CN101528706A - 吡唑化合物 - Google Patents
吡唑化合物 Download PDFInfo
- Publication number
- CN101528706A CN101528706A CNA200780036890XA CN200780036890A CN101528706A CN 101528706 A CN101528706 A CN 101528706A CN A200780036890X A CNA200780036890X A CN A200780036890XA CN 200780036890 A CN200780036890 A CN 200780036890A CN 101528706 A CN101528706 A CN 101528706A
- Authority
- CN
- China
- Prior art keywords
- radical
- aryl
- heterocycloalkyl
- compound
- heteroaryl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 150000003217 pyrazoles Chemical class 0.000 title abstract description 18
- 150000001875 compounds Chemical class 0.000 claims abstract description 36
- 102000018208 Cannabinoid Receptor Human genes 0.000 claims abstract description 10
- 108050007331 Cannabinoid receptor Proteins 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 65
- 125000003118 aryl group Chemical group 0.000 claims description 37
- 125000001072 heteroaryl group Chemical group 0.000 claims description 26
- 229910052739 hydrogen Inorganic materials 0.000 claims description 18
- 239000001257 hydrogen Substances 0.000 claims description 18
- 125000004201 2,4-dichlorophenyl group Chemical group [H]C1=C([H])C(*)=C(Cl)C([H])=C1Cl 0.000 claims description 16
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 15
- 229910052736 halogen Inorganic materials 0.000 claims description 14
- 150000002367 halogens Chemical class 0.000 claims description 14
- 208000035475 disorder Diseases 0.000 claims description 8
- 125000005865 C2-C10alkynyl group Chemical group 0.000 claims description 7
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 201000010099 disease Diseases 0.000 claims description 7
- 206010028980 Neoplasm Diseases 0.000 claims description 5
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- 208000019425 cirrhosis of liver Diseases 0.000 claims description 4
- 201000001320 Atherosclerosis Diseases 0.000 claims description 3
- 208000001145 Metabolic Syndrome Diseases 0.000 claims description 3
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- 201000000690 abdominal obesity-metabolic syndrome Diseases 0.000 claims description 3
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- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 6
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- 102000030782 GTP binding Human genes 0.000 description 5
- 108091000058 GTP-Binding Proteins 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 125000000753 cycloalkyl group Chemical group 0.000 description 5
- 150000002430 hydrocarbons Chemical group 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- HCOVEUUIZWEZBK-UHFFFAOYSA-N n-(2,2-diethoxyethyl)formamide Chemical compound CCOC(OCC)CNC=O HCOVEUUIZWEZBK-UHFFFAOYSA-N 0.000 description 5
- 239000002287 radioligand Substances 0.000 description 5
- 238000001525 receptor binding assay Methods 0.000 description 5
- 102000005962 receptors Human genes 0.000 description 5
- 108020003175 receptors Proteins 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- LNWWQYYLZVZXKS-UHFFFAOYSA-N 1-pyrrolidin-1-ylethanone Chemical compound CC(=O)N1CCCC1 LNWWQYYLZVZXKS-UHFFFAOYSA-N 0.000 description 4
- MFPZQZZWAMAHOY-UHFFFAOYSA-N 2-Propanoylthiophene Chemical compound CCC(=O)C1=CC=CS1 MFPZQZZWAMAHOY-UHFFFAOYSA-N 0.000 description 4
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 4
- 102100036214 Cannabinoid receptor 2 Human genes 0.000 description 4
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- 102000003688 G-Protein-Coupled Receptors Human genes 0.000 description 4
