2N3O4S2 H for [M+H]+,calculated 404.0472found 404.0679.
实施例4 2-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]噻唑-5-甲酸的制备
根据实施例2步骤的方法制备,以2-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]噻唑-5-甲酸甲酯为原料,得到副标题化合物2-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]噻唑-5-甲酸,为白色粉末固体,产率为87.7%。熔点为194-196℃。1H NMR(400MHz,DMSO)δ7.85(m,1H),7.82(s,1H),7.41 (t,J=9.2Hz,2H),3.72-3.69(m,4H),3.35-3.33(m,4H).13C NMR(101MHz,DMSO)δ173.90, 163.01,160.70,158.14,147.74,147.59,136.97,118.28,47.69,44.87.HRMS:C14H13F2N3O4S2 H for[M+H]+,calculated 390.0316found 390.0408.
实施例5 2-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]噻唑-4-甲酸乙酯的制备
根据实施例1步骤的方法制备,第三步取代反应用2-溴噻唑-4-甲酸乙酯为原料,得到副标题化合物2-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]噻唑-4-甲酸乙酯,为白色粉末固体,产率为 84.3%。熔点为138-140℃。1H NMR(400MHz,CDCl3)δ7.48(d,J=2.9Hz,2H),7.46(s,1H), 7.36-7.32(m,1H),4.34(q,J=7.1Hz,2H),3.65-3.63(m,4H),3.55-3.53(m,4H),1.36(t,J=7.1 Hz,3H).13C NMR(101MHz,CDCl3)δ170.32,161.50,143.96,135.69,134.55,61.25,48.45, 44.93,14.29.HRMS:C16H17Cl2N3O4S2 H for[M+H]+,calculated450.0038found 450.0263.
实施例6 2-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]噻唑-4-甲酸的制备
根据实施例2步骤的方法制备,以2-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]噻唑-4-甲酸乙酯为原料,得到副标题化合物2-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]噻唑-4-甲酸,为白色粉末固体,产率为88.6%。熔点为194-196℃。1H NMR(400MHz,DMSO)δ7.76(s,1H),7.74(s,2H),7.66 (dd,J=8.8,7.2Hz,1H),3.58-3.60(m,4H),3.51-3.50(m,4H).13C NMR(101MHz,DMSO)δ 170.26,162.59,144.14,134.98,134.08,132.66,48.27,44.95.HRMS:C14H13Cl2N3O4S2 H for [M+H]+,calculated 421.9725found 421.9915.
实施例7 2-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]噻唑-4-甲酸乙酯的制备
根据实施例1步骤的方法制备,第一步磺酰化反应用2,6-二氟苯磺酰氯为原料,第三步取代反应用2-溴噻唑-4-甲酸甲酯为原料,得到副标题化合物2-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]噻唑-4-甲酸乙酯,为白色粉末固体,产率为82.6%。熔点为178-180℃。1HNMR(400MHz, CDCl3)δ7.62-7.53(m,1H),7.47(s,1H),7.05(t,J=8.7Hz,2H),4.34(q,J=7.1Hz,2H), 3.67-3.66(m,4H),3.42-3.39(m,4H),1.36(t,J=7.1Hz,3H).13C NMR(101MHz,CDCl3)δ170.15,161.48,161.00,158.42,143.94,117.32,115.03,77.36,77.04,76.73,61.26,48.12,44.85, 14.37,14.25.HRMS:C16H17F2N3O4S2 H for[M+H]+,calculated418.0629found 418.0825.
实施例8 2-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]噻唑-4-甲酸的制备
根据实施例2步骤的方法制备,以2-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]噻唑-4-甲酸乙酯为原料,得到副标题化合物2-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]噻唑-4-甲酸,为白色粉末固体,产率为85.4%。熔点为235-238℃。1HNMR(400MHz,DMSO)δ7.89-7.81(m,1H),7.73(s,1H), 7.42(t,J=9.2Hz,2H),3.63-3.61(m,4H),3.35-3.34(m,4H).13C NMR(101MHz,DMSO)δ 170.19,170.19,170.18,170.11,162.63,162.62,162.55,160.88,160.72,160.63,158.17,158.07, 144.22,144.21,144.21,144.14,114.03,113.95,47.90,44.98.HRMS:C14H13F2N3O4S2 H for [M+H]+,calculated 390.0316found 390.0406.
