CN114656460A - 一种新型吡嗪结构fxr激动剂、制备方法及应用 - Google Patents
一种新型吡嗪结构fxr激动剂、制备方法及应用 Download PDFInfo
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- CN114656460A CN114656460A CN202011524465.9A CN202011524465A CN114656460A CN 114656460 A CN114656460 A CN 114656460A CN 202011524465 A CN202011524465 A CN 202011524465A CN 114656460 A CN114656460 A CN 114656460A
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- C07—ORGANIC CHEMISTRY
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- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
- C07D413/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
- A61K31/42—Oxazoles
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- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/4965—Non-condensed pyrazines
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- A—HUMAN NECESSITIES
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- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/4965—Non-condensed pyrazines
- A61K31/497—Non-condensed pyrazines containing further heterocyclic rings
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- A—HUMAN NECESSITIES
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- A61P1/16—Drugs for disorders of the alimentary tract or the digestive system for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D261/00—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings
- C07D261/02—Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Description
技术领域
本发明涉及一种药物化合物的制备方法,特别涉及一种新型吡嗪结构FXR激动剂、制备方法及应用。
背景技术
自1999年发现胆汁酸能激活FXR产生多种生理功能以来,具有选择性和高活性的FXR激动剂相继被发现,这些FXR激动剂按结构可分为甾体类和非甾体类。甾体类主要为鹅脱氧胆碱(chenodeoxycholic acid,CDCA,胆汁酸其中一种)及其衍生物和Merck公司开发的FXR激动剂MFA-1;非甾体类包括异噁唑类化合物GW4064及其类似物,Fexaramine类化合物,氮杂并吲哚类化合物XL335及其衍生物,苯咪唑基酰胺类化合物,吡唑啶二酮类化合物等。
非酒精性脂肪性肝病(non-alcoholic fatty liver disease NAFLD)是一组无过量饮酒史,肝组织学改变与酒精性肝病相类似,以肝实质细胞脂肪变性和脂肪贮积为特征的临床病理综合征,包括单纯性脂肪肝以及由其演变的脂肪性肝炎和肝硬化。现今NAFLD已成为仅次于乙肝的影响人类健康的第二类慢性肝脏疾病。NASH是一种肝内脂肪积聚而导致的慢性进展性肝病,可导致肝硬化、肝衰竭及肝细胞癌,确切的说,NASH只是非酒精性脂肪性肝病(NAFLD)病程发展的一个阶段。
临床在研药物中,奥贝胆酸是一种FXR激动剂。在2016年5月被FDA批准,用于治疗原发性胆汁酸肝硬化(PBC),也是第一个进入III期临床的NASH药物。奥贝胆酸针对伴有2~3级肝纤维化的NASH患者的关键III期REGENERATE研究的期中分析取得积极结果。
其他的FXR激动剂如PX-104已经进入II期临床,主要适应症也是非酒精性脂肪肝病(NAFLD)。
2000年Maloney等报道了第一个具有高活性和高选择性的异噁唑类FXR激动剂GW4064,其胞外活性为EC50=15nmol·L-1,在细胞水平的EC50值为90nmol·L-1,可以完全激动FXR靶点蛋白;但在药代动力学方面,在t1/2=3.5小时的口服利用度只有10%,不具备成药的条件,所以作为研究FXR功能和相关疾病的工具化合物。随后GSK、Novartis、Roche、Lilly、Phenex等公司分别对GW4064的结构进行了改造,以求得到活性更高,口服利用度更好,更具成药性质的新化合物。到目前为止,数目众多的异噁唑类化合物被成功合成,但在活性、水溶性及口服生物利用度等成药性方面均有不足,
中国专利CN103702719A公开了新型FXR(NR1H4)结合及活性调节化合物,其中具体公开了如下化合物:
以及这些化合物在治疗非酒精性脂肪肝病(NAFLD)或非酒精性脂肪性肝炎(NASH)等疾病中的应用。这些化合物是在WO2011/020615公开的化合物的基础上进行的改进,通过替换1,2-环亚丙基的1,3-环亚丁基或1,3-亚氮杂环丁烷基上引入极性羟基实现的。结果表明,所得化合物保持了在FXR受体上的活性,而且显现出改进的物化性能,例如较高的水溶性和/或膜渗透性。而更好的水溶性和膜渗透性导致更高的口服生物利用度。但是,上述化合物在法尼醇核受体FXR靶点的激活活性相对较低。
发明内容
为了解决上述技术问题,本发明提供一种具有式(I)结构的化合物,或其药学上可接受的盐,水合物、溶剂化物、药学上可接受的盐或其拆分的单一异构体:
R2选自:C1-C6的烃基、环烃基、芳香基、取代烃基或取代芳香基;
R3选自:-H或C1~C3的烃基、环烃基、取代烃基;
X为C或N。
优选的,其中,
R1选自-Br;
R2选自C1-C3的烃基、环烃基;
R3选自-CH3;
X为C或N。
更优选的,其中,
最优选的选自以下化合物为:
本发明进一步提供以所述的化合物作为活性成分的药物组合物。
所述的药物组合物,根据需要,还可含有药学上可接受的载体。
本发明进一步提供所述的化合物的制备方法,包括如下步骤:
本发明所述的化合物在制备治疗非酒精性脂肪肝的药物中的用途。
其中所述非酒精性脂肪肝,为非酒精性脂肪肝炎。
本发明所述药物组合物在制备治疗非酒精性脂肪肝的药物中的用途,优选非酒精性脂肪肝炎。
本发明所述化合物包括其所有异构体形式和异构体混合物的形式。也可以以溶剂化物的形式存在。
本发明的药物组合物,优选的是单位剂量的药物制剂形式,在制成药物制剂时可以制成任何可药用的剂型,这些剂型选自:片剂、糖衣片剂、薄膜衣片剂、肠溶衣片剂、胶囊剂、硬胶囊剂、软胶囊剂、口服液、***剂、颗粒剂、混悬剂、溶液剂、注射剂、栓剂、软膏剂、硬膏剂、霜剂、喷雾剂、贴剂。优选的是口服制剂形式,最佳优选的是片剂,胶囊剂。
可以采用制剂学常规技术制备该药物制剂,所述药学上可接受的的载体包括但不限于:甘露醇、山梨醇、山梨酸或钾盐、焦亚硫酸钠、亚硫酸氢钠、硫代硫酸钠、盐酸半胱氨酸、巯基乙酸、蛋氨酸、维生素A、维生素C、维生素E、维生素D、氮酮、EDTA二钠、EDTA钙钠,一价碱金属的碳酸盐、醋酸盐、磷酸盐或其水溶液、盐酸、醋酸、硫酸、磷酸、氨基酸、富马酸、氯化钠、氯化钾、乳酸钠、木糖醇、麦芽糖、葡萄糖、果糖、右旋糖苷、甘氨酸、淀粉、蔗糖、乳糖、硅衍生物、纤维素及其衍生物、藻酸盐、明胶、聚乙烯吡咯烷酮、甘油、丙二醇、乙醇、吐温60-80、司盘-80、蜂蜡、羊毛脂、液体石蜡、十六醇、没食子酸酯类、琼脂、三乙醇胺、碱性氨基酸、尿素、尿囊素、碳酸钙、碳酸氢钙、聚乙二醇、环糊精(如β-环糊精)、磷脂类材料、高岭土、滑石粉、硬脂酸钙、硬脂酸镁等。