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- UHBGYFCCKRAEHA-UHFFFAOYSA-N P-toluamide Chemical compound CC1=CC=C(C(N)=O)C=C1 UHBGYFCCKRAEHA-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
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Abstract
本发明涉及如在说明书中所示的吡唑化合物,这些化合物可用于治疗大麻素受体相关疾病。
Description
技术领域
本发明是涉及一种吡唑化合物,尤指一种适用于制备治疗大麻素受体相关疾病的药物的吡唑化合物。
背景技术
由大麻提炼出的大麻素已于几世纪以来被用作治疗药物的一种。比如,被用来作止痛、肌肉放松、刺激食欲及抗惊厥用。近来的研究更指出其具有治疗癌症、缓和慢性发炎疾病,如风湿病及多发性硬化症的功效。
大麻素的作用是受至少两种大麻素受体CB1及CB2受体的介导,此两者都属G蛋白偶联受体(GPCR)的超家族。CB1受体主要表现于脑部以调控抑制递质释放,而CB2受体主要表现于免疫细胞以调控免疫反应。相关资料见Matsuda etal.,Nature(1990)346:561及Munro et al.,Nature(1993)365:61的期刊。
相较于其它GPCRs,CB1受体具有高量表现的特征。在中枢神经系统中,其被高量表现于脑皮层、海马体、基底核、及小脑中,但于下视丘及脊随中却呈现低量表现。如见:Howlett et al.,Pharmacol Rev(2002)54:161。其功能可影响到许多神经学及心理学现象,如:情绪、食欲、呕吐控制、记忆、空间协调、肌肉张力、及痛觉缺失。如见Goutopoulos et al.,Pharmacol Ther(2002)95:103。除了中枢神经系统,其也表现于许多周边器官,如:肠、心脏、肺脏、子宫、卵巢、睪丸及扁桃腺。如见:Galiègue et al.,Eur J Biochem(1995)232:54。
CB2受体其44%与CB1受体相同,而其中有68%是于跨膜区为相同。相关资料见Munro et al.,Nature(1993)365:61。相较于CB1受体,CB2受体的高量表现较被限制于脾脏及扁桃腺,而于肺脏、子宫、胰脏、骨髓、及胸腺中则呈低量表现。在免疫细胞中,B细胞所表现的CB2受体为最高量,其次依序为自然杀手细胞(natural killer cells)、单核球(monocytes)、多形核嗜中性球(polymorphonuclear neutrophil)、及T淋巴球。相关资料请见Galiègue et al.,Eur JBiochem(1995)232:54。CB2受体活化已被证实对于与神经系统退变性疾病(如阿兹海默症)相关的炎症具有止痛效果,且也扮演维持骨质密度及改善动脉粥样硬化的角色。相关资料请见Malan et al.,Pain(2001)93:239;Benito et al.,JNeurosci(2003)23:11136;Ibrahim et al.,Proc Natl Acad Sci USA(2003)100:10529;Idris et al.,Nat Med(2005)11:774;以及Steffens et al.,Nature(2005)434:782。
发明内容
本发明是以发现某些吡唑(pyrazole)化合物具有治疗大麻素受体相关疾病的功效为基础。
本发明的一态样中,其特征是如下式(I)的吡唑化合物:
式中,X为C(RaRb)或N(Ra),其中每一Ra及Rb各自独立为氢、C1-C10烷基、C3-C20环烷基、C1-C20杂环烷基、芳基、或杂芳基;R2为氢、卤素、C1-C10烷基、C2-C10烯基、C2-C10炔基、C3-C20环烷基、C3-C20环烯基、C1-C20杂环烷基、C1-C20杂环烯基、芳基、杂芳基、或NRcRd,其每一Rc及Rd各自独立为氢、C1-C10烷基、C3-C20环烷基、C1-C20杂环烷基、芳基、或杂芳基;且每一R1、R3、及R4各自独立为氢、卤素、C1-C10烷基、C2-C10烯基、C2-C10炔基、C3-C20环烷基、C3-C20环烯基、C1-C20杂环烷基、C1-C20杂环烯基、芳基、或杂芳基。
依据上述式(I),上述的吡唑化合物的一次群组为X可为CH2或NH;R1可为经卤素取代的芳基(如:2,4-二氯苯基);R4可为芳基或杂芳基;R2可为C1-C10烷基、C3-C20环烷基、C1-C20杂环烷基、芳基或NRcRd,其每一Rc及Rd各自独立为氢、C1-C10烷基、C3-C20环烷基、C1-C20杂环烷基、芳基或杂芳基;且R3可为氢、卤素或C1-C10烷基。
「烷基」一词是指饱和直链或支链碳氢基团,如:-CH3或-CH(CH3)2。「烯基」一词是指包含至少一双键的直链或支链碳氢基团,如:-CH=CH-CH3。「炔基」一词是指包含至少一三键的直链或支链碳氢基团,如:-C≡C-CH3。「环烷基」一词是指饱和环状碳氢基团,如:环己基。「环烯基」一词是指包含至少一双键的非芳香性环状碳氢基团,如:环己烯基。「杂环烷基」一词是指具有至少一环杂原子(例如,氮、氧或硫)的饱和环状基团,如:4-四氢吡喃基(4-tetrahydropyranyl)。「杂环烯基」一词是指具有至少一环杂原子(例如,氮、氧或硫)及至少一环状双键的非芳香性环状基团,如:吡喃基(pyranyl)。「芳基」一词是指具有一或多个芳香环的碳氢基团。芳基基团范例包括苯基(phenyl,Ph)、亚苯基(phenylene)、萘基(naphthyl)、亚萘基(naphthylene)、芘基(pyrenyl)、蒽基(anthryl)、及菲基(phenanthryl)。「杂芳基」一词是指具有一或多个芳香环的碳氢基团,且该芳香环包含至少一杂原子(例如,氮、氧或硫)。杂芳基基团范例包括呋喃基(furyl)、亚呋喃基(furylene)、茀基(fluorenyl)、吡咯基(pyrrolyl)、噻吩基(thienyl)、恶唑基(oxazolyl)、咪唑基(imidazolyl)、噻唑基(thiazolyl)、吡啶基(pyridyl)、嘧啶基(pyrimidinyl)、喹唑啉基(quinazolinyl)、喹啉基(quinolyl)、异喹啉基(isoquinolyl)及吲哚基(indolyl)。
除非有特别指出,否则在此所述的烷基、烯基、炔基、环烷基、环烯基、杂环烷基、杂环烯基、芳基、以及杂芳基可包括经取代及未经取代的基团。可能取代于环烷基、环烯基、杂环烷基、杂环烯基、芳基、以及杂芳基的取代基包含但不受限于C1-C10烷基、C2-C10烯基、C2-C10炔基、C3-C20环烷基、C3-C20环烯基、C1-C20杂环烷基、C1-C20杂环烯基、C1-C10烷氧基、芳基、芳氧基、杂芳基、杂芳氧基、胺基、C1-C10烷胺基、C1-C20二烷胺基、芳胺基、二芳胺基、C1-C10烷基磺胺(C1-C10alkylsulfonamino)、芳基磺胺(arylsulfonamino)、C1-C10烷基亚胺(C1-C10alkylimino)、芳基亚胺(arylimino)、C1-C10烷基磺亚胺(C1-C10alkylsulfonimino)、芳基磺亚胺(arylsulfonimino)、羟基、卤素、硫代基(thio)、C1-C10烷硫基、芳硫基、C1-C10烷硫酰基(alkylsulfonyl)、芳硫酰基(aryltsulfonyl)、酰基胺基(acylamino)、胺基酰基(aminoacyl)、胺基硫酰基(aminothioacyl)、脒基(amidino)、胍基(guanidine)、脲基(ureido)、腈基、硝基、亚硝基、迭氮基(azido)、酰基、硫酰基、酰氧基(acyloxy)、羧基、及羧酸酯。另一方面,可能取代于烷基、烯基、或炔基的取代基包含除C1-C10烷基外的上述所有取代基。环烷基、环烯基、杂环烷基、杂环烯基、芳基、及杂芳基也可互相稠合。
在另一态样中,本发明的特征在于一种治疗大麻素受体相关疾病的方法。此方法包括将一有效剂量的上述式(I)的一种或多种吡唑化合物,给予一所需的试体。其中大麻素受体相关疾病为肝脏纤维化、掉发症、肥胖症、新陈代谢症候群(例如X症候群)、高血脂症、二型糖尿病、动脉粥状硬化症、物质成瘾疾(例如酒瘾及尼古丁瘾)、忧郁症、动机缺乏症候群、学习或记忆官能障碍、痛觉缺失、失血性休克、局部缺血、肝硬化、神经痛、止吐、高眼压、支气管舒张、骨质疏松、癌症(例如前列腺癌、肺癌、乳癌、头颈部癌)、神经退化性疾病(例如老年痴呆症或帕金森氏症)或发炎性疾病。