实施例9 5-[4-(2,6-二氯苯磺酰基)-1-哌嗪甲基]-2-呋喃甲酸甲酯的制备
根据实施例1步骤的方法制备,第三步取代反应用5-(氯甲基)呋喃-2-甲酸甲酯为原料,得到副标题化合物5-[4-(2,6-二氯苯磺酰基)-1-哌嗪甲基]-2-呋喃甲酸甲酯,为白色粉末固体,产率为70.2%。熔点为104-106℃。1H NMR(400MHz,CDCl3)δ7.46(s,1H),7.44(s,1H),7.31 (m,1H),7.11(d,J=3.4Hz,1H),6.33(d,J=2.8Hz,1H),3.87(s,3H),3.62(s,2H),3.43(s,4H), 2.56(s,4H).13C NMR(101MHz,CDCl3)δ159.04,155.63,144.20,135.70,134.70,132.53,131.72, 118.80,111.14,54.55,52.34,51.92,45.60.ESI-MS,m/z:433.0[M+H]+,455.2[M+Na]+.
实施例10 5-[4-(2,6-二氯苯磺酰基)-1-哌嗪甲基]-2-呋喃甲酸的制备
根据实施例2步骤的方法制备,以5-[4-(2,6-二氯苯磺酰基)-1-哌嗪甲基]-2-呋喃甲酸甲酯为原料,得到副标题化合物5-[4-(2,6-二氯苯磺酰基)-1-哌嗪甲基]-2-呋喃甲酸,为白色粉末固体,产率为82.3%。熔点为242-243℃。1H NMR(400MHz,DMSO)δ7.73(d,J=1.0Hz,1H), 7.71(s,1H),7.63(dd,J=8.9,7.1Hz,1H),7.19(d,J=3.4Hz,1H),6.53(d,J=3.4Hz,1H),3.65 (s,2H),3.37-3.35(m,4H),2.53-2.51(m,4H).13C NMR(101MHz,DMSO)δ159.71,156.07, 144.86,134.93,134.44,134.34,132.62,118.88,111.74,53.98,52.08,45.71.HRMS: C16H16Cl2N2O5S H for[M+H]+,calculated 419.0157found 419.0249.
实施例11 5-[4-(2,6-二氟苯磺酰基)-1-哌嗪甲基]-2-呋喃甲酸甲酯的制备
根据实施例1步骤的方法制备,第一步磺酰化反应用2,6-二氟苯磺酰氯为原料,第三步取代反应用5-(氯甲基)呋喃-2-甲酸甲酯为原料,得到副标题化合物5-[4-(2,6-二氟苯磺酰基)-1- 哌嗪甲基]-2-呋喃甲酸甲酯,为白色粉末固体,产率为68.2%。熔点为108-110℃。1H NMR(400 MHz,CDCl3)δ7.53(m,1H),7.45(s,1H),7.42(s,1H),7.21-7.16(m,2H),3.86(s,3H),3.61(s, 2H),3.41(s,4H),2.54(s,4H).13C NMR(101MHz,CDCl3)δ158.04,153.63,142.10,134.30, 133.10,131.55,130.71,117.60,110.13,55.53,53.36,50.82,44.30.ESI-MS,m/z:401.1[M+H]+.