本发明的药物组合物,在制成药剂时,单位剂量的药剂可含有本发明的药物活性物质0.1-1000mg,其余为药学上可接受的载体。药学上可接受的载体以重量计可以是制剂总重量的0.1-99.9%。
本发明的药物组合物在使用时根据病人的情况确定用法用量。
本发明优选的制备方法包括以下步骤:
1)异噁唑中间体合成方法为,苯甲醛1a与盐酸羟胺在碱性条件下缩合得到苯甲醛肟1b,肟1b在NCS/DMF条件下生成氯代苯甲醛肟1c;接着与酮酸酯通过1,3-偶极环加成反应得到三取代异噁唑环1d-1f;氮气保护下加入DIBAL-H,还原酯键为羟基,得到中间体1-a-1-c;
2)异噁唑中间体与二溴吡嗪在碱性条件下发生亲核取代反应,得到吡嗪中间体2-a-2-c;控制温度保持在零下78℃,用正丁基锂进行锂溴交换与四元环2a-d进行碳-碳键的连接,生成末端酯基产物3-a-3-g,最后碱性条件下发生酯水解反应得到目标化合物TM。
本发明的有益效果:本发明的化合物尤其是TM-01和TM-09对肝脏甘油三酯和胆固醇水平有明显的降低作用,提高了小鼠肝重和肝脏体重比,降低了病理评分和肝脏中的胶原沉积,对非酒精性脂肪肝有改善效果。
本发明的化合物对法尼醇核受体FXR靶点的具有较强激动活性,并表现出了在细胞膜间的高通透性,且在高脂饲喂小鼠模型中,对脂肪富集的肝脏重量呈现剂量依赖影响,预测在肥胖、糖尿病和非酒精性脂肪肝(NASH)等代谢类疾病的治疗中表现出较好的用途,以下通过实验数据说明本发明的有益效果。
试验例一、本发明化合物对FXR受体的激动活性研究
实验步骤:FXR(是GST标记的重组人FXR蛋白,厂家Invitroren,货号PV4835)和SRC-1(类固醇受体共激活因子-1)在冰上进行融化,用缓冲液配制ABC三种溶液,A液,0.4nM FXR和30nM SRC-1;B液,10ug/ml Acceptor Beads(受体微珠);C液,10ug/ml DonorBeads(供体微珠)。将A液加入到板中,每孔15uL。室温孵育1小时。将B液加入到板中,每孔7.5uL。室温孵育1小时。将C液加入板中,每孔7.5uL。室温孵育1小时。酶标仪Envision读数。数据用Prism 5.0进行曲线拟合,计算出EC50。结果见表1。
表1
根据表1中的样品活性结果,去除活性较差的去除TM-05、TM-07、TM-10,选择其余7个样品进行了细胞内FXR-TR-FRET实验。
试验例二、细胞内FXR-TR-FRET实验
1、细胞培养:a、用适当的密度在10ml完整的胰蛋白酶中胰蛋白酶消化皿和种子细胞中在37℃。b、5%的CO2和潮湿条件下培养细胞24小时。
2、细胞接种和转染:FuGENE HD转染试剂用作转染试剂。
a根据以下流程准备转染混合物:
b用力敲打试管以混合内容物。将混合物在室温下孵育15分钟。
c用胰蛋白酶消化盘并确定细胞密度。
d将细胞浆以500,000个细胞/ml的密度稀释至所需的体积(对于96孔板,为100ul/孔)。
e将所需体积的先前制备的转染混合物添加到两个细胞浆液中,然后将100ul/孔的细胞浆液分配到测定板上。
f在加湿条件下于37℃,5%CO2下将测定板孵育24小时。
3、化合物配制:
a、准备FXR工作浓度为10mM的化合物库存,然后在100%DMSO中稀释3倍。
b、将10ul化合物添加到90ul完全培养基中。
c、向每个孔中加入5ul化合物溶液。
d、将板在37℃,5%CO2和湿润条件下孵育18小时。
4、双重荧光素酶测定:萤火虫和海肾荧光素酶信号通过Promega的DualLuciferase Reporter Assay System进行分析。Envision用作光度计。
5、结果计算:通过将萤火虫信号除以海肾信号来归一化数据值。“F/R”表示“萤火虫/Renilla”。这种标准化消除了每个孔中不同细胞数量和转染效率的差异。计算%Activation(活性)值。通过以下公式计算%Activation值。
X是每个浓度点的“F/R”值。最小值是无化合物对照的平均“F/R”值。最大值是参考化合物对照的平均值“F/R”值。
6、活性结果见表2,
表2:活性结果
样品编号 | EC<sub>50</sub>(μM) |
TM-01 | 1.28 |
TM-02 | 3.14 |
TM-03 | >5000 |
TM-04 | >5000 |
TM-06 | 1.79 |
TM-08 | 1.51 |
TM-09 | 0.26 |
GW4064 | 0.30 |
M3 | 1.49 |
对受试化合物对于FXR-TR-FRET的活性进行了研究,此类含吡嗪结构的化合物,相比对照品GW4064和M3,多数表现出了细胞水平上较好的激动活性。
根据FXR-TR-FRET实验结果,去除TM-03和TM-04,对剩余部分化合物进行Caco-2单层细胞膜转运实验。
试验例三、Caco-2单层细胞膜转运实验
利用人源性结肠腺癌细胞系Caco-2单层细胞模型研究目标化合物由绒毛面侧(apical,AP)到基底面侧(basolateral,BL)以及从BL侧到AP侧的双向转运情况,应用高效液相色谱法定量分析,计算转运参数和表观渗透系数(apparentpermeabilitycoefficient,Papp)以及外排率(efflux ratio),以M3为阳性对照,以P-gp的作用底物地高辛为参照物,选取这5个细胞内活性较高的样品进行试验,来预测这类吡嗪结构异噁唑类衍生物的体内口服生物利用度以及与P-gp的亲和作用情况。
结果见表3、4、5
表3:在Caco-2细胞模型中的A-to-B的表观渗透系数
表4:在Caco-2细胞模型中的透膜质量回收率
表5在Caco-2细胞模型中的外排率
注:a外排率=Papp B-A/Papp A-B
实验结果如表3所示,本发明的这一系列吡嗪结构异噁唑类化合物A-to-B的Papp值都高于P-gp的底物地高辛(Papp A-to-B<0.04),优于M3(Papp A-to-B<0.15),特别是TM-01、TM-02,TM-06和TM-09这四个化合物的Papp,A-to-B值>2.5×10-6cm/s,属于高通透性底物。这些数据表明这类吡嗪结构异噁唑类化合物具有良好的通膜能力,预测在体内的吸收优于M3。
表4中显示的是这些含吡嗪结构化合物的透膜后的回收率情况。对这5个化合物对其双向转运情况进行评价,结果如表5所示,从外排率上可以看到相对于M3来说,这类衍生物都很大程度上减弱了外排情况,其外排率均远远小于对照品地高辛(外排率>262.93),预测在体内的口服吸收也会相应得到提高。
根据试验例三结果,去除效果较差的TM-08,保留其他化合物进行动物实验,关于对照组:M3因为透膜效果较差,被排除。GW4064因为报道成药性较差,生物口服利用度较低,目前作为前期研究的一个工具分子,被排除。M2也是作为前期一个对照化合物,在首次蛋白水平的筛选中活性低于本专利中化合物,被排除。奥贝胆酸是目前非酒精性脂肪领域处在临床研究的药物,接近获批,选取作为动物试验的对照品。
试验例四:高脂饲料饲喂(MCD)模拟非酒精性脂肪肝的药效试验
奥贝胆酸是目前非酒精性脂肪领域处在临床研究的药物,接近获批,选取作为动物试验的对照品。
1、实验动物
动物品系:C57/BL6,动物等级:SPF级,性别:雄性,动物年龄:8周龄,动物接受日期:2018年09月28日,动物来源:上海灵畅生物科技有限公司,动物合格证号:SCXK(沪)2013-00182013001836799,小鼠饲养环境:温度20-26℃,湿度40-70%,12小时昼夜循环。
2、试验设计与方法
2.1药物配置
2.1.1溶媒配制:
5%Solutol HS15/生理盐水:Solutol HS15(聚乙二醇15羟硬脂酸酯增溶剂)在37℃水浴锅中溶化后,取5ml溶于100ml生理盐水中,充分搅拌后备用。
2.1.2给药溶液配制:
奥贝胆酸/5%Solutol HS15/生理盐水:精确称取12mg奥贝胆酸,加入0.15mlSolutol HS15使之充分溶解,加入2.85ml生理盐水,剧烈涡旋,超声助溶使其充分溶解。
TM-01组/5%Solutol HS15/生理盐水:取2.5ml 6mg/ml的TM-01悬浮液,加入2.5ml 5%Solutol HS15/生理盐水,充分混匀。
TM-02组/5%Solutol HS15/生理盐水:取2.5ml 6mg/ml的TM-02悬浮液,加入2.5ml 5%Solutol HS15/生理盐水,充分混匀。
TM-06组/5%Solutol HS15/生理盐水:取2.5ml 6mg/ml的TM-06悬浮液,加入2.5ml 5%Solutol HS15/生理盐水,充分混匀。
TM-09组/5%Solutol HS15/生理盐水:取2.5ml 6mg/ml的TM-09悬浮液,加入2.5ml 5%Solutol HS15/生理盐水,充分混匀。
所有药物给药前新鲜配制。
2.2给药途径及给药容积