本文中,「治疗」一词是指将一种或多种吡唑化合物给予一染有上述疾病、其疾病症状、或为该疾病的易染病体质的试体,以达成治疗效果,例如:治愈、缓和、改变、影响、改善、或预防上述疾病、其症状、或其易染病体质。
此外,本发明是关于一种医药组合物,其包括有效剂量的至少一种上述吡唑化合物及一医药可接受的载体。
上述的吡唑化合物包含化合物本身、及其可应用的盐类、前驱物、及溶剂化物。盐类,例如,可在阴离子与吡唑化合物上的正电基团(如胺基)间形成。适合的阴离子包括:氯离子、溴离子、碘离子、硫酸根、硝酸根、磷酸根离子、柠檬酸根、甲烷磺酸根(methanesulfonate)、三氟醋酸根(trifluoroacetate)、醋酸根、苹果酸根(malate)、甲苯磺酸根(tosylate)、酒石酸根、延胡索酸根(fumurate)、谷胺酸根(glutamate)、葡糖醛酸根(glucuronate)、乳酸根、戊二酸根、及马来酸根。同样地,盐类也可在阳离子与吡唑化合物上的负电基团(如羧基)间形成。适合的阳离子包括:钠离子、钾离子、镁离子、钙离子、以及铵阳离子(如,四甲基铵离子)。吡唑化合物也包括含有四级氮原子的盐类。前药举例包括酯类或其它医药可接受衍生物,其于给药予一试体后,可提供如上述的活性吡唑化合物。溶剂化物意指形成于一活性吡唑化合物与一医药可接受的溶剂间的复合物。医药可接受的溶剂举例包括水、乙醇、异丙醇、乙酸乙酯、醋酸、及乙醇胺。
本发明范畴也包括一种用于治疗上述疾病的组合物,其包括一或多种上述吡唑化合物;以及使用该类组合物,以制得前述治疗用的药剂。
本发明的诸多实施例细节将于下公开。本发明的其它特征、目的及优点将由各说明与专利申请范围中阐明。
具体实施方式
上述的吡唑化合物可以经由熟知技艺的合成方式制备之,如:类似于美国临时专利申请号60/819,147(U.S.Provisional Application Serial No.60/819,147)所述的方法。合成的吡唑化合物可以合适方法作纯化,例如:管柱层析法、高压液态层析法、或再结晶法。
在此所述的吡唑化合物可包含一非芳香性双键及一或多个非对称中心。因此,其可为外消旋体和外消旋混合物(racemates;racemic mixtures)、单一对映体、单个非对映体、非对映体混合物、以及顺式(cis-)或反式(trans-)异构物。所有异构物都被考虑于其内。
同时,包含至少一种有效剂量的上述吡唑化合物及一医药可接受载体的医药组合物也于本发明的范畴中。此外,本发明涵盖给予一种或多种有效剂量的吡唑化合物于感染前述发明内容所述疾病的试体的方法。「有效剂量」是指可对给药试体产生治疗效果的活性吡唑化合物的剂量。如熟习此项技艺者所知,有效剂量会依治疗的疾病种类、给药路径、所用的赋形剂、及合并使用其它治疗的可能而改变。
为实行本发明所述的方法,包含一种或数种上述吡唑化合物的组合物可经由静脉、口服、经鼻、经直肠、局部、或舌下等方式给药。「静脉给药」在此是指皮下、腹腔、静脉注射、肌肉注射、关节腔内注射、主动脉注射、关节液内注射、胸腔注射、脊髓内注射、疾病部位内注射、颅内注射、或其它适合的给药技术。
无菌可注射的组合物可为一溶液或是悬浮于无毒的静脉注射稀释液或溶剂中,此类溶剂如1,3-丁二醇。可使用的可接受载体及溶剂可为甘露醇(mannitol)、水、林格氏溶液(Ringer’s solution)或等渗氯化钠溶液。除此之外,非挥发油是习用的溶剂或是悬浮介质(例如:合成单甘油酯或双甘油酯)。脂肪酸,如油酸(Oleic Acid)与其甘油酯衍生物也可用于注射剂的制备,为天然医药可接受的用油,如橄榄油或蓖麻油等,特别是其多氧乙基化的型态。这些油酯溶液或悬浮液可包含长链醇类稀释液或分散剂、羧甲基纤维素、或类似的分散剂。其它一般使用的表面活性剂,如Tween或是Spans、或其它相似乳化剂、或一般医药制造业所使用于医药可接受的固态、液态或其它可用于剂型开发目的的剂量型式的生物可利用增强剂。
用于口服给药的组合物可为任何一种口服可接受的剂型,型式包括胶囊、锭片、乳化剂与液状悬浮液、分散剂与溶剂。以锭片为例,一般所使用的载体为乳糖或是玉米淀粉。润滑剂(如硬脂酸镁)也常被添入其中。以口服胶囊给药型式而言,有效的稀释液包括乳糖与干燥玉米淀粉。当以液状悬浮液或乳化剂经口给药时,活性物质可悬浮或是溶解于结合乳化剂或悬浮剂的油状界面中。如果需要,可添加适度的甜味剂,风味剂或是色素。
鼻用气化喷雾剂或吸入剂组合物可根据已知医药剂型技术进行制备。例如,此组合物可制备于生理食盐水中,应用苯甲醇(benzyl alcohol)或其它适合的防腐剂、增强生物可利用性的促吸收剂、碳氟化合物、及/或其它技艺中已知的溶解剂或分散剂。
包含一种或多种活性吡唑化合物的组合物亦可以栓剂方式进行直肠给药。
医药组合物的载体必须为「可接受性」,即其必须与组合物的活性主成份兼容(更佳的是,具有稳定活性主成份的功能),并且不能对被治疗的试体造成伤害。一种或多种溶解剂可作为传送活性吡唑化合物的医药赋形剂。其它载体举例包括胶质氧化硅、硬脂酸镁、纤维素、月桂硫酸钠与D&C Yellow#10。
前述的吡唑化合物可初步针对其治疗前述疾病的功效经由体外分析进行筛选,并由动物实验与临床试验获得证实。其它方法也可从习知的一般方式得到。
下列特定具体实施例仅解释为说明性,无论以任何方式都不限制本公开的其余者。对本发明中配方的形式与细节的省略、修饰、减损、与改变,在不背离本发明的精神与范畴下,均可由熟悉本项技艺者加以进行。将本文所引述的所有发表文献全部并入本文以供参考。
以下为本发明具代表性的化合物,在此将其区分为四类,
第1类:
第2类:
第3类:
第4类:
化学合成
化合物7至16的合成方法如下流程图1所示,其中以化合物7作为范例。化合物17至32的合成方法如下流程图2所示,其中以化合物17作为范例。
流程图1
流程图2
中间体1a-1d或者市售可得或者通过已知的方法制得。下面1.1-1.14中描述了中间体2a-2d、3a-3d、4a、4b和5a-5d的合成。下面1.15-1.24中描述了化合物7-16的合成。下面2.1-2.16中描述了化合物17-32的合成。
1.1乙基2,4-二氧-4-(硒吩-2-基-丁酸酯)的锂盐(Lithium salt of ethyl2,4-dioxo-4-(selenoehen-2-yl-butanoate))(2a)
于-78℃下,将溶于二乙醚(15mL)的1-(硒吩-2-基)乙酮1a(1-(selenophene-2-yl)ethanone,3.2g,18.49mmol)溶液加至溶于二乙醚(40mL)的双(三甲基甲硅烷基)胺基锂(lithium bis(trimethylsilyl)amide,20.3mL,20.35mmol)磁搅拌溶液中。于相同温度下搅拌45分钟后,加入草酸二乙酯(diethyloxalate,3.0mL,22.19mmol)。将反应混合物回复至室温,再加以搅拌16小时。接着将沉淀物过滤出来,并以二乙醚洗涤之,于真空状态下干燥获得锂盐2a(3.5g,68%)。
1.2乙基3-甲基-2,4-二氧-4-(5-氯噻吩-2-基-丁酸酯)的锂盐(Lithium salt ofethyl 3-methyl-2,4-dioxo-4-(5-chlorothiophen-2-yl-butanoate))(2b)
化合物2b为由1-(噻吩-2-基)丙-1-酮(1-(thiophen-2-yl)propan-1-one,1b,3.0g,21.39mmol)与草酸二乙酯(diethyl oxalate,3.5mL,25.66mmol)通过制程1.1所述的步骤合成而得(3.2g,62%)。
1.3乙基2,4-二氧-3-甲基-4-(4-氯苯基-丁酮)的锂盐(Lithium salt of ethyl2,4-dioxo-3-methyl-4-(4-ehlorophenyl-butanonte))(2c)
化合物2c为由1-(4-氯苯基)丙-1-酮(1-(4-chlorophenyl)propan-1-one,1c,12.4g,73.80mmol)与草酸二乙酯(12mL,89.16mmol)通过制程1.1所述的步骤合成而得(13.2g,产率65%)。
1.42,4-二氧-3-甲基-4-噻吩-2-基-丁酮的锂盐(Lithium salt of ethyl2,4-dioxo-3-methyl-4-thiophen-2-yl-butanonate)(2d)