实施例12 5-[4-(2,6-二氟苯磺酰基)-1-哌嗪甲基]-2-呋喃甲酸的制备
根据实施例2步骤的方法制备,以5-[4-(2,6-二氟苯磺酰基)-1-哌嗪甲基]-2-呋喃甲酸甲酯为原料,得到副标题化合物5-[4-(2,6-二氟苯磺酰基)-1-哌嗪甲基]-2-呋喃甲酸,为白色粉末固体,产率为72.3%。熔点为 236-238℃。1H NMR(400MHz,DMSO)δ7.82(s,1H),7.78(s,1H),7.68(m,1H),7.35-7.30(m,1H),3.67(s, 2H),3.39-3.36(m,4H),2.61-2.57(m,4H).13C NMR(101MHz,DMSO)δ163.71,159.07,148.81,136.63, 135.66,135.35,133.61,119.78,113.76,54.99,53.18,46.91.ESI-MS,m/z:385.3[M-H]-.
实施例13 4-[4-(2,6-二氯苯磺酰基)-1-哌嗪甲基]苯甲酸甲酯的制备
根据实施例1步骤的方法制备,第三步取代反应用4-氯甲基苯甲酸甲酯为原料,得到副标题化合物4-[4-(2,6-二氯苯磺酰基)-1-哌嗪甲基]苯甲酸甲酯,为白色粉末固体,产率为75.6%。熔点为226-228℃。1H NMR(400MHz,CDCl3)δ8.07(d,J=4.4Hz,2H),7.79(s,2H),7.45(d,J =7.7Hz,2H),7.34(t,J=7.4Hz,1H),4.31(s,2H),4.10-3.91(m,8H),3.14(s,3H).13C NMR(101 MHz,CDCl3)δ166.14,135.49,134.24,133.30,132.02,131.94,131.72,130.51,60.63,52.49, 51.71,42.86.ESI-MS,m/z:443.1[M+H]+,465.0[M+Na]+.
实施例14 4-[4-(2,6-二氯苯磺酰基)-1-哌嗪甲基]苯甲酸的制备
根据实施例2步骤的方法制备,以4-[4-(2,6-二氯苯磺酰基)-1-哌嗪甲基]苯甲酸甲酯为原料,得到副标题化合物4-[4-(2,6-二氯苯磺酰基)-1-哌嗪甲基]苯甲酸,为白色粉末固体,产率为88.6%。熔点为246-248℃。1H NMR(400MHz,DMSO)δ12.17(s,1H),8.02(d,J=7.6Hz, 3H),7.76(d,J=8.0Hz,3H),7.69-7.65(m,1H),4.46(s,2H),3.92(s,4H),3.14(s,4H).13C NMR (101MHz,DMSO)δ167.36,135.00,134.84,133.82,132.70,131.95,129.99,51.04,42.88.HRMS: C18H18Cl2N2O4S H for[M+H]+,calculated 429.0364found 429.0453.
实施例15 4-[4-(2,6-二氟苯磺酰基)-1-哌嗪甲酰基]苯甲酸甲酯的制备
根据实施例1步骤的方法制备,第一步磺酰化反应用2,6-二氟苯磺酰氯为原料,第三步取代反应用4-(氯羰基)苯甲酸甲酯为原料,得到副标题化合物4-[4-(2,6-二氟苯磺酰基)-1-哌嗪甲酰基]苯甲酸甲酯,为白色粉末固体,产率为65.6%。熔点为221-223℃。1HNMR(400MHz, CDCl3)δ8.13(d,J=4.4Hz,2H),7.92(d,J=4.4Hz,2H),7.68-7.63(m,1H),7.22-7.18(m,2H), 4.14-3.95(m,8H),3.17(s,3H).13C NMR(101MHz,CDCl3)δ169.13,138.49,136.22,132.10, 134.32,133.96,132.71,132.55,62.61,53.19,51.66,42.75.ESI-MS,m/z:425.2[M+H]+.