溶媒与测试物灌胃给药,给药体积为10ml/kg;
2.3实验过程、分组和具体给药方式
70只8周龄的C57/BL6小鼠到达动物房后,进行适应喂养,待平均体重到达23g后,根据体重将小鼠随机分成7组,并更换成模型饲料。第一组给予对照饲料MCS,其余组给予MCD粮食,同时各组小鼠按以下方式接受化合物处理:
组1对照组:MCS,溶媒,每天一次灌胃给药;
组2模型组:MCD,溶媒,每天一次灌胃给药;
组3奥贝胆酸组:MCD,40mpk奥贝胆酸,每天一次灌胃给药;
组4.TM-01组:MCD,30mpk TM-01,每天一次灌胃给药;
组5.TM-02组:MCD,30mpk TM-02,每天一次灌胃给药;
组6.TM-06组:MCD,30mpk TM-06,每天一次灌胃给药;
组7.TM-09组:MCD,30mpk TM-09,每天一次灌胃给药;
2.4实验方法
在实验过程中,每周测定体重和摄食量。给药21天后,用微量毛细管进行尾尖取血进行AST,ALT测定。给药28天后,终止小鼠,心脏取血,收集肝组织,称重,一部分用液氮速冻用于后续分析,另一部分固定进行病理学分析。
2.4.1血液指标测定
小鼠血液在5000rpm离心10分钟,收集上清,用于TG(甘油三酯),TC(总胆固醇),HDL(高密度脂蛋白),LDL(低密度脂蛋白),AST(谷草转氨酶)和ALT(谷丙转氨酶)的测定。
给药三周和四周后的AST和ALT按试剂盒说明书进行测定;给药4周后的血液脂质指标送艾迪康医学检验所有限公司检测。
2.4.2血液细胞因子的测定
小鼠血液在5000rpm离心10分钟,收集上清,用于细胞因子(mKC和MCP1)的检测。检测前血清储存于-80℃。
mKC和MCP1的测定按试剂盒说明书进行。
2.4.3肝脏TC和TG的测定
肝脏从-80℃取出后,PBS(磷酸盐缓冲生理盐水)中匀浆,氯仿甲醇有机相抽提后,用试剂盒进行TC和TG的测定,用蛋白量进行归一化。
2.4.4组织收集
给药4周后,麻醉小鼠,心脏取血后,分离肝脏称重,取右侧叶用液氮速冻,保存于-80℃用于肝脏脂质分析。分离左侧叶,于10%***中固定,用于后续的HE和Sirius Red染色。
2.5结果处理和数据分析
试验结果以均数±标准误(Mean±SEM)表示,用T-Test进行显著性分析。与模型组比较,*表示p<0.05为有显著性差异,**表示p<0.01为有强显著性差异,***p<0.001为有极显著性差异。
3试验结果
3.1化合物对小鼠体重和摄食量的影响
小鼠经MCD喂养后,体重即如预期显著性下降。并且随着时间的延长,体重持续下降。经化合物处理的各实验组较模型组体重也略有下降(表6)。
表6:化合物对小鼠体重的影响
表7:化合物对小鼠摄食量的影响
3.2化合物对血液指标的影响
MCD和化合物处理3周后,取尾尖血进行AST和ALT测定。结果表明,模型组的ALT较对照组升高了约3倍,AST升高了2倍以上,奥贝胆酸组导致了比模型组更高的AST和ALT水平。TM-01组、TM-06组和TM-09组的ALT和AST较模型组有显著下降,TM-02组与奥贝胆酸组表现一致。(表8)
MCD和化合物处理4周后,模型组中动物血脂水平略高于对照组。奥贝胆酸处理降低了血液中的胆固醇含量。TM-01组、TM-02组、TM-06组和TM-09组对血脂有不同的降低作用(表9)。
表8:化合物处理3周和4周后AST和ALT变化
表9:化合物处理4周后血脂水平变化
组别 | TG(mmol/L) | TC(mmol/L) | LDL(mmol/L) | HDL(mmol/L) |
组1-control | 0.52±0.10* | 0.77±0.09*** | 2.05±0.06*** | 0.34±0.03** |
组2-model+vehicle | 0.60±0.03 | 1.12±0.08 | 2.90±0.04 | 0.60±0.01 |
组3-obeticholic acid | 0.56±0.02 | 0.86±0.04** | 2.80±0.03 | 0.55±0.01** |
组4-TM-01:30mpk | 0.53±0.10 | 0.95±0.44* | 2.61±0.26* | 0.59±0.11 |
组5-TM-02:30mpk | 0.57±0.06 | 1.25±0.14 | 2.93±0.12 | 0.61±0.02* |
组6-TM-06:30mpk | 0.59±0.02 | 0.97±0.16 | 3.01±0.09* | 0.42±0.06*** |
组7-TM-09:30mpk | 0.54±0.04* | 0.86±0.09* | 2.52±0.07** | 0.56±0.02* |
3.3化合物对肝脂含量的影响
MCD和化合物处理4周后,收集肝脏测定脂质,肝脂含量用蛋白进行均一化。在模型组中,肝脏甘油三酯和胆固醇显著高于对照组。奥贝胆酸处理后,这两个指标均略有所下降。TM-01组、TM-02组、TM-06组和TM-09组对肝脏甘油三酯(liver TC)和总胆固醇的含量(liver TG)有不同的降低效果,其中TM-01组和TM-09组表现出显著降低水平。(表10)。
表10:化合物处理后肝脏脂含量变化
组别 | liver TG(mol/g protein) | liver TC(mol/g protein) |
组1-control | 112.55±8.59*** | 21.47±1.29*** |
组2-model+vehicle | 339.42±40.24 | 44.94±5.50 |
组3-obeticholic acid | 298.46±36.25 | 35.7±3.38 |
组4-TM-01:30mpk | 246.69±54.09* | 34.85±8.20 |
组5-TM-02:30mpk | 307.38±26.30 | 41.67±5.73 |
组6-TM-06:30mpk | 303.5±46.52 | 38.23±5.04 |
组7-TM-09:30mpk | 231.73±18.4* | 37.67±3.65* |
3.4化合物对小鼠肝重的影响
MCD和化合物处理4周后,收集肝脏,称重。模型组小鼠的肝重和肝脏体重比均显著低于对照组。分析结果时意外的发现此类化合物对肝重有明显的影响,其中TM-01组、TM-02组、TM-06组和TM-09组均显著提高了小鼠肝重(liver weight)和肝脏体重比(即liver/body weight)。(表11)。
表11:化合物处理对肝重的影响
3.5化合物肝脏病理的影响
小鼠肝脏固定后,进行HE和Sirius Red染色。染色结束后,全片扫描。随机选取6个20x视野。HE染色的6个20x视野综合进行病理评分(即HE score)。病理评分标准如表12。Sirius Red染色的6个20x视野图像用Image J计算Sirius Red的阳性染色面积与总面积比(即Sirius red staining area)。
表12:病理评分标准
经MCD喂养4周后,模型组肝脏中有脂肪细胞堆积,间或可见炎性细胞浸润。奥贝胆酸处理后,脂肪细胞堆积和炎性细胞浸润更为显著。病理评分显示,MCD喂养后,模型组病理评分在2左右,奥贝胆酸处理后评分有所升高,而化合物处理后,病理状况有一定的减轻(表13)。
表13:病理评分结果
3.4结论:MCD喂养小鼠4周后,诱导了血液中AST,ALT和脂质的上升,促使脂肪在肝脏中的堆积和炎性灶的生成,建模具有非酒精性脂肪肝的各项指标特征。
本发明提供的化合物尤其是TM-01和TM-09对肝脏甘油三酯和胆固醇水平有明显的降低作用,提高了小鼠肝重和肝脏体重比,并在一定程度上降低了病理评分和肝脏中的胶原沉积,初步判定在动物体内对非酒精性脂肪肝有改善效果。
说明书附图
图1为本发明化合物TM-1的1H-NMR谱图;
图2为本发明化合物TM-1的质谱图;
图3为本发明化合物TM-2的1H-NMR谱图;
图4为本发明化合物TM-2的质谱图;
图5为本发明化合物TM-3的1H-NMR谱图;
图6为本发明化合物TM-3的13C-NMR谱图;
图7为本发明化合物TM-3的质谱图;
图8为本发明化合物TM-4的1H-NMR谱图;
图9为本发明化合物TM-4的质谱图;
图10为本发明化合物TM-5的1H-NMR谱图;
图11为本发明化合物TM-5的质谱图;
图12为本发明化合物TM-6的1H-NMR谱图;
图13为本发明化合物TM-6的13C-NMR谱图;
图14为本发明化合物TM-6的质谱图;
图15为本发明化合物TM-7的1H-NMR谱图;
图16为本发明化合物TM-7的质谱图;
图17为本发明化合物TM-8的1H-NMR谱图;
图18为本发明化合物TM-8的13C-NMR谱图;
图19为本发明化合物TM-8的质谱图;
图20为本发明化合物TM-9的1H-NMR谱图;