化合物2d为由1-(噻吩-2-基)丙-1-酮(1-(thiophen-2-yl)propan-1-one,1d,2.6g,18.49mmol)与草酸二乙酯(3.0mL,22.19mmol)通过制程1.1所述的步骤合成而得(2.8g,产率65%)。
1.51-(2,4-二氯苯基)-5-硒吩-2-基-1H-吡唑-3-羧酸乙酯(1-(2,4-dichlorophenyl)-5-selenophene-2-yl-1H-pyrazole-3-carboxylic acid,ethyl ester)(3a)
将锂盐2a(3.5g,12.56mmol)溶于(40mL)乙醇中,并作磁搅拌,于室温下,一次加入2,4-二氯苯基盐酸肼(2.9g,13.82mmol,2,4-dichlorophenylhydrazinehydrochloride)。并于室温中搅拌20小时。将沉淀物过滤,并以乙醇及二乙醚冲洗,接着真空干燥得到一淡黄色固体(4.0g,74%)。将此固体溶于醋酸(30mL),并回流加热24小时。接着,将混合物倒入冰水中,并以乙酸乙酯萃取。将萃取物依序经由水、饱和碳酸氢钠水溶液、以及食盐水洗涤,以无水硫酸钠干燥,再经过滤并将溶剂挥发。接着以正己烷/乙酸乙酯(9∶1)进行硅胶管柱快速层析的纯化,得到一白色固体的酯3a(3.0g,78%)。
1.65-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-羧酸乙酯(5-(5-Chloro-thiophen-2-yl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazole-3-carboxylic acid ethyl ester)(3b)
化合物3b为将锂盐2b(3.2g,12.94mmol)与2,4-二氯苯基盐酸肼(3.0g,14.23mmol)通过制程1.5所述的步骤处理而得,其为一白色固体(2.7g,产率52%)。
1.71-(2,4-二氯-苯基)-5-噻吩-2-基-1H-吡唑-3-羧酸乙酯(1-(2,4-Dichloro-phenyl)-5-thiophen-2-yl-1H-pyrazole-3-carboxylic acid ethylester)(3c)
化合物3c为将锂盐2c(13.2g,48.18mmol)与2,4-二氯苯基盐酸肼(11.3g,52.99mmol)通过制程1.5所述的步骤处理而得,其为一白色固体(10.8g,产率50%)。
1.81-(2,4-二氯-苯基)-4-甲基-5-噻吩-2-基-1H-吡唑-3-羧酸乙酯(1-(2,4-dichloro-phenyl)-4-methyl-5-thiophen-2-yl-1H-pyrazole-3-carboxylicacid ethyl ester)(3d)
化合物3d为将锂盐2d(2.8g,11.37mmol)与2,4-二氯苯基盐酸肼(2.6g,12.50mmol)通过制程1.5所述的步骤处理而得,其为一白色固体(10.8g,产率50%)。
1.94-溴-5-(5-溴-硒吩-2-基)-1-(2,4-二氯-苯基)-1H-吡唑-3-羧酸乙酯(4-Bromo-5-(5-bromo-selenophen-2-yl)-1-(2,4-dichloro-phenyl)-1H-pyrazole-3-carboxylic acid ethyl ester)(4a)
将3a(1.0g,2.41mmol)溶于乙腈中磁搅拌,并于0℃下,加入少量N-溴丁二酰亚胺(NBS,1.9g,7.23mmol)。并将混合物于室温中搅拌48小时。将形成的沉淀物过滤出,并以饱和硫酸钠及冷水冲洗,再置于真空中干燥得到一化合物4a(1.9g,92%)白色固体。
1.105-(5-溴-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-羧酸乙酯(5-(5-Bromo-thiophen-2-yl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazole-3-carboxylic acid ethyl ester)(4b)
化合物4b为将化合物3d(300mg,0.78mmol)与NBS(277mg,1.56mmol)通过制程1.9所述的步骤处理而得,其为一白色固体(333mg,产率93%)。
1.114-溴-5-(5-溴-硒吩-2-基)-1-(2,4-二氯-苯基)-1H-吡唑-3-羧酸(4-Bromo-5-(5-bromo-selenophen-2-yl)-1-(2,4-dichloro-phenyl)-1H-pyrazole-3-carboxylic acid)(5a)
将溶于甲醇(7mL)的氢氧化钾(407mg,7.24mmol)溶液加至溶于甲醇(15mL)的酯4a(1.5g,3.62mmol)磁搅拌溶液中。将混合物回流加热3小时。接着冷却,将其倒入水中,并以10%的盐酸水溶液酸化。接着,将沉淀物过滤出,并用水洗涤,于真空状态下干燥得到酸5a(1.3g,95%),白色固体。1.125-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-羧酸(5-(5-Chloro-thiophen-2-yl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazole-3-carboxylic acid)(5b)
化合物5b是通过如制程1.11所述的方法,由酯3b(1.0g,2.40mmol)作为起始物进行制备,所得产物为一白色固体(882mg,95%)。
1.131-(2,4-二氯-苯基)-5-噻吩-2-基-1H-吡唑-3-羧酸(1-(2,4-Dichloro-phenyl)-5-thiophen-2-yl-1H-pyrazole-3-carboxylic acid)(5c)
化合物5c是通过如制程1.11所述的方法,由酯3c(6.2g,15.07mmol)作为起始物进行制备,所得产物为一白色固体(5.6g,97%)。
1.145-(5-溴-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-羧酸乙酯(5-(5-Bromo-thiophen-2-yl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazole-3-carboxylic acid ethyl ester)(5d)
化合物5d是通过如制程1.11所述的方法,由酯4b(330mg,0.71mmol)作为起始物进行制备,所得产物为一白色固体(294mg,95%)。
1.151-[4-溴-5-(5-溴-硒吩-2-基)-1-(2,4-二氯-苯基)-1H-吡唑-3-基]-3-吡咯烷-1-基-丙烷-1,3-二酮(1-[4-Bromo-5-(5-bromo-selenophen-2-yl)-1-(2,4-dichloro-phenyl)-1H-pyr-azol-3-yl]-3-pyrrolidin-1-yl-propane-1,3-dione)(7)
将溶于甲苯(5mL)的酸5a(60mg,0.11mmol)及亚硫酰氯(SOCl2,0.1mL,1.36mmol)溶液回流3小时。接着于减压条件下,将溶剂抽干,以得到粗产物氯化酰(56mg,90%),淡色固体。于-78℃下,将双(三甲基甲硅烷基)胺基锂(lithium bis(trimethylsilyl)amide(LHMDS),0.3mL,0.3mmol)溶液加至溶于四氢呋喃的1-吡咯烷-1-基-乙酮(1-pyrrolidin-1-yl-ethanone,25mg,0.22mmol)溶液中。于相同温度下,持续搅拌50分钟后,加入上述粗产物氯化酰并再维持搅拌2小时。以水终止该反应,接着以乙酸乙酯(2×10mL)萃取。萃取物接着以食盐水洗涤,并以无水硫酸钠干燥,过滤并将溶剂挥发。并以正己烷/乙酸乙酯(2∶1)进行硅胶管柱快速层析的纯化,得到白色固体的甲酰胺7(39mg,55%)。1H-NMR(CDCl3,ppm):7.54(brs,1H),7.50(brs,1H),7.41-7.39(m,2H),7.16(d,1H),6.98(d,1H),6.05(s,1H),3.59-3.46(m,4H),2.02-1.85(m,4H),1.33-1.25(m,2H),ESMS 637.8(M+1).