实施例16 4-[4-(2,6-二氟苯磺酰基)-1-哌嗪甲酰基]苯甲酸的制备
根据实施例2步骤的方法制备,以4-[4-(2,6-二氟苯磺酰基)-1-哌嗪甲酰基]苯甲酸甲酯为原料,得到副标题化合物4-[4-(2,6-二氟苯磺酰基)-1-哌嗪甲酰基]苯甲酸,为白色粉末固体,产率为78.6%。熔点为251-253℃。1H NMR(400MHz,DMSO)δ12.27(s,1H),8.21(d,J=4.2Hz, 2H),8.03(d,J=4.2Hz,2H),7.71-7.68(m,1H),7.26-7.23(m,2H),3.92-3.87(m,4H),3.44-3.40(m, 4H).13C NMR(101MHz,DMSO)δ169.36,138.00,136.81,135.86,134.60,133.95,127.99,50.07, 43.68.ESI-MS,m/z:409.3[M-H]-.
实施例17 4-[4-(2,6-二氯苯磺酰基)-1-哌嗪甲酰基]苯甲酸甲酯的制备
根据实施例1步骤的方法制备,第三步取代反应用4-(氯羰基)苯甲酸甲酯为原料,得到副标题化合物4-[4-(2,6-二氯苯磺酰基)-1-哌嗪甲酰基]苯甲酸甲酯,为白色粉末固体,产率为 71.6%。熔点为220-222℃。1H NMR(400MHz,CDCl3)δ8.07(d,J=4.2Hz,2H),7.93(d,J=4.2 Hz,2H),7.79-7.75(m,1H),7.45-7.40(m,2H),3.91(s,3H),3.88-3.85(m,4H),3.54-3.49(m,4H). 13C NMR(101MHz,CDCl3)δ169.14,138.19,137.26,136.30,135.01,134.91,134.71,133.51, 62.61,51.49,50.70,41.86.ESI-MS,m/z:458.21[M+H].
实施例18 4-[4-(2,6-二氯苯磺酰基)-1-哌嗪甲酰基]苯甲酸的制备
根据实施例2步骤的方法制备,以4-[4-(2,6-二氯苯磺酰基)-1-哌嗪甲酰基]苯甲酸甲酯为原料,得到副标题化合物4-[4-(2,6-二氯苯磺酰基)-1-哌嗪甲酰基]苯甲酸,为白色粉末固体,产率为78.6%。熔点为241-243℃。1H NMR(400MHz,DMSO)δ12.22(s,1H),8.31(d,J=4.4 Hz,2H),8.09(d,J=4.4Hz,2H),7.79-7.72(m,1H),7.56-7.50(m,2H),3.82-3.76(m,4H), 3.54-3.47(m,4H).13C NMR(101MHz,DMSO)δ166.36,134.01,133.80,132.81,131.72,130.92, 128.93,50.03,42.66.ESI-MS,m/z:442.1[M-H]-.
实施例19 4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸乙酯的制备
1.4-(4-叔丁氧羰基哌嗪)苯甲酸乙酯的制备
将4-溴苯甲酸乙酯(1.26g,5.48mmoL)溶于2mL甲苯中,加入催化量的BINAP和 Pd(OAc)2,1-Boc-哌嗪(1.53g,8.38mmoL)和Cs2CO3(3.57g,10.96mmoL),加热至100℃。 TLC(PE:EA=2:1)监测反应的进程,2h后反应结束,向反应液中加入20mL蒸馏水,用EA 萃取三次(20mL×3),依次用蒸馏水、饱和食盐水洗涤,有机相无水MgSO4干燥。抽滤,滤液减压浓缩,柱层析分离提纯得到白色粉末固体1.25g,产率为60.3%。熔点为120-122℃。1H NMR(400MHz,CDCl3)δ7.93(d,J=8.9Hz,2H),6.86(d,J=8.9Hz,2H),4.32(q,J=7.2Hz, 2H),3.59-3.57(m,4H),3.30-3.28(m,4H),1.48(s,9H),1.36(t,J=7.1Hz,3H).13C NMR(101MHz,CDCl3)δ166.57,154.67,153.88,131.22,120.80,114.12,80.14,60.44,47.74,28.44,14.45. HRMS:C18H25N2O4 H for[M+H]+,calculated 335.1893found 335.1982.