图21为本发明化合物TM-9的13C-NMR谱图;
图22为本发明化合物TM-9的质谱图;
图23为本发明化合物TM-10的1H-NMR谱图;
图24为本发明化合物TM-10的13C-NMR谱图;
图25为本发明化合物TM-10的质谱图。
具体实施方式
以下结合具体实施例详细地解释本发明,使得本领域技术人员更全面地理解本专利。具体实施例仅用于说明本发明的技术方案,并不以任何方式限定本发明。
1(3-(2,6-二氯苯基)-4-羟甲基-5-环丙基异噁唑)中间体的合成路线如下:
合成方法如下:
1.1 2,6-二氯苯甲醛肟的合成
将盐酸羟氨(11g,1eq)和氢氧化钠(6.3g,1.2eq)溶于水中,室温下加入2,6-二氯苯甲醛(25g,0.14mmol,1.2eq)的乙醇(200mL)溶液,90℃下搅拌1小时,冷却至室温后减压蒸馏除去乙醇,抽滤,水洗涤滤饼(2×100mL),干燥后得白色固体(2,6-二氯苯甲醛肟)9.46g,收率84%。
1.2 2,6-二氯-N-羟基-氯代苯甲醛肟的合成
于40℃下,将N-氯代丁二酰亚胺(16.08g,0.12mol,1eq)的DMF(90mL)溶液缓慢滴加到2,6-二氯苯甲醛肟(22.8g,0.12mol,1eq)的DMF(90mL)溶液中,搅拌,TLC监测,反应完全后冷却到室温,将溶液倒入冰水(200mL)中,甲基叔丁基醚萃取3次(3×100mL),合并有机相后用水(3×100mL)、饱和食盐水(100mL)洗涤。无水硫酸钠干燥酯层后抽滤,减压蒸馏除去有机溶剂得黄色油状粗品,硅胶柱层析法梯度洗脱分离纯化(PE:EA=5:1,v/v)得白色固体(2,6-二氯-N-羟基-氯代苯甲醛肟)26g,收率97%。
1.3 3-(2,6-二氯苯基)-5-环丙基异噁唑-4-甲酸甲酯的合成
将3-环丙基-3-氧代丙酸甲酯(637.7mg,4.49mmol,1eq)加入到100mL反应瓶,胶塞密闭,用针管把三乙胺(907.9mg,8.97mmol,2eq)加入到反应瓶内,室温下剧烈搅拌30min,反应液冰浴冷却低于10℃,搅拌下缓慢滴加2,6-二氯-N-羟基-氯代苯甲醛肟(1.0g,4.49mmol,1eq)的乙醇溶液(监测内温<24℃),缓慢升至室温,剧烈搅拌过夜,减压蒸馏除去乙醇,加入乙酸乙酯萃取3次(3×100mL),有机层用水(3×100mL)、饱和食盐水(100mL)洗涤,无水硫酸钠干燥除去溶剂得油状粗品。硅胶柱层析法梯度洗脱分离纯化(PE:EA=40:1,v/v)得白色固体(3-(2,6-二氯苯基)-5-环丙基异噁唑-4-甲酸甲酯)0.89g,收率55%。
1.4 3-(2,6-二氯苯基)-4-羟甲基-5-环丙基异噁唑的合成
氮气保护和冰浴条件下将二异丁基氢化铝的甲苯溶液(4.0mL,6.0mmol,2.1eq,1.5M的甲苯溶液)缓慢滴加至3-(2,6-二氯苯基)-5-环丙基异噁唑-4-甲酸甲酯(0.89g,2.8mmol,1eq)的无水THF中,升至室温剧烈搅拌过夜。重新将反应液冷却至0℃,缓慢滴加甲醇(2mL)搅拌10min,反应液倒入50mL冰水混合物中,生成凝胶状悬浮物。硅藻土过滤,用乙酸乙酯(3×100mL)萃取三次,合并酯层,用水(3×100mL)和饱和食盐水(100mL)洗涤,无水硫酸钠干燥,过滤除去溶剂得白色固体。硅胶柱层析法梯度洗脱分离纯化(PE:EA=20:1,v/v)得到白色固体(3-(2,6-二氯苯基)-4-羟甲基-5-环丙基异噁唑)0.45g,收率56%。
2、3-(2,6-二氯苯基)-4-羟甲基-5-异丙基异噁唑的合成
2.1 3-(2,6-二氯苯基)-5-异丙基异噁唑-4-甲酸甲酯的合成
将异丁酰乙酸甲酯(16.6mL,0.12mol,1eq)加入到100mL反应瓶,胶塞密闭,用针管把三乙胺(33.25mL,0.24mol,2eq)加入到反应瓶内,室温下剧烈搅拌30min,反应液冰浴冷却低于10℃,搅拌下缓慢滴加2,6-二氯-N-羟基-氯代苯甲醛肟(26.6g,0.12mol,1eq)的乙醇溶液(监测内温<24℃),缓慢升至室温,剧烈搅拌过夜,减压蒸馏除去乙醇,加入乙酸乙酯萃取3次(3×100mL),有机层用水(3×100mL)、饱和食盐水(100mL)洗涤,无水硫酸钠干燥除去溶剂得油状粗品。硅胶柱层析法梯度洗脱分离纯化(PE:EA=40:1,v/v)得白色固体(3-(2,6-二氯苯基)-5-异丙基异噁唑-4-甲酸甲酯)21g,收率56%。
2.2 3-(2,6-二氯苯基)-4-羟甲基-5-异丙基异噁唑的合成
氮气保护和冰浴条件下将二异丁基氢化铝的甲苯溶液(92mL,0.14mol,2.1eq,1.5Μ的甲苯溶液)缓慢滴加至3-(2,6-二氯苯基)-5-异丙基异噁唑-4-甲酸甲酯(20g,0.06mol,1eq)的无水THF中,升至室温剧烈搅拌过夜。重新将反应液冷却至0℃,缓慢滴加甲醇(20mL)搅拌10min,反应液倒入200mL冰水混合物中,生成凝胶状悬浮物。硅藻土过滤,用乙酸乙酯(3×100mL)萃取三次,合并酯层,用水(3×100mL)和饱和食盐水(100mL)洗涤,无水硫酸钠干燥,过滤除去溶剂得白色固体。硅胶柱层析法梯度洗脱分离纯化(PE:EA=40:1,v/v)得到白色固体(3-(2,6-二氯苯基)-4-羟甲基-5-异丙基异噁唑)18g,收率94%。
3 3-(2,6-二氯苯基)-4-羟甲基-5-苯基异噁唑的合成
3.1 3-(2,6-二氯苯基)-5-苯基异噁唑-4-甲酸乙酯的合成
将苯甲酰乙酸乙酯(5.7mL,50mmol,1eq)加入到100mL反应瓶,胶塞密闭,用针管把三乙胺(13.86mL,100mmol,2eq)加入到反应瓶内,室温下剧烈搅拌30min,反应液冰浴冷却低于10℃,搅拌下缓慢滴加2,6-二氯-N-羟基-氯代苯甲醛肟(10g,50mmol,1eq)的乙醇溶液(监测内温<24℃),缓慢升至室温,剧烈搅拌过夜,减压蒸馏除去乙醇,加入乙酸乙酯萃取3次(3×100mL),有机层用水(3×100mL)、饱和食盐水(100mL)洗涤,无水硫酸钠干燥除去溶剂得油状粗品。硅胶柱层析法梯度洗脱分离纯化(PE:EA=40:1,v/v)得白色固体(3-(2,6-二氯苯基)-5-苯基异噁唑-4-甲酸甲酯)11.7g,收率65%。
3.2 3-(2,6-二氯苯基)-4-羟甲基-5-苯基异噁唑的合成
氮气保护和冰浴条件下将二异丁基氢化铝的甲苯溶液(18mL,27mmol,2.1eq,1.5M的甲苯溶液)缓慢滴加至3-(2,6-二氯苯基)-5-苯基异噁唑-4-甲酸甲酯(4.72g,13mmol,1eq)的无水THF中,升至室温剧烈搅拌过夜。重新将反应液冷却至0℃,缓慢滴加甲醇(20mL)搅拌10min,反应液倒入200mL冰水混合物中,生成凝胶状悬浮物。硅藻土过滤,用乙酸乙酯(3×100mL)萃取三次,合并酯层,用水(3×100mL)和饱和食盐水(100mL)洗涤,无水硫酸钠干燥,过滤除去溶剂得白色固体。硅胶柱层析法梯度洗脱分离纯化(PE:EA=20:1,v/v)得到白色固体(3-(2,6-二氯苯基)-4-羟甲基-5-苯基异噁唑)9.1g,收率70%。
实施例1:化合物TM-1合成路线
试验步骤:
3-(3-溴苯基)环丁酮
在-15℃条件下,向N,N-二甲基甲酰胺(2.1g,24.6mmol)的1,2-二氯乙烷(40mL),溶液中,缓慢滴加三氟甲磺酸酐(11.6g,41.0mmol),在-15℃搅拌30分钟。然后加入3-溴苯乙烯(3.0g,16.4mmol)和2,4,6-三甲基吡啶(2.9g,24.6mmol),室温搅拌过夜。加水猝灭反应,室温搅拌过夜,加入二氯甲烷稀释分离有机相,分别用水和饱和食盐水(200ml)洗涤有机相,无水硫酸镁干燥,抽滤,减压浓缩,硅胶柱层析法梯度洗脱分离纯化(PE:EA=15:1,v/v)得到黄色固体3-(3-溴苯基)环丁酮1.3g,产率35%。
3-(3-氧代环丁基)苯甲酸甲酯
在室温,一氧化碳气球环境中,将三乙胺(2.2g,21.3mmol)加入3-(3-氧代环丁基)苯甲酸甲酯(1.6g,7.1mmol)和(1,1'-双(二苯基膦基)二茂铁)二氯化钯(520mg,0.7mmol)在甲醇(20mL)和N,N-二甲基甲酰胺(10mL)的混合溶剂中,加热到55℃反应18小时,减压蒸馏除去溶剂并溶于乙酸乙酯中,用水洗涤,有机层用无水硫酸镁干燥,抽滤,减压浓缩,硅胶柱层析法梯度洗脱分离纯化(PE:EA=3:1,v/v)得到黄色油状固体3-(3-氧代环丁基)苯甲酸甲酯1.1g,产率75%。
4-(5-溴吡嗪-2-亚甲氧基)-5-环丙基-3-(2,6-二氯苯基)异噁唑