1.161-[4-溴-5-(5-溴-硒吩-2-基)-1-(2,4-二氯-苯基)-1H-吡唑-3-基]-3-哌啶-1-基-丙烷-1,3-二酮(1-[4-Bromo-5-(5-bromo-selenophen-2-yl)-1-(2,4-dichloro-phenyl)-1H-pyr-azol-3-yl]-3-piperidin-1-yl-propane-1,3-dione)(8)
同制程1.15所述的方法,将粗产物1-(2,4-二氯-苯基)-4-溴-5-(5-溴-硒吩-2-基-1H-吡唑-3-甲酰氯(1-(2,4-dichloro-phenyl)-4-bromo-5-(5-bromo-selenophen-2-yl-1H-pyrazole-3-carboxylic chloride,60mg,0.11mmol)与1-哌啶-1-基-乙酮(1-piperidin-1-yl-ethanone,30mg,0.23mmol)以及双(三甲基甲硅烷基)胺基锂(lithium bis(trimethylsilyl)amide,0.3mL,0.27mmol)经由处理得到白色固体化合物8(25mg,36%)。1H-NMR(CDCl3,ppm):7.55(brs,1H),7.43-7.38(m,2H),7.17(d,1H),6.98(d,1H),6.21(s,1H),4.16(s,2H),3.58(t,2H),3.37(t,2H),1.72-1.50(m,4H),1.30-1.21(m,2H);ESMS 651.8(M+1).
1.173-[4-溴-5-(5-溴-硒吩-2-基)-1-(2,4-二氯-苯基)-1H-吡唑-3-基]-N,N-二乙基-3-氧-丙酰胺(3-[4-Bromo-5-(5-bromo-selenophen-2-yl)-1-(2,4-dichloro-phenyl)-1H-pyrazol-3-yl]-N,N-diethyl-3-oxo-propionamide)(9)
同制程1.15所述的方法,将粗产物1-(2,4-二氯-苯基)-4-溴-5-(5-溴-硒吩-2-基-1H-吡唑-3-甲酰氯(60mg,0.11mmol)与N,N-二乙基-乙酰胺(N,N-diethyl-acetamide,25mg,0.22mmol)以及双(三甲基甲硅烷基)胺基锂(0.3mL,0.3mmol)经由处理得到白色固体化合物9(30mg,43%)。1H-NMR(CDCl3,ppm):7.54-7.50(m,1H),7.43-7.39(m,2H),7.16(d,1H),6.99-6.97(m,1H),6.15(s,1H),3.48-3.28(m,4H),1.28-1.11(m,6H),ESMS 639.7(M+1).
1.183-[4-溴-5-(5-溴-硒吩-2-基)-1-(2,4-二氯-苯基)-1H-吡唑-3-基]-N,N-二异丁基-3-氧-丙酰胺(3-[4-Bromo-5-(5-bromo-selenophen-2-yl)-1-(2,4-dichloro-phenyl)-1H-pyrazol-3-yl]-N,N-diisobutyl-3-oxo-propionamide)(10)
同制程1.15所述的方法,将粗产物1-(2,4-二氯-苯基)-4-溴-5-(5-溴-硒吩-2-基-1H-吡唑-3-甲酰氯(60mg,0.11mmol)与N,N-二异丁基-乙酰胺(N,N-diisobutyl-acetamide,31mg,0.22mmol)以及双(三甲基甲硅烷基)胺基锂(0.3mL,0.3mmol)经由处理得到白色固体化合物10(45mg,61%)。1H-NMR(CDCl3,ppm):7.46(brs,1H),7.32(brs,2H),7.09(d,1H),6.91(d,1H),6.15(b,1H),3.20-3.04(m,4H),1.98-1.94(m,2H),0.91-0.70(m,12H),ESMS 695.8(M+1).
1.191-[5-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-基]-3-吡咯烷-1-基-丙烷-1,3-二酮(1-[5-(5-Chloro-thiophen-2-yl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyr-azol-3-yl]-3-pyrrolidin-1-yl-propane-1,3-dione)(11)
同制程1.15所述的方法,将粗产物5-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(5-(5-chloro-thiophen-2-yl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazole-3-carbonyl chloride,100mg,0.26mmol)与1-吡咯烷-1-基-乙酮(1-pyrrolidin-1-yl-ethanone,59mg,0.52mmol)以及双(三甲基甲硅烷基)胺基锂(0.7mL,0.7mmol)经由处理得到白色固体化合物11(44mg,35%)。1H-NMR(CDCl3,ppm):7.51(brs,1H),7.47(m,2H),6.82(d,1H),6.66(d,1H),5.84(s,1H),4.11(s,2H),2.43-3.47(m,4H),2.41(s,3H),2.38(s,3H),2.00-1.85(m,4H);ESMS 482.1(M+1).
1.201-[5-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-基]-3-哌啶-1-基-丙烷-1,3-二酮(1-[5-(5-Chloro-thiophen-2-yl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyr-azol-3-yl]-3-piperidin-1-yl-propane-1,3-dione)(12)
同制程1.15所述的方法,将粗产物5-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(100mg,0.26mmol)与1-哌啶-1-基-乙酮(66mg,0.52mmol)以及双(三甲基甲硅烷基)胺基锂(0.7mL,0.7mmol)经由处理得到白色固体化合物12(53mg,41%)。1H-NMR(CDCl3,ppm):7.51-7.50(m,1H),7.36-7.34(m,2H),6.81(d,1H),6.65(d,1H),6.04(s,1H),4.18(s,2H),3.61-3.58(m,2H),3.40-3.71(m,2H),2.41(s,3H),2.39(s,3H),1.63-1.57(m,4H),1.28-1.26(m,2H),ESMS 496.1(M+1).
1.211-氮杂环庚烷-1-基-3-[5-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-基]-丙烷-1,3-二酮(1-Azepan-1-yl-3-[5-(5-chloro-thiophen-2-yl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazol-3-yl]-propane-1,3-dione)(13)
同制程1.15所述的方法,将粗产物5-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(100mg,0.25mmol)与1-氮杂环庚烷-1-基-乙酮(1-azepan-1-yl-ethanone,53μL,0.50mmol)以及双(三甲基甲硅烷基)胺基锂(0.55mL,0.55mmol)经由处理得到白色固体化合物13(104.6mg,82%)。1H-NMR(CDCl3,ppm):7.46(brs,1H),7.40-7.26(m,2H),6.77(d,1H),6.62(d,1H),4.20-4.02(m,2H),3.51(t,2H),3.41(t,2H),2.38(s,3H),1.80-1.60(m,4H),1.60-1.40(m,4H).;ESMS 510.1(M+1).
1.223-[5-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-基]-N,N-二异丁基-3-氧-丙酰胺(3-[5-(5-Chloro-thiophen-2-yl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazol-3-yl]-N,N-diisobutyl-3-oxo-propionam-ide)(14)
同制程1.15所述的方法,将粗产物5-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(5-(5-chloro-thiophen-2-yl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazole-3-carbonyl chloride,100mg,0.25mmol)与N,N-二异丁基-乙酰胺(N,N-Diisobutyl-acetamide,55.0μL,0.50mmol)以及双(三甲基甲硅烷基)胺基锂(0.55mL,0.55mmol)经由处理得到白色固体化合物14(113.7mg,84%)。1H-NMR(CDCl3,ppm):7.49(brs,1H),7.40-7.26(m,2H),6.80(d,1H),6.64(d,1H),4.20-4.02(m,2H),3.20(d,2H),3.09(d,2H),2.41(s,3H),2.05-1.94(m,2H),0.88(d,3H),0.88(d,3H).
1.23N,N-二烯丙基-3-[5-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-基]-3-氧-丙酰胺(N,N-Diallyl-3-[5-(5-chloro-thiophen-2-yl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazol-3-yl]-3-oxo-propionamide)(15)
同制程1.15所述的方法,将粗产物5-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(100mg,0.25mmol)与N,N-二烯丙基-乙酰胺(N,N-diallyl-acetamide,52.0μL,0.50mmol)以及双(三甲基甲硅烷基)胺基锂(0.55mL,0.55mmol)经由处理得到白色固体化合物15(99.1mg,78%)。1H-NMR(CDCl3,ppm):7.50(brs,1H),7.40-7.28(m,2H),6.82(d,1H),6.65(d,1H),5.90-5.70(m,2H),5.30-5.10(m,4H),4.20-4.10(m,2H),4.02(d,2H),3.92(d,2H),2.41(s,3H).