2.4-(1-哌嗪基)苯甲酸乙酯的制备
根据实施例1第二步方法制备,以4-(4-叔丁氧羰基哌嗪)苯甲酸乙酯为原料,得到副标题化合物4-(1-哌嗪基)苯甲酸乙酯的制备,得粗产品黄棕色油状化合物0.70g,产率为78.0%。得到的粗品未经纯化直接投下步反应。
3.4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸乙酯的制备
根据实施例1第一步方法制备,以4-(1-哌嗪基)苯甲酸乙酯、2,6-二氯苯磺酰氯为原料,得到副标题化合物4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸乙酯,为淡黄色粉末固体,产率为77.8%。熔点为128-130℃。1H NMR(400MHz,CDCl3)δ7.93(d,J=9.0Hz,2H),7.48(d,J= 8.0Hz,2H),7.34(dd,J=8.5,7.6Hz,1H),6.87(d,J=9.0Hz,2H),4.32(q,J=7.1Hz,2H), 3.58-3.55(m,4H),3.40-3.38(m,4H),1.36(t,J=7.1Hz,3H).13C NMR(101MHz,CDCl3)δ 166.52,153.55,135.85,134.66,132.83,131.90,131.34,121.62,114.75,60.63,48.26,45.41,14.52. ESI-MS,m/z:443.1[M+H]+,465.2[M+Na]+.
实施例20 4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸的制备
根据实施例2步骤的方法制备,以4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸乙酯为原料,得到副标题化合物4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸,为白色粉末固体,产率为90.1%。熔点为269-270℃。1H NMR(400MHz,DMSO)δ12.38(s,1H),7.83(d,J=8.8Hz,2H),7.76(s, 1H),7.74(s,1H),7.68-7.64(m,1H),7.03(t,J=6.7Hz,2H),3.46(s,4H),3.44(d,J=5.4Hz,4H). 13C NMR(101MHz,DMSO)δ167.61,153.63,135.04,134.65,134.00,132.72,131.33,131.15, 120.85,114.58,47.45,45.39.ESI-MS,m/z:413.2[M-H]-.
实施例21 4-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]苯甲酸乙酯的制备
根据实施例19步骤的方法制备,第三步磺酰化反应用2,6-二氟苯磺酰氯为原料得到副标题化合物4-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]苯甲酸乙酯,为淡黄色粉末固体,产率为87.6%。熔点为130-132℃。1H NMR(400MHz,CDCl3)δ7.91(d,J=8.8Hz,2H),7.48-7.42(m,1H), 7.34-7.30(m,2H),6.83(d,J=8.8Hz,2H),4.30(q,J=7.6Hz,2H),3.55-3.53(m,4H),3.38-3.35 (m,4H),1.35(t,J=7.6Hz,3H).13C NMR(101MHz,CDCl3)δ169.52,156.50,138.81,137.60, 135.81,133.90,133.31,123.61,113.72,60.61,47.26,45.47,14.59.ESI-MS,m/z:411.6[M+H]+.
实施例22 4-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]苯甲酸的制备
根据实施例2步骤的方法制备,以4-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]苯甲酸乙酯为原料,得到副标题化合物4-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]苯甲酸,为白色粉末固体,产率为70.1%。熔点为266-268℃。1H NMR(400MHz,DMSO)δ12.77(s,1H),7.82(d,J=8.8Hz,2H), 7.76-7.72(m,1H),7.64-7.60(m,2H),7.01(d,J=8.8Hz,2H),3.46-3.44(m,8H).13C NMR(101 MHz,DMSO)δ169.01,157.61,138.04,135.65,134.98,133.72,132.36,132.17,120.88,115.56, 48.35,46.37.ESI-MS,m/z:381.5[M-H]-.