在100ml的圆底烧瓶中,放入氢化钠(4.9g,121.6mmol),加入少量石油醚,洗涤氢化钠表面的煤油层,洗涤两次。加入四氢呋喃(30ml),反应瓶置于0℃冰浴下冷却,将2,5-二溴吡嗪(13.1g,55.3mmol)溶于四氢呋喃(10ml),搅拌下滴加到圆底烧瓶中。反应20min后,将1(5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲醇(15.7g,55.3mmol)溶于四氢呋喃(10ml)中,针管缓慢滴加到反应瓶中,升至室温反应12h。反应完毕,将反应液倒入100ml冰水混合物中,然后用乙酸乙酯(3×100ml)萃取,合并有机相后用水、饱和食盐水洗涤。无水MgSO4进行干燥。硅胶柱层析法梯度洗脱分离纯化(PE:EA=10:1,v/v)得到白色固体6(4-(5-溴吡嗪-2-亚甲氧基)-5-环丙基-3-(2,6-二氯苯基)异噁唑)20.2g,产率为83﹪。
3-(3-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)苯甲酸甲酯
100ml三颈烧瓶氮气保护,将6(20.2g,45.8mmol)溶于四氢呋喃(80ml)加入反应瓶,然后将温度降到-78℃,缓慢滴加正丁基锂(1.6M in hexane,30.0mL,48.0mmol),搅拌10min后,缓慢滴加溶于四氢呋喃(20ml)中的3-(3-氧代环丁基)苯甲酸甲酯2(9.0g,43.6mmol)溶液,-78℃反应2h后升至室温反应过夜。反应完毕后,用饱和氯化铵猝灭反应,用乙酸乙酯萃取,饱和食盐水(200ml)洗涤有机相,无水硫酸镁干燥,抽滤,减压蒸馏除去有机溶剂,硅胶柱层析法梯度洗脱分离纯化(PE:EA=15:1,v/v)得到黄色固体3-(3-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)苯甲酸甲酯5.6g,产率为19﹪。
3-(3-(5-(5-环丙基-3-(2,6-二氯苯基)异噁唑-4-亚甲氧基)-2-吡嗪)-1-羟基环丁烷)苯甲酸
将3-(3-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)苯甲酸甲酯(5.6g,10.1mmol)溶解于THF(10mL)和甲醇(10mL)混合溶剂中,35℃下加入LiOH·H2O(1.8g,42.6mmol)的水(5ml)溶液,搅拌过夜。减压蒸馏除去有机溶剂,用1N盐酸调节pH至5,加入乙酸乙酯萃取三次,用无水硫酸镁干燥,减压蒸馏除去溶剂,经高压制备液相色谱仪分离纯化(乙腈:水=3:4,v/v)得白色固体TM-1 3-(3-(5-(5-环丙基-3-(2,6-二氯苯基)异噁唑-4-亚甲氧基)-2-吡嗪)-1-羟基环丁烷)苯甲酸3.28g,收率57%。
图1所示、1H-NMR(400MHz,DMSO-D6):δ12.95(s,1H),8.22-8.21(m,1H),8.12-8.11(m,1H),7.95-7.94(m,1H),7.72(d,J=2Hz,1H),7.66-7.49(m,4H),7.48-7.37(m,1H),6.06(s,1H),5.24(s,2H),3.57-3.37(m,1H),2.94-2.89(m,2H),2.55-2.42(m,3H),1.21(d,J=24Hz,2H),1.15(d,J=16Hz,2H)
图2所示,SI-MS:m/z[M+H]+:Calcd.for C28H23Cl2N3O5:551.1,Found:552.2
实施例2:化合物TM-2合成路线
合成步骤:
3-(3-羟基氮杂环丁烷-1-基)苯甲酸甲酯3b的合成
向3-碘苯甲酸甲酯3a(5.0g,19.1mmol)在DMSO-D6(70mL)的溶液中加入3-氮杂环环丁烷-3-醇盐酸盐(2.5g.22.9mmol)、Cs2CO3(15.5g,47.7mmol)、CuI(726mg,3.8mmol)和L-脯氨酸(878mg,7.6mmol),然后将该混合物在氩气气氛下在90℃加热18小时。溶液用乙酸乙酯和水稀释,然后将有机层用盐水洗涤三次,减压浓缩,用硅胶柱层析色谱分离纯化(DCM/MeOH=10/1,v/v),得到白色固体产物3b(2.7g,68%)。
3-(3-氧代氮杂环丁烷-1-基)苯甲酸甲酯3的合成
将二甲亚砜(1.6g,20.3mmol)溶于二氯甲烷(30mL)中,在-78℃下,加入草酰氯(1.3g,10.1mmol),并在-78℃搅拌30分钟,然后加入3-(3-羟基氮杂环丁烷-1-基)苯甲酸甲酯(1.4g,6.8mmol)溶于二氯甲烷,在-78℃下缓慢滴加到反应液中,并控制时间在30分钟,然后在-78℃搅拌30分钟,随后加入三乙胺(4.1g,40.5mmol),在-78℃反应1小时,升至室温并在室温下反应2小时。反应液用水稀释,并用乙酸乙酯萃取,有机相用饱和食盐水洗涤,无水硫酸钠干燥,抽滤浓缩,用硅胶柱层析色谱分离纯化(PE/EA=2/1)得到白色固体产物3(0.9g,65%)。
3-(3-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基氮杂环丁烷-1-基)苯甲酸甲酯
100ml三颈烧瓶氮气保护,将6(1.9g,4.4mmol)溶于四氢呋喃(25ml)加入反应瓶,然后将温度降到-78℃,缓慢滴加正丁基锂(2.5M in hexane,2.6mL,6.6mmol),搅拌10min后,缓慢滴加溶于四氢呋喃(5ml)中的3-(3-氧代氮杂环丁烷-1-基)苯甲酸甲酯3(0.9g,4.4mmol)溶液,-78℃反应2h后升至室温反应过夜。反应完毕后,用饱和氯化铵猝灭反应,用乙酸乙酯萃取,饱和食盐水(200ml)洗涤有机相,无水硫酸镁干燥,抽滤,减压蒸馏除去有机溶剂,硅胶柱层析法梯度洗脱分离纯化(PE:EA=15:1,v/v)得到黄色固体7 3-(3-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)苯甲酸甲酯560mg,产率为22﹪
3-(3-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基氮杂环丁烷-1-基)苯甲酸
将3-(3-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)苯甲酸甲酯(270mg,0.5mmol)溶解于THF(3mL)和甲醇(3mL)混合溶剂中,35℃下加入LiOH·H2O(60mg,1.5mmol)的水(3ml)溶液,搅拌过夜。减压蒸馏除去有机溶剂,用1N盐酸调节pH至5,加入乙酸乙酯萃取三次,用无水硫酸镁干燥,减压蒸馏除去溶剂,经高压制备液相色谱仪分离纯化(乙腈:水=3:4,v/v)得白色固体3-(3-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基苯甲酸)40mg,收率15%。
图3所示、1H-NMR(400MHz,DMSO-D6):δ8.22-8.21(m,1H),8.08-8.08(m,1H),7.59-7.51(m,4H),7.27-7.25(m,2H),7.00(s,1H),6.67(s,1H),5.24(s,2H),4.21(d,J=16Hz,2H),3.98(d,J=16Hz,2H),2.51-2.50(m,1H),1.22-1.18(m,2H),1.15-1.12(m,2H)。
图4所示、ESI-MS:m/z[M+H]+:Calcd.for C27H22Cl2N4O5:552.1,Found:553.1(注,数值在图的右侧)。
实施例3:化合物TM-3合成路线
3-(3-溴苯基)-1-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)环丁醇
100mL三颈烧瓶氮气保护,将4-(5-溴吡嗪-2-亚甲氧基)-5-环丙基-3-(2,6-二氯苯基)异噁唑(1.14g,2.3mmol)溶于无水四氢呋喃(5mL)打入反应瓶,然后将乙醇与液氮加入500mL低温杜瓦瓶使温度降到-78℃,缓慢滴加正丁基锂(1.7ml,2.7mmol),搅拌10min后,缓慢滴加溶于四氢呋喃(10mL)中的3-(3-氧代环丁酮)苯甲酸甲酯(0.56g,2.5mmol)溶液,-78℃反应2h后升至室温反应过夜。反应完毕将反应液缓慢倒入冰水混合物中,用乙酸乙酯萃取,水(100mL)洗涤酯层,无水硫酸镁干燥,抽滤,减压蒸馏除去有机溶剂,硅胶柱层析法梯度洗脱分离纯化(PE:EA=10:1,v/v)得到白色固体3-(3-溴苯基)-(5-(5-环丙基-3-(2,6-二氯苯基)异恶唑-4-基)甲氧基)吡嗪-2-基)环丁烷-1-醇,567mg,产率为42﹪。
图5所示、1H-NMR(400MHz,CDCl3):δ8.30(1H,s),8.06(1H,d,J=4Hz),7.45(1H,s),7.42(1H,d,J=1.6Hz),7.40(1H,s),7.36-7.32(2H,m,J=16Hz),7.22-7.18(2H,m,J=16Hz),5.23(2H,s),3.35-3.26(1H,m),2.99-2.93(2H,m),2.63-2.57(2H,m),2.36-2.29(1H,m),1.33-1.29(2H,d,J=24Hz),1.21-1.16(2H,d,J=16Hz);