1.241-[5-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-基]-2-甲基-3-吡咯烷-1-基-丙烷-1,3-二酮(1-[5-(5-Chloro-thiophen-2-yl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazol-3-yl]-2-methyl-3-pyrrolidin-1-yl-prop--ane-1,3-dione)(16)
将溶于乙醇(2mL)的化合物11(20mg)溶液逐滴加入一溶于乙醇(2mL)的NaH(8.3mg,0.2mmol)溶液中。将其混合物于是温下搅拌1小时。1小时后,加入CH3I(0.1mL,1.6mmol)并得到白色固体的化合物16(10mg,49%)。1H-NMR(CDCl3,ppm):7.45(d,1H),7.30-7.14(m,2H),6.74(d,1H),6.56(d,1H),4.67-4.46(m,1H),3.68-3.56(m,1H),3.46-3.32(m,2H),2.33(s,3H),1.88-1.61(m,3H),1.36(d,1H).;ESMS 496.1(M+1).
2.1N-(环己甲酰)-1-(2,4-二氯苯基)-4-甲基-5-(4-氯苯基)-1H-吡唑-3-甲酰胺(N-(Cyclohexanecarbonyl)-1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophen-yl)-1H-pyrazole-3-carboxamide)(17)
将溶于甲苯(toluene,5mL)的酸5c(80mg,0.21mmol)及亚硫酰氯(thionylchloride,0.88mL,1.2mmol)溶液回流3小时。接着于减压条件下,将溶剂蒸干,并得到粗产物氯化酰(56mg,90%),淡色固体。于-78℃下,将双(三甲基甲硅烷基)胺基锂(0.48mL,0.53mmol)加入溶于四氢呋喃(3mL)的环己甲酰胺(cyclohexane carboxamide,0.06g,0.44mmol)中。于相同-78℃温度下,持续搅拌50分钟后,逐滴加入上述溶于四氢呋喃(5mL)的氯化酰溶液。将反应混合物升温至-10℃并搅拌2小时。加入水终止反应并以乙酸乙酯(3×10mL)萃取,接着将萃取液以食盐水洗涤,并以无水硫酸镁干燥,并将有机溶剂挥发。接着以正己烷/乙酸乙酯(4∶1)进行硅胶管柱快速层析的纯化,得到白色固体的甲酰胺17(99mg,产率97%)。9.33(brs,1H),7.44(d,1H),7.34-7.25(m,4H),7.08(d,2H),3.28-3.21(m,1H),2.38(s,3H),2.01(d,2H),1.83(d,2H),1.73(d,1H),1.54-1.32(m,5H);ESMS 512.2(M+23).
2.2N-(哌啶-1-甲酰)-1-(2,4-二氯苯基)-4-甲基-5-(4-氯苯基)-1H-吡唑-3-甲酰胺(N-(piperidine-1-carbonyl)-1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophen-yl)-1H-pyrazole-3-carboxamide)(18)
同制程2.1所述的方法,将粗产物5-(4-氯-苯基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(5-(4-chloro-phenyl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazole-3-carbonyl chloride,104mg,0.26mmol)与1-哌啶甲酰胺(1-piperidine carboxamide,74mg,0.58mmol)以及双(三甲基甲硅烷基)胺基锂(0.64mL,0.70mmol)经由处理得到白色固体化合物18(134mg,98%)。1H-NMR(CDCl3,ppm):8.60(br,1H),7.42(s,1H),7.32-7.26(m,4H),7.08(d,2H),3.58-3.42(m,4H),2.35(s,3H),1.72-1.58(m,6H);ESMS 491.2(M+1).
2.3N-(4-氯-苯酰)-1-(2,4-二氯苯基)-4-甲基-5-(4-氯苯基)-1H-吡唑-3-甲酰胺(N-(4-chloro-benzoyl)-1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxamide)(19)
同制程2.1所述的方法,将粗产物5-(4-氯-苯基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(55mg,0.12mmol)与4-氯苯甲酰胺(4-Chlorobenzamide,47mg,0.30mmol)以及双(三甲基甲硅烷基)胺基锂(0.34mL,0.37mmol)经由处理得到白色固体化合物19(71mg,95%)。1H-NMR(CDCl3,ppm):10.10(br,1H),7.84(d,2H),7.50-7.42(m,3H),7.38-7.28(m,4H),7.10(d,2H),2.39(s,3H);ESMS491.2(M+1).
2.4N-(2,2-二甲基-丙酰)-1-(2,4-二氯苯基)-4-甲基-5-(4-氯苯基)-1H-吡唑-3-甲酰胺(N-(2,2-dimethyl-propionyl)-1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyr-azole-3-carboxamide)(20)
同制程2.1所述的方法,将粗产物5-(4-氯-苯基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(55mg,0.12mmol)与三甲基乙酰胺(trimethylacetamide,31mg,0.30mmol)以及双(三甲基甲硅烷基)胺基锂(0.34mL,0.37mmol)经由处理得到白色固体化合物20(68mg,99%)。1H-NMR(CDCl3,ppm):9.81(br,1H),7.46(d,1H),7.34-7.25(m,4H),7.08(d,2H),2.37(s,3H),1.29(s,9H);ESMS 464.0(M+1).
2.5N-(己酰)-1-(2,4-二氯苯基)-4-甲基-5-(4-氯苯基)-1H-吡唑3-甲酰胺(N-(hexanoyl)-1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxamide)(21)
同制程2.1所述的方法,将粗产物5-(4-氯-苯基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(55mg,0.12mmol)与己酰胺(hexanoamide,35mg,0.30mmol)以及双(三甲基甲硅烷基)胺基锂(0.34mL,0.37mmol)经由处理得到白色固体化合物21(33mg,48%)。1H-NMR(CDCl3,ppm):9.36(brs,1H),7.45(d,1H),7.35-7.24(m,4H),7.08(d,2H),2.96(t,2H),2.37(s,3H),1.78-1.65(m,2H),1.45-1.31(m,4H),0.91(t,2H);ESMS 478.0(M+1).
2.6N-(环丙烷甲酰)-1-(2,4-二氯苯基)-4-甲基-5-(4-氯苯基)-1H-吡唑-3-甲酰胺(N-(Cyclopropanecarbonyl)-1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxamide)(22)
同制程2.1所述的方法,将粗产物5-(4-氯-苯基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(55mg,0.12mmol)与环丙酰胺(cyclopropanecarboxamide,33mg,0.39mmol)以及双(三甲基甲硅烷基)胺基锂(0.42mL,0.46mmol)经由处理得到白色固体化合物22(57mg,96%)。1H-NMR(CDCl3,ppm):9.43(brs,1H),7.44(d,1H),7.34-7.26(m,4H),7.09(d,2H),3.03-2.97(m,1H),2.39(s,3H),1.23-1.18(m,2H),1.05-0.94(m,2H).