实施例23 3-氯-4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸乙酯的制备
1.3-氯-4-(4-叔丁氧羰基哌嗪)苯甲酸乙酯的制备
将4-(4-叔丁氧羰基哌嗪)苯甲酸乙酯(1.20g,3.58mmoL)溶于10mL THF中,加入催化量的浓H2SO4,将NCS(0.48g,3.58mmoL)溶于THF中,25℃下缓慢滴加入反应液中,再移至40℃。TLC(PE:EA=4:1)进行反应进程的监测,反应结束后,减压蒸馏除去THF,向反应液中加入20mL蒸馏水,用EA萃取三次(20mL×3),依次用蒸馏水、饱和食盐水洗涤,有机层用无水MgSO4干燥。蒸干,柱层析分离得到白色固体1.16g产率为87.6%。熔点为80-82℃。1H NMR(400MHz,CDCl3)δ8.03(d,J=1.8Hz,1H),7.88(dd,J=8.4,1.9Hz, 1H),7.00(d,J=8.4Hz,1H),4.34(q,J=7.1Hz,2H),3.62-3.59(m,4H),3.08-3.05(m,4H),1.48 (s,9H),1.37(t,J=7.1Hz,3H).13C NMR(101MHz,CDCl3)δ165.43,154.80,152.94,132.14, 129.24,128.03,125.70,119.69,79.99,61.09,50.83,28.46,14.36.HRMS:C18H25ClN2O4 H for [M+H]+,calculated 369.1503found 369.1606.
2.3-氯-4-(1-哌嗪基)苯甲酸乙酯的制备
根据实施例1第二步方法制备,以2-氯-4-(4-叔丁氧羰基哌嗪)苯甲酸乙酯为原料,得到副标题化合物4-(1-哌嗪基)苯甲酸乙酯的制备,得粗产品黄棕色油状化合物0.68g,产率为73.0%。得到的粗品未经纯化直接投下步反应。
3.3-氯-4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸乙酯的制备
根据实施例1第一步方法制备,以3-氯-4-(1-哌嗪基)苯甲酸乙酯、2,6-二氯苯磺酰氯为原料,得到副标题化合物3-氯-4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸乙酯,为黄色粉末固体,产率为89.7%。熔点为178-179℃。1H NMR(400MHz,CDCl3)δ8.03(d,J=1.9Hz,1H),7.89 (dd,J=8.4,1.9Hz,1H),7.49(d,J=8.1Hz,2H),7.36-7.32(m,1H),7.01(d,J=8.4Hz,1H),4.35 (q,J=7.1Hz,2H),3.62-3.60(m,4H),3.20-3.18(m,4H),1.37(t,J=7.1Hz,3H).13C NMR(101 MHz,CDCl3)δ165.30,152.35,135.78,134.74,132.65,132.13,131.79,129.29,128.11,126.17, 119.91,61.16,50.80,45.88,14.34.ESI-MS,m/z:477.2[M+H]+,499.1[M+Na]+.
实施例24 3-氯-4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸的制备
根据实施例2步骤的方法制备,以3-氯-4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸乙酯为原料,得到副标题化合物3-氯-4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸,为白色粉末固体,产率为88.3%。熔点为238-240℃。1H NMR(400MHz,DMSO)δ7.91(s,1H),7.82(d,J=8.0Hz, 1H),7.77(d,J=7.8Hz,2H),7.69-7.65(m,1H),7.10(d,J=8.1Hz,1H),3.50(s,4H),3.09(s,4H). 13C NMR(101MHz,DMSO)δ168.77,148.95,137.34,135.09,134.63,134.00,132.73,131.50, 129.16,126.83,120.17,51.16,46.12.ESI-MS,m/z:447.2[M-H]-.
实施例25 3-溴-4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸乙酯的制备
1.3-溴-4-(4-叔丁氧羰基哌嗪)苯甲酸乙酯的制备
根据实施例23第一步方法制备,以4-(4-叔丁氧羰基哌嗪)苯甲酸乙酯为原料,用NBS进行溴代反应,得到副标题化合物3-溴-4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸乙酯,为白色粉末固体,产率为90.7%。熔点为72-73℃。1H NMR(400MHz,CDCl3)δ8.23(d,J=1.8Hz,1H), 7.93(dd,J=8.4,1.8Hz,1H),7.00(d,J=8.4Hz,1H),4.34(q,J=7.1Hz,2H),3.63-3.60(m,4H), 3.07-3.04(m,4H),1.48(s,9H),1.37(t,J=7.1Hz,3H).13C NMR(101MHz,CDCl3)δ165.25, 154.82,154.34,135.36,129.88,126.28,120.12,118.71,79.97,61.12,51.27,28.46,14.36.HRMS: C18H25BrN2O4 H for[M+H]+,calculated413.0998found 413.1104.