图6所示、13C-NMR(100MHz,DMSO-D6):173.0,159.6,158.4,150.9,147.1,130.0,129.8,129.3,128.0,127.9,125.3,122.6,110.3,71.0,56.8,44.5,29.8,8.5,7.8。
图7所示、ESI-MS:m/z[M+2+H]+:Calcd.forC27H22BrCl2N3O3:585.0222,Found:588.0300
实施例4:化合物TM-4合成路线
1-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)-3-(3-(甲基磺酰基)苯基)环丁醇
向3-(3-溴苯基)-1-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)环丁醇(500mg,0.85mmol)在DMSO-D6中的溶液中,加入甲烷亚磺酸钠(130mg,1.28mmol)、CuI(50.2mg,0.26mmol)、L-脯氨酸(97.9mg,0.85mmol)和二异丙基乙胺(DIEA)(109.9mg,0.85mmol)。将该混合物在95℃搅拌过夜,然后用水稀释并用EA萃取。有机相合并,用水洗涤并用Na2SO4干燥。减压浓缩至干经高压制备液相色谱仪分离纯化(乙腈:水=3:4,v/v)得白色固体1-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)-3-(3-(甲基磺酰基)苯基)环丁醇324mg,收率65%。
图8所示、1H-NMR(400MHz,CDCl3):δ8.15(s,1H),7.92(s,1H),7.72-7.65(m,2H),7.42-7.40(m,2H),7.28-7.12(m,2H),5.08(s,2H),3.33-3.29(m,1H),2.93-2.85(m,5H),2.51-2.46(m,2H),2.21-2.18(m,1H),1.15(d,J=16Hz,2H),1.05(d,J=16Hz,2H)
图9所示、ESI-MS:m/z[M+H]+:Calcd.for C28H25Cl2N3O5S:585.1,Found:586.3
实施例5:化合物TM-5合成路线
1-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)-3-(3-(苯硫基)苯基)环丁醇
在氩气保护下,向3-(3-溴苯基)-1-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)环丁醇(1.0g,1.7mmol)在甲苯中的溶液中加入DIEA(0.44g,3.41mmol)、苯甲硫醇(0.21g,1.7mmol)、Pd2(dba)3(0.34g,0.37mmol)和4,5-双二苯基膦-9,9-二甲基氧杂蒽(0.16g,0.27mmol)。然后将混合物在115℃搅拌4小时。冷却至室温,用水稀释并用EA萃取。有机相合并,用水洗涤并用Na2SO4干燥。减压浓缩至干经高压制备液相色谱仪分离纯化(乙腈:水=3:4,v/v)得白色固体1-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)-3-(3-(苯硫基)苯基)环丁醇367mg,收率35%。
图10所示、1H-NMR(400MHz,CDCl3):δ8.23(s,1H),8.01(s,1H),7.46-7.54(m,3H),7.23-7.33(m,8H),7.14(br d,J=7.6Hz,1H),5.28(s,2H),3.31-3.34(m,1H),4.85(H2O),4.58(HDO),3.30(CD3OD),2.92-3.02(m,2H),2.41-2.50(m,2H),1.23(s,1H),1.21(br d,J=2.0Hz,2H),1.19(br d,J=2.0Hz,2H)
图11所示、ESI-MS:m/z[M+H]+:Calcd.for C33H27Cl2N3O3S:615.1150,Found:616.1421。
实施例6:化合物TM-6的合成
4-(5-溴吡嗪-2-亚甲氧基)-5-异丙基-3-(2,6-二氯苯基)异噁唑的合成
在100mL的圆底烧瓶中,放入氢化钠(60%,0.83g,21mmol),加入少量石油醚,洗涤NaH表面的煤油层,洗涤两次。加入30mL四氢呋喃,反应瓶置于0℃冰浴下冷却。将2,5-二溴吡嗪(833mg,3.5mmol)溶于10mL四氢呋喃,搅拌下滴加到圆底烧瓶中。反应20min后,将3-(2,6-二氯苯基)-4-羟甲基-5-异丙基异噁唑(1g,3.5mmol)溶于10mL四氢呋喃中,针管缓慢滴加到反应瓶中。升至室温反应12h。反应完毕,将反应液倒入100mL冰水混合物中,然后用乙酸乙酯(3×100mL)萃取,合并有机相后用水、饱和食盐水洗涤。无水MgSO4进行干燥。硅胶柱层析法梯度洗脱分离纯化(PE:EA=10:1,v/v)得到白色固体4-(5-溴吡嗪-2-亚甲氧基)-5-异丙基-3-(2,6-二氯苯基)异噁唑0.7g,产率为53﹪。
3-(3-(5-((3-(2,6-二氯苯基)-5-异丙基异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)苯甲酸甲酯的合成
100mL三颈烧瓶氮气保护,将4-(5-溴吡嗪-2-亚甲氧基)-5-异丙基-3-(2,6-二氯苯基)异噁唑(1g,2.3mmol)溶于无水四氢呋喃(20mL)打入反应瓶,然后将乙醇与液氮加入500mL低温杜瓦瓶使温度降到-78℃,缓慢滴加正丁基锂(1.7ml,2.7mmol),搅拌10min后,缓慢滴加溶于四氢呋喃(10mL)中的3-(3-氧代环丁酮)苯甲酸甲酯(0.51g,2.5mmol)溶液,-78℃反应2h后升至室温反应过夜。反应完毕将反应液缓慢倒入冰水混合物中,用乙酸乙酯萃取,水(100mL)洗涤酯层,无水硫酸镁干燥,抽滤,减压蒸馏除去有机溶剂,硅胶柱层析法梯度洗脱分离纯化(PE:EA=10:1,v/v)得到白色固体3-(3-(5-((3-(2,6-二氯苯基)-5-异丙基异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)苯甲酸甲酯549mg,产率为42﹪。
3-(3-(5-(5-异丙基-3-(2,6-二氯苯基)异噁唑-4-亚甲氧基)-2-吡嗪)-1-羟基环丁烷)苯甲酸的合成
将3-(3-(5-((3-(2,6-二氯苯基)-5-异丙基异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)苯甲酸甲酯(319mg,0.6mmol,1eq)溶解于20mL THF中,35℃下LiOH·H2O(99mg,2.4mmol,4.2eq)的水(5mL)溶液,搅拌过夜。减压蒸馏除去有机溶剂,用1N盐酸调节pH至5,加入乙酸乙酯萃取三次,用无水硫酸镁干燥,减压蒸馏除去溶剂,使用高压制备液相色谱仪分离纯化,采用Waters XBridge C18柱(150nm*4.6nm*3.5um),流动相为乙腈和水,流速18mL/min,收集梯度为45%-75%的馏分,浓缩除掉大部分乙腈,用冻干机冻干得白色粉末状固体(3-(3-(5-(5-异丙基-3-(2,6-二氯苯基)异噁唑-4-亚甲氧基)-2-吡嗪)-1-羟基环丁烷)苯甲酸)126mg,收率38%。
图12所示1H-NMR(400MHz,DMSO-D6):δ12.97(s,1H),8.20(d,J=1.3Hz,1H),8.09(d,J=1.3Hz,1H),7.95(s,1H),7.79-7.77(d,J=7.7Hz,1H),7.63-7.61(m,2H),7.55-7.53(m,2H),7.44(t,J=7.7Hz,1H),6.09(s,1H),5.19(s,2H),3.61-3.54(m,1H),3.42-3.33(m,1H),2.90(td,J=8.9,2.5Hz,2H),2.47-2.42(m,2H),1.37(d,J=7.0Hz,6H);
图13所示、13C-NMR(100MHz,CDCl3):176.8,171.0,159.3,158.4,150.9,145.2,131.2,129.4,128.7,128.4,128.2,128.1,128.0,109.1,71.1,56.8,44.5,29.9,27.0,20.9,1.0;
图14所示、ESI-MS:m/z[M+H]+:Calcd.for C28H25Cl2N3O5:553.1171,Found:554.1211.