2.7N-(4-甲基-苯酰)-1-(2,4-二氯苯基)-4-甲基-5-(4-氯苯基)-1H-吡唑-3-甲酰胺(N-(4-methyl-benzoyl)-1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxamide)(23)
同制程2.1所述的方法,将粗产物5-(4-氯-苯基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(55mg,0.12mmol)与对甲苯甲酰胺(p-Toluamide,53mg,0.39mmol)以及双(三甲基甲硅烷基)胺基锂(0.42mL,0.46mmol)经由处理得到白色固体化合物23(62mg,94%)。1H-NMR(CDCl3,ppm):10.15(br,1H),7.80(d,2H),7.46(s,1H),7.38-7.23(m,6H),7.10(d,2H),2.40(s,3H),2.40(s,3H).
2.8N-(环己甲酰)-1-(2,4-二氯苯基)-4-甲基-5-(5-氯噻吩-2-基)-1H-吡唑-3-甲酰胺(N-(Cyclohexanecarbonyl)-1-(2,4-dichlorophenyl)-4-methyl-5-(5-chlorothio-phen-2-yl)-1H-pyrazole-3-carboxamide)(24)
同制程2.1所述的方法,将粗产物5-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(57mg,0.14mmol)与环己甲酰胺(38mg,0.30mmol)以及双(三甲基甲硅烷基)胺基锂(0.34mL,0.37mmol)经由处理得到白色固体化合物24(68mg,96%)。1H-NMR(CDCl3,ppm):9.29(br,1H),7.52(d,1H),7.40-7.27(m,2H),6.84(d,1H),6.69(d,1H),3.26-3.18(m,1H),2.47(s,3H),2.00(d,2H),1.83(d,2H),1.72(d,1H),1.54-1.19(m,5H);ESMS 518.0(M+23).
2.9N-(哌啶-1-甲酰)-1-(2,4-二氯苯基)-4-甲基-5-(5-氯噻吩-2-基)-1H-吡唑-3-甲酰胺(N-(piperidine-1-carbonyl)-1-(2,4-dichlorophenyl)-4-methyl-5-(5-chlorothiophen-2-yl)-1H-pyrazole-3-carboxamide)(25)
同制程2.1所述的方法,将粗产物5-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(57mg,0.14mmol)与1-哌啶甲酰胺(38mg,0.30mmol)以及双(三甲基甲硅烷基)胺基锂(0.34mL,0.37mmol)经由处理得到白色固体化合物25(66mg,94%)。1H-NMR(CDCl3,ppm):8.47(brs,1H),7.51(d,1H),7.40-7.26(m,2H),6.83(d,1H),6.69(d,1H),3.58-3.42(m,4H),2.45(s,3H),1.69-1.56(m,6H);ESMS 497.3(M+1).
2.10N-(4-氯-苯酰)-1-(2,4-二氯苯基)-4-甲基-5-(5-氯噻吩-2-基)-1H-吡唑-3-甲酰胺(N-(4-chloro-benzoyl)-1-(2,4-dichlorophenyl)-4-methyl-5-(5-chlorothiophen-2-yl)-1H-pyrazole-3-carboxamide)(26)
同制程2.1所述的方法,将粗产物5-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(57mg,0.14mmol)与4-chlorobenzamide(47mg,0.30mmol)以及双(三甲基甲硅烷基)胺基锂(0.34mL,0.37mmol)经由处理得到白色固体化合物26(68mg,99%)。1H-NMR(CDCl3,ppm):10.05(brs,1H),7.82(d,2H),7.54(d,1H),7.47-7.35(m,4H),6.85(d,1H),6.72(d,1H),2.48(s,3H).
2.11N-(2,2-二甲基-丙酰)-1-(2,4-二氯苯基)-4-甲基-5-(5-氯-噻吩-2-基)-1H-吡唑-3-甲酰胺(N-(2,2-dimethyl-propionyl)-1-(2,4-dichlorophenyl)-4-methyl-5-(5-chloro-thiophen-2-yl)-1H-pyrazole-3-carboxamide)(27)
同制程2.1所述的方法,将粗产物5-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(62mg,0.15mmol)与三甲基乙酰胺(33mg,0.33mmol)以及双(三甲基甲硅烷基)胺基锂(0.36mL,0.39mmol)经由处理得到白色固体化合物27(73mg,99%)。1H-NMR(CDCl3,ppm):9.76(brs,1H),7.53(d,1H),7.41-7.32(m,2H),6.84(d,1H),6.69(d,1H),2.46(s,3H),1.26(s,9H);ESMS 470.0(M+1).
2.12N-(己酰)-1-(2,4-二氯苯基)-4-甲基-5-(5-氯噻吩2-基)-1H-吡唑-3-甲酰胺(N-(hexanoyl)-1-(2,4-dichlorophenyl)-4-methyl-5-(5-chlorothiophen-2-yl)-1H-pyrazole-3-carboxamide)(28)
同制程2.1所述的方法,将粗产物5-(5-氯-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(62mg,0.15mmol)与己酰胺(38mg,0.33mmol)以及双(三甲基甲硅烷基)胺基锂(0.36mL,0.39mmol)经由处理得到白色固体化合物28(63mg,85%)。1H-NMR(CDCl3,ppm):9.32(brs,1H),7.52(d,1H),7.39-7.30(m,2H),6.84(d,1H),6.69(d,1H),2.94(t,2H),2.46(s,3H),1.77-1.67(m,2H),1.43-1.30(m,4H),0.91(t,2H);ESMS 506.0(M+23).
2.13N-(环己甲酰)-1-(2,4-二氯苯基)-4-甲基-5-(5-溴噻吩-2-基)-1H-吡唑-3-甲酰胺(N-(Cyclohexanecarbonyl)-1-(2,4-dichlorophenyl)-4-methyl-5-(5-bromothio-phen-2-yl)-1H-pyrazole-3-carboxamide)(29)
同制程2.1所述的方法,将粗产物5-(5-溴-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(5-(5-bromo-thioph-en-2-yl)-1-(2,4-dichloro-phenyl)-4-methyl-1H-pyrazole-3-carbonyl chloride,62mg,0.15mmol)与环己甲酰胺(37mg,0.29mmol)以及双(三甲基甲硅烷基)胺基锂(0.32mL,0.35mmol)经由处理得到白色固体化合物29(65mg,88%)。1H-NMR(CDCl3,ppm):9.28(brs,1H),7.52(d,1H),7.40-7.25(m,2H),6.97(d,1H),6.66(d,1H),3.27-3.15(m,1H),2.47(s,3H),1.99(d,2H),1.83(d,2H),1.73(d,1H),1.55-1.20(m,5H).
2.14N-(环丙甲酰)-1-(2,4-二氯苯基)-4-甲基-5-(5-溴-噻吩-2-基)-1H-吡唑-3-甲酰胺(N-(Cyclopropanecarbonyl)-1-(2,4-dichlorophenyl)-4-methyl-5-(5-bromo-thiophen-2-yl)-1H-pyrazole-3-carboxamide)(30)
同制程2.1所述的方法,将粗产物5-(5-溴-噻吩-2-基)-1-(2,4-二氯-苯基)-4-甲基-1H-吡唑-3-甲酰氯(62mg,0.15mmol)与环丙酰胺(25mg,0.29mmol)以及双(三甲基甲硅烷基)胺基锂(0.32mL,0.35mmol)经由处理得到白色固体化合物30(66mg,97%)。1H-NMR(CDCl3,ppm):9.39(br,1H),7.52(d,1H),7.40-7.25(m,2H),6.98(d,1H),6.67(d,1H),3.05-2.92(m,1H),2.48(s,3H),1.24-1.15(m,2H),1.07-0.95(m,2H).