2.3-溴-4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸乙酯的制备
根据实施例1第一步方法制备,以3-溴-4-(1-哌嗪基)苯甲酸乙酯、2,6-二氯苯磺酰氯为原料,得到副标题化合物3-溴-4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸乙酯,为黄色粉末固体,产率为86.2%。熔点为168-169℃。1H NMR(400MHz,CDCl3)δ8.22(d,J=1.8Hz,1H),7.94 (dd,J=8.4,1.9Hz,1H),7.49(d,J=8.0Hz,2H),7.36-7.32(m,1H),7.01(d,J=8.4Hz,1H),4.35 (q,J=7.1Hz,2H),3.63-3.60(m,4H),3.19-3.16(m,4H),1.37(t,J=7.1Hz,3H).13C NMR(101 MHz,CDCl3)δ165.13,153.72,135.77,135.34,134.77,132.64,131.78,129.94,126.74,120.35, 118.78,61.19,51.23,45.88,14.34.ESI-MS,m/z:521.1[M+H]+,543.0[M+Na]+.
实施例26 3-溴-4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸的制备
根据实施例2步骤的方法制备,以3-溴-4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸乙酯为原料,得到副标题化合物3-溴-4-[4-(2,6-二氯苯磺酰基)-1-哌嗪基]苯甲酸,为白色粉末固体,,产率为91.3%。熔点为258-260℃。1H NMR(400MHz,DMSO)δ8.11(d,J=1.3Hz,1H),7.93(d, J=8.3Hz,1H),7.77(d,J=8.0Hz,2H),7.69-7.65(m,1H),7.27(d,J=8.4Hz,1H),3.52(s,4H), 3.17(s,4H).13C NMR(101MHz,DMSO)δ166.50,153.55,135.10,134.88,134.66,133.97, 132.74,130.34,128.20,121.72,118.40,51.19,45.99.ESI-MS,m/z:493.1[M-H]-.
实施例27 3-溴-4-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]苯甲酸乙酯的制备
根据实施例1第一步方法制备,以3-溴-4-(1-哌嗪基)苯甲酸乙酯、2,6-二氟苯磺酰氯为原料,得到副标题化合物3-溴-4-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]苯甲酸乙酯,为黄色粉末固体,产率为81.4%。熔点为120-122℃。1H NMR(400MHz,CDCl3)δ8.21(d,J=1.8Hz,1H),7.95 (dd,J=8.4,1.9Hz,1H),7.59-7.52(m,1H),7.09-7.02(m,3H),4.35(q,J=7.2Hz,2H),3.48(s, 4H),3.22-3.20(m,4H),1.37(t,J=7.1Hz,3H).13C NMR(101MHz,CDCl3)δ169.84,165.25, 154.19,140.08,134.45,133.24,133.05,132.16,131.13,130.79,127.58,124.85,122.89,121.76, 118.57,111.90,61.29,48.35,45.15,14.39.ESI-MS,m/z:489.2[M+H]+,511.2[M+Na]+.
实施例28 3-溴-4-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]苯甲酸的制备
根据实施例2步骤的方法制备,以3-溴-4-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]苯甲酸乙酯为原料,得到副标题化合物3-溴-4-[4-(2,6-二氟苯磺酰基)-1-哌嗪基]苯甲酸,为白色粉末固体,产率为87.5%。熔点为199-200℃。1H NMR(400MHz,DMSO)δ13.10(s,1H),8.10(d,J=1.8 Hz,1H),7.95(dd,J=8.3,1.7Hz,1H),7.91-7.86(m,1H),7.45(t,J=9.2Hz,2H),7.30(d,J=8.4 Hz,1H),3.38-3.36(m,4H),3.23(d,J=4.3Hz,4H).13C NMR(101MHz,DMSO)δ166.31, 160.73,158.18,153.75,137.10,136.99,136.88,134.90,130.38,127.35,121.80,118.36,114.50, 114.27,114.04,50.75,46.00.HRMS:C17H15BrF2N2O4S H for[M-H]-,calculated 458.9904found 459.0021.