实施例7:化合物TM-7的合成
4-(5-溴吡嗪-2-亚甲氧基)-5-苯基-3-(2,6-二氯苯基)异噁唑的合成
在100mL的圆底烧瓶中,放入氢化钠(60%,0.83g,21mmol),加入少量石油醚,洗涤NaH表面的煤油层,洗涤两次。加入30mL四氢呋喃,反应瓶置于0℃冰浴下冷却。将2,5-二溴吡嗪(833mg,3.5mmol)溶于10mL四氢呋喃,搅拌下滴加到圆底烧瓶中。反应20min后,将3-(2,6-二氯苯基)-4-羟甲基-5-苯基异噁唑(1.12g,3.5mmol)溶于10mL四氢呋喃中,针管缓慢滴加到反应瓶中。升至室温反应12h。反应完毕,将反应液倒入100mL冰水混合物中,然后用乙酸乙酯(3×100mL)萃取,合并有机相后用水、饱和食盐水洗涤。无水MgSO4进行干燥。硅胶柱层析法梯度洗脱分离纯化(PE:EA=10:1,v/v)得到白色固体(4-(5-溴吡嗪-2-亚甲氧基)-5-苯基-3-(2,6-二氯苯基)异噁唑),752mg,产率为45﹪。
3-(3-(5-((3-(2,6-二氯苯基)-5-苯基异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)苯甲酸甲酯的合成
100mL三颈烧瓶氮气保护,将4-(5-溴吡嗪-2-亚甲氧基)-5-苯基-3-(2,6-二氯苯基)异噁唑(1g,2.1mmol)溶于无水四氢呋喃(20mL)打入反应瓶,然后将乙醇与液氮加入500mL低温杜瓦瓶使温度降到-78℃,滴加正丁基锂溶液(1.1N环己烷溶液,1.75ml,2.8mmol),搅拌10min后,缓慢滴加溶于四氢呋喃(10mL)中的3-(3-氧代环丁酮)苯甲酸甲酯(0.47g,2.3mmol)溶液,-78℃反应2h后升至室温反应过夜。反应完毕将反应液缓慢倒入冰水混合物中,用乙酸乙酯萃取,水(100mL)洗涤酯层,无水硫酸镁干燥,抽滤,减压蒸馏除去有机溶剂,硅胶柱层析法梯度洗脱分离纯化(PE:EA=10:1,v/v)得到白色固体3-(3-(5-((3-(2,6-二氯苯基)-5-苯基异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)苯甲酸甲酯329mg,产率为26﹪。
3-(3-(5-(5-苯基-3-(2,6-二氯苯基)异噁唑-4-亚甲氧基)-2-吡嗪)-1-羟基环丁烷)苯甲酸的合成
将3-(3-(5-((3-(2,6-二氯苯基)-5-苯基异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)苯甲酸甲酯(118mg,0.2mmol,1eq)溶解于20mL THF中,35℃下LiOH·H2O(35mg,0.8mmol,4.2eq)的水(5mL)溶液,搅拌过夜。减压蒸馏除去有机溶剂,用1N盐酸调节pH至5,加入乙酸乙酯萃取三次,用无水硫酸镁干燥,减压蒸馏除去溶剂,使用高压制备液相色谱仪分离纯化,采用Waters X Bridge C18柱(150nm*4.6nm*3.5um),流动相为乙腈和水,流速18mL/min,收集梯度为45%-75%的馏分,浓缩除掉大部分乙腈,用冻干机冻干得白色粉末状固体(3-(3-(5-(5-苯基-3-(2,6-二氯苯基)异噁唑-4-亚甲氧基)-2-吡嗪)-1-羟基环丁烷)苯甲酸)39mg,收率33%。
图15所示、1H-NMR(400MHz,DMSO-D6):δ12.97(s,1H),8.15(d,J=1.3Hz,1H),8.10(d,J=1.3Hz,1H),7.99-7.95(m,J=16Hz,3H),7.79-7.78(d,J=4Hz,1H),7.67-7.65(m,J=8Hz,5H),7.61-7.55(m,J=8Hz,2H),7.46-7.42(m,1H),6.08(s,1H),5.38(s,2H),5.39-3.33(m,1H),2.94-2.88(m,2H),2.47-2.42(m,2H);
图16所示,ESI-MS:m/z[M+H]+:Calcd.for C31H23Cl2N3O5:587.1015,Found:588.1062
实施例8:化合物TM-8的合成
3-甲基-5-乙烯基苯甲酸甲酯
100mL圆底烧瓶,加入3-溴苯甲酸甲酯(1.12g,5mmol),乙烯三氟硼酸钾(820mg,6.12mmol),PdCl2(17.5mg,0.1mmol),PPh3(80mg,0.3mmol)和Cs2CO3(5g,15mmol),然后在N2下加入THF(18mL)和H2O(2mL)。混合物在80℃下搅拌反应22h,冷却至室温后,用水洗涤、无水硫酸镁干燥、抽滤。减压蒸馏,用硅胶柱层析法梯度洗脱分离纯化(PE:EA=60:1,v/v)得到浅粉色油状液体(3-甲基-5-乙烯基苯甲酸甲酯)164mg,产率30%。
3-(2,2-二氯-3-氧环丁酮)-5-甲基苯甲酸甲酯
氮气保护下,将3-甲基-5-乙烯基苯甲酸甲酯(5.46g,31mmol,1eq)溶解于***(150mL)中。加入锌粉(6g,93mmol,3eq),超声30min后,滴加一种三氯乙酰氯(8.7mL,77.5mmol,2.5eq)的Et2O溶液(50mL),继续超声30分钟。混合物加热到35℃。持续超声2.5h,反应完成后冷却至室温,缓慢滴加水(50mL)淬灭。混合物倒入水中搅拌20min后,过滤,再用Et2O漂洗。有机层用水(250mL)、饱和碳酸氢钠(250mL)和饱和氯化钠(250mL)洗涤,用无水硫酸镁干燥,过滤后减压蒸馏除去溶剂得黄色油状粗品。硅胶柱层析法梯度洗脱分离纯化(PE:EA=50:1,v/v)得到黄色油状液体3-(2,2-二氯-3-氧环丁酮)-5-甲基苯甲酸甲酯3.56g,产率40%。
3-甲基-5-(3-氧环丁基)苯甲酸甲酯
混合3-(2,2-二氯-3-氧环丁酮)-5-甲基苯甲酸甲酯(2.79g,9.7mmol,1eq)与锌粉(2.54g,38.8mmol,4eq)溶于60mL乙酸中,室温下搅拌1h。然后在油浴80℃下回流3.5h,反应完毕后冷却至室温。用100mL水稀释溶剂乙酸,用***(3×40mL)萃取。合并有机相后依次用饱和碳酸钠溶液(3×40mL)、水(100mL)、饱和食盐水(100mL)洗涤。用一定量的无水MgSO4进行干燥。硅胶柱层析法梯度洗脱分离纯化(PE:EA=50:1,v/v)得到化合物(3-(3-氧代环丁酮)苯甲酸甲酯)1.38g,产率65%。
3-(3-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)-5-甲基苯甲酸甲酯的合成
100mL三颈烧瓶氮气保护,将4-(5-溴吡嗪-2-亚甲氧基)-5-环丙基-3-(2,6-二氯苯基)异噁唑(1.02g,2.3mmol)溶于无水四氢呋喃(20mL)打入反应瓶,然后将乙醇与液氮加入500mL低温杜瓦瓶使温度降到-78℃,缓慢滴加正丁基锂(1.7ml,2.7mmol),搅拌10min后,缓慢滴加溶于四氢呋喃(10mL)中的3-甲基-5-(3-氧环丁基)苯甲酸甲酯(0.55g,2.5mmol)溶液,-78℃反应2h后升至室温反应过夜。反应完毕将反应液缓慢倒入冰水混合物中,用乙酸乙酯萃取,水(100mL)洗涤酯层,无水硫酸镁干燥,抽滤,减压蒸馏除去有机溶剂,硅胶柱层析法梯度洗脱分离纯化(PE:EA=10:1,v/v)得到白色固体3-(3-(5-((5-环丙基-3-(2,6-二氯苯基)异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)-5-甲基苯甲酸甲酯,产率为47﹪。
3-(3-(5-((5-环丙基-3-(2,6-二氯苯基)异恶唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)-5-甲基苯甲酸
将3-(3-(5-((3-(2,6-二氯苯基)-5-环丙基异恶唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)苯甲酸甲酯(116mg,0.2mmol,1eq)溶解于20mL THF中,35℃下LiOH·H2O(35mg,0.8mmol,4.2eq)的水(5mL)溶液,搅拌过夜。减压蒸馏除去有机溶剂,用1N盐酸调节pH至5,加入乙酸乙酯萃取三次,用无水硫酸镁干燥,减压蒸馏除去溶剂,使用高压制备液相色谱仪分离纯化,采用Waters XBridge C18柱(150nm*4.6nm*3.5um),流动相为乙腈和水,流速18mL/min,收集梯度为45%-75%的馏分,浓缩除掉大部分乙腈,用冻干机冻干得白色粉末状固体3-(3-(5-((5-环丙基-3-(2,6-二氯苯基)异恶唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)-5-甲基苯甲酸,37mg,收率33%。
图17所示、1H-NMR(400MHz,DMSO-D6):δ12.90(1H,s),8.21(1H,d,J=1.2Hz),8.11(1H,d,J=1.2Hz),7.74(1H,s),7.62-7.60(3H,m),7.56-7.52(1H,m),7.37(1H,s),6.06(1H,s),5.24(2H,s),3.38-3.29(1H,m),2.92-2.87(2H,m),2.59-2.53(1H,m),2.46-2.41(2H,m),2.35(3H,s),1.24-1.18(2H,m),1.16-1.14(2H,m);
图18所示、13C-NMR(400MHz,DMSO-D6):δ176.9,168.9,168.0,159.3,157.9,153.5,146.2,135.1,133.4,133.0,128.9,127.6,125.1,109.9,70.9,56.3,45.5,29.8,26.5,21.3,21.1;
图19所示、ESI-MS:m/z[M+H]+:Calcd.for C29H25Cl2N3O5:565.1171,Found:566.1234
实施例9:化合物TM-9的合成
3-(3-(5-((3-(2,6-二氯苯基)-5-异丙基异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)-5-甲基苯甲酸甲酯的合成
100mL三颈烧瓶氮气保护,将4-(5-溴吡嗪-2-亚甲氧基)-5-异丙基-3-(2,6-二氯苯基)异噁唑(1.02g,2.3mmol)溶于无水四氢呋喃(20mL)打入反应瓶,然后将乙醇与液氮加入500mL低温杜瓦瓶使温度降到-78℃,缓慢滴加正丁基锂(1.7ml,2.7mmol),搅拌10min后,缓慢滴加溶于四氢呋喃(10mL)中的3-甲基-5-(3-氧环丁基)苯甲酸甲酯(0.55g,2.5mmol)溶液,-78℃反应2h后升至室温反应过夜。反应完毕将反应液缓慢倒入冰水混合物中,用乙酸乙酯萃取,水(100mL)洗涤酯层,无水硫酸镁干燥,抽滤,减压蒸馏除去有机溶剂,硅胶柱层析法梯度洗脱分离纯化(PE:EA=10:1,v/v,PE是石油醚,EA是乙酸乙酯)得到白色固体(3-(3-(5-((3-(2,6-二氯苯基)-5-异丙基异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)-5-甲基苯甲酸甲酯)643mg,产率为48﹪。
3-(3-(5-((3-(2,6-二氯苯基)-5-异丙基异恶唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)-5-甲基苯甲酸的合成
将3-(3-(5-((3-(2,6-二氯苯基)-5-异丙基异恶唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)-5-甲基苯甲酸甲酯(117mg,0.2mmol,1eq)溶解于20mL THF中,35℃下LiOH·H2O(35mg,0.8mmol,4.2eq)的水(5mL)溶液,搅拌过夜。减压蒸馏除去有机溶剂,用1N盐酸调节pH至5,加入乙酸乙酯萃取三次,用无水硫酸镁干燥,减压蒸馏除去溶剂,使用高压制备液相色谱仪分离纯化,采用Waters X Bridge C18柱(150nm*4.6nm*3.5um),流动相为乙腈和水,流速18mL/min,收集梯度为45%-75%的馏分,浓缩除掉大部分乙腈,用冻干机冻干得白色粉末状固体(3-(3-(5-((3-(2,6-二氯苯基)-5-异丙基异恶唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)-5-甲基苯甲酸),46mg,收率40%。
图20所示、1H-NMR(400MHz,DMSO-D6):δ12.88(1H,brs),8.20(1H,d,J=1.2Hz),8.08(1H,d,J=1.2Hz),7.73(1H,s),7.63-7.60(3H,m),7.56-7.52(1H,s),7.37(1H,s),6.06(1H,brs),5.19(2H,s),3.61-3.54(1H,m),2.91-2.85(2H,m),2.45-2.40(2H,m),2.35(3H,s),1.38-1.36(6H,d,J=8Hz);
图21所示、13C-NMR(100MHz,DMSO-D6):176.9,168.0,159.3,157.9,153.5,146.2,135.1,133.4,133.0,128.9,127.6,125.1,109.9,70.9,56.3,45.5,29.8,26.5,21.3,21.1;
图22所示、ESI-MS:m/z[M+H]+:Calcd.for C29H27Cl2N3O5:567.1328,Found:568.1412
实施例10:化合物TM-10的合成
3-(3-(5-((3-(2,6-二氯苯基)-5-苯基异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)-5-甲基苯甲酸甲酯的合成
100mL三颈烧瓶氮气保护,将4-(5-溴吡嗪-2-亚甲氧基)-5-苯基-3-(2,6-二氯苯基)异噁唑(1.03g,2.3mmol)溶于无水四氢呋喃(20mL)打入反应瓶,然后将乙醇与液氮加入500mL低温杜瓦瓶使温度降到-78℃,缓慢滴加正丁基锂(1.7ml,2.7mmol),搅拌10min后,缓慢滴加溶于四氢呋喃(10mL)中的3-甲基-5-(3-氧环丁基)苯甲酸甲酯(0.55g,2.5mmol)溶液,-78℃反应2h后升至室温反应过夜。反应完毕将反应液缓慢倒入冰水混合物中,用乙酸乙酯萃取,水(100mL)洗涤酯层,无水硫酸镁干燥,抽滤,减压蒸馏除去有机溶剂,硅胶柱层析法梯度洗脱分离纯化(PE:EA=10:1,v/v)得到白色固体(3-(3-(5-((3-(2,6-二氯苯基)-5-苯基异噁唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)-5-甲基苯甲酸甲酯)496mg,产率为35﹪。
3-(3-(5-((3-(2,6-二氯苯基)-5-苯基异恶唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)-5-甲基苯甲酸的合成
将3-(3-(5-((3-(2,6-二氯苯基)-5-苯基异恶唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)-5-甲基苯甲酸甲酯(123mg,0.2mmol,1eq)溶解于20mL THF中,35℃下LiOH·H2O(35mg,0.8mmol,4.2eq)的水(5mL)溶液,搅拌过夜。减压蒸馏除去有机溶剂,用1N盐酸调节pH至5,加入乙酸乙酯萃取三次,用无水硫酸镁干燥,减压蒸馏除去溶剂,使用高压制备液相色谱仪分离纯化,采用Waters XBridge C18柱(150nm*4.6nm*3.5um),流动相为乙腈和水,流速18mL/min,收集梯度为45%-75%的馏分,浓缩除掉大部分乙腈,用冻干机冻干得白色粉末状固体(3-(3-(5-((3-(2,6-二氯苯基)-5-苯基异恶唑-4-基)甲氧基)吡嗪-2-基)-3-羟基环丁基)-5-甲基苯甲酸),37mg,收率31%。
图23所示、1H-NMR(400MHz,DMSO-D6):δ12.89(1H,s),8.14(1H,d,J=1.6Hz),8.09(1H,d,J=1.6Hz),7.99-7.96(3H,m),7.73(1H,s),7.67-7.65(5H,m),7.61-7.57(2H,m),7.37(1H,s),6.06(1H,s),5.38(2H,s),3.33-3.28(1H,m),2.91-2.86(2H,m),2.45-2.40(2H,m),2.35(3H,s);
图24所示、13C-NMR(100MHz,DMSO-D6):168.4,168.0,160.4,157.8,153.7,146.2,135.2,133.3,131.6,130.0,129.0,127.7,127.2,125.1,111.5,70.9,57.0,45.5,29.8,21.3;
图25所示、ESI-MS:m/z[M+H]+:Calcd.for C32H25Cl2N3O5:601.1171,Found:602.1249。
Claims (10)
2.如权利要求1所述的化合物,其特征在于,
其中,
R1选自-Br;
R2选自C1~C3的烃基、环烃基;
R3选自-CH3。
5.一种药物组合物,其特征在于,以权利要求1-4任一项所述的化合物或其药学上可接受的盐作为活性成分。
6.如权利要求5所述的药物组合物,根据需要,还可含有药学上可接受的载体。
8.权利要求1~4任一所述的化合物在制备治疗非酒精性脂肪肝的药物中的用途。
9.如权利要求8所述的用途,其中所述非酒精性脂肪肝,为非酒精性脂肪肝炎。
10.如权利要求5所述的药物组合物在制备治疗非酒精性脂肪肝的药物中的用途,优选非酒精性脂肪肝炎。
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CN116283810A (zh) * | 2023-03-28 | 2023-06-23 | 上海麦克林生化科技股份有限公司 | 一种异恶唑类化合物的制备方法 |
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