实施例29药理活性测试
1、实验材料
RPMI 1640培养基、MEM培养基及胎牛血清购自Hyclone;G418购自美国Invitrogen公司;荧光素酶检测试剂盒(Luciferase Assay System)购自Promega公司。
2、实验方法
细胞培养:人肝癌细胞株HepG2细胞培养于含10%胎牛血清的MEM培养基中;ABCA1p- LUC HepG2培养于含500μg·mL-1G418和10%胎牛血清的MEM培养基中;所有细胞都在 5%CO2培养箱中37℃贴壁培养。
质粒转染:采用LipofectamineTM2000(Invitrogen)介导的方法,将重组报告基因质粒 pGL3-ABCAp(含有人ABCA1基因上游调控序列)和pcDNA3(含有neo基因)共转染入HepG2细胞。经600μg·mL-1G418处理14天后,带有G418抗性的细胞克隆形成。对形成的细胞克隆进行一系列单克隆化操作,同时跟踪其荧光素酶活性。将高表达荧光素酶且呈现正常细胞周期的稳定细胞克隆命名为ABCA1p-LUC HepG2。
活性筛选:取对数生长期的ABCA1p-LUC HepG2细胞,以细胞数约5×105/mL接种于96 孔透明底白板,每孔加入单细胞悬液100μL。将待测化合物分别用含有5%FBS的RPMI-1640 细胞培养基、含有5%FBS的MEM细胞培养基稀释浓度为100μM、50μM、25μM、12.5μM、6.25μM、3.125μM、1.5625μM、0.78125μM、0.39μM、0.039μM、0.0039μM,共11个浓度。6-8h待细胞贴壁后,移除原培养基,用PBS漂洗细胞一次。每孔分别加入预先用细胞培养基稀释好的一定浓度的化合物溶液200μl,每个化合物每个浓度设两个复孔。18-24h后移除培养基,用PBS轻轻漂洗后,每孔加入25μl细胞裂解液,37℃裂解细胞30-45min。待细胞完全裂解后,每孔迅速加入50μl萤火虫荧光素酶检测试剂,立即将分析白板放入酶标仪中检测。计算待测样品对ABCA1活性的表达率,表达率(%)=加入化合物后的荧光素酶活性 /加入空白对照样品(DMSO)后的荧光素酶活性×100。
3、实验结果
Figure BDA0003918891630000141
上述试验说明,本发明提供的苯磺酰哌嗪类化合物可以有效提高ABCA1的表达水平,因而具有开发成提高ABCA1表达水平的药物的前景,具有开发成治疗通过提高ABCA1表达水平进而得到缓解的疾病的药物的前景,如开发成降胆固醇、防治动脉粥样硬化的药物。
上述实施例的作用在于具体介绍本发明的实质性内容,但本领域技术人员应当知道,不应将本发明的保护范围局限于该具体实施例。

Claims (4)

1.一种苯磺酰哌嗪类化合物,其特征在于,其化学结构式为如下结构式中的一种:
Figure FDA0003918891620000011
Figure FDA0003918891620000021
Figure FDA0003918891620000031
Figure FDA0003918891620000041
2.权利要求1所述苯磺酰哌嗪类化合物用于制备提高ABCA1表达水平的药物的用途。
3.权利要求1所述苯磺酰哌嗪类化合物用于制备治疗通过提高ABCA1表达水平进而得到缓解的疾病的药物的用途。
4.权利要求1所述苯磺酰哌嗪类化合物用于制备降低胆固醇水平、防治动脉粥样硬化的药物的用途。
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