2.15N-(2-二甲基胺-2-甲基-丙酰基)-1-(2,4-二氯苯基)-4-甲基-5-(4-氯苯基)-1H-吡唑-3-甲酰胺(N-(2-dimethylamino-2-methyl-propionyl)-1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxamide)(31)
同制程2.1所述的方法,将粗产物5-(4-氯苯基-1-(2,4-二氯苯基)-4-甲基-1H-吡唑-3-甲酰氯(60mg,0.15mmol)与2-二甲基胺-2-甲基-丙酰胺(2-dimethylamino-2-methyl-propionamide,63mg,0.49mmol)以及双(三甲基甲硅烷基)胺基锂(0.53mL,0.58mmol)经由处理得到白色固体化合物31(59mg,80%)。1H-NMR(CDCl3,ppm):11.37(br,1H),7.46(d,1H),7.35-7.21(m,4H),7.070(d,2H),2.38(s,3H),2.23(s,6H),1.24(s,6H);ESMS 493.1(M+1).
2.16N-[2-(乙基-甲基-胺)-2-甲基-丙酰基]-1-(2,4-二氯苯基)-4-甲基-5-(4-氯苯基)-1H-吡唑-3-甲酰胺(N-[2-(ethyl-methyl-amino)-2-methyl-propionyl]-1-(2,4-dichlorophenyl)-4-methyl-5-(4-chlorophenyl)-1H-pyrazole-3-carboxamide)(32)
同制程2.1所述的方法,将粗产物5-(4-氯苯基-1-(2,4-二氯苯基)-4-甲基-1H-吡唑-3-甲酰氯(55mg,0.12mmol)与2-(乙基-甲基-胺)-2-甲基-丙酰胺(2-(Ethyl-methyl-amino)-2-methyl-propionamide,56mg,0.39mmol)以及双(三甲基甲硅烷基)胺基锂(0.42mL,0.46mmol)经由处理得到白色固体化合物32(46mg,75%)。1H-NMR(CDCl3,ppm):11.46(brs,1H),7.45(d,1H),7.33-7.24(m,4H),7.09(d,2H),2.38(s,3H),2.33(q,2H),2.20(s,3H),1.25(s,6H),1.07(t,3H);ESMS 530.0(M+23).
生物检定
本发明的测试化合物对于CB1及CB2的受体亲合力是以体外竞争性放射配基受体结合分析方法作测试。本方法通过区分各化合物对受体放射配基的取代力来区别其结合力。具有较放射配基高的受体亲合力的化合物会取代配基与受体结合,而较放射配基低或是无亲合力的化合物则无法取代配基。放射线的读值可用作进一步受体结合作用的分析,并协助预测其测试化合物的药物活性。
此试验以鼠的脑或CB1稳定表达的细胞系作为CB1的来源,并以鼠的脾脏或CB2稳定表达的细胞系作为CB2的来源。使用净重175~200克的雄性Sprague-Dawley大鼠,并于依标准状态下自由供给食物及水作饲养。将动物作宰杀,并将含小脑的脑部及脾脏切除下来。将切下来的脑部及脾脏组织分别以Polytron手握式均质机,于加入10体积份的冰冷缓冲液A(50mM三羟甲基氨基甲烷缓冲液(Tris),5mM MgCl2,2.5mM乙烯二胺四乙酸(EDTA),pH 7.4,10%蔗糖)中,通过蛋白酶抑制剂进行均质化。以2000xg、4℃状态离心该均浆15分钟。再以43000xg、4℃状态离心悬浮物30分钟。且将最后颗粒物再次悬浮于缓冲溶液A中,并储存于-80℃状态下。将细胞由培养皿刮下,以作为CB1或CB2稳定表达细胞系的多膜片段的纯化使用。经由超音波处理过后,将多膜片段经由相同离心以及储存步骤进行纯化。以Bio-Rad Laboratories,Inc.,Hercules,CA的手册内提及的Bradford法测定纯化膜的蛋白质浓度。
于受体结合试验中,0.2~8μg膜片段是以0.75nM[3H]CP55,940及测试化合物于培养缓冲液(50mM Tris-HCl,5mM MgCl2,1mM EDTA,0.3%BSA,pH7.4)中培养。非特异性结合值是以1μM的CP55,940测得。将混合物置于Multiscreen微孔板(Millipore,Billerica,MA)中,于30℃下培养1.5小时。培养结束后,以Manifold过滤系统终止作用,并以冰冷洗涤缓冲液(50mM Tris,pH 7.4,0.25%BSA)冲洗四次。以Topcount(Perkin Elmer Inc.)测定滤纸上的放射值。计算抑制50%[3H]CP55,940结合的所需化合物浓度,以获得IC50值。
以DELFIA GTP-结合测定系统(Perkin Elmer Inc.,Boston,MA)测试每一测试化合物的功效。DELFIA GTP-结合测定是为时间分辨荧光分析法,其通过促效剂使G蛋白次单元进行GDP-GTP交换,进而活化G蛋白偶联受体。该方法是以Eu-GTP观察G蛋白的促效剂活化现象。以CP55,940激活CB1受体会导致G蛋白的α次单元上的GDP遭GTP取代。GTP-Gα复合物代表G蛋白的活化型态。Eu-GTP(不可水解的GTP类似物)可用来定量G蛋白的活化量(Peltonen et al.,Eur.J.Pharmacol.(1998)355:275)。
将表现人类CB1的HEK293细胞膜再次悬浮于测定缓冲液(50mM HEPES,pH 7.4,100mM NaCl,100g/mL皂素,5mM MgCl2,2M GDP,0.5%BSA)中。于AcroPlate(Pall Life Sciences,Ann Arbor,MI)的每一孔中加入等量膜样本。待加入测试化合物(于0.1%DMSO中不同浓度)及CP55,940(20nM于测定缓冲液中)后,将测定板置于暗处,并于30℃下轻摇60分钟进行培养。接着,于每一孔中加入Eu-GTP,且将测定板置于暗处,并于30℃状态下培养35分钟。最后,以测定系统所提供的洗涤液,洗涤测定板四次,以终止作用。利用多功能微量盘分析仪(Victor 2 multi-label reader)测得荧光讯号,进而鉴定Eu-GTP的结合量。通过非线性回归(Prism;GraphPad,San Diego,CA)的浓度变化曲线获得每一化合物的IC50值(即,抑制50%的CP55,940-激活Eu-GTP结合)。
于CB1受体结合试验及/或CB2受体结合试验中发现,所有测试化合物的IC50值都介于0.1nM与30μM之间。Eu-GTP结合试验也可作为指标,其测试结果与上述的放射配基受体结合分析的测试结果相符。
其它实施例
本说明书中所公开的全部特征可以任何方式组合。本说明书中所公开的特征可被相同、相当、或类似目的的另一种特征所取代。因此,除非另有指明,否则所公开的各特征仅为一般性的相当或类似特征的实例。
通过上述说明,本发明可轻易的由熟悉本项技艺者了解本发明必要的特征,且在不悖离本发明的范畴下,能够对本发明有种种改变及修饰,以适用于种种用途与情况。因此其它具体实施例也在本申请专利范围内。
Claims (25)
1.一种如式(I)的化合物:
其中
X为C(RaRb)或N(Ra),其每一Ra及Rb是各自独立为氢、C1-C10烷基、C3-C20环烷基、C1-C20杂环烷基、芳基、或杂芳基;
R2为氢、卤素、C1-C10烷基、C2-C10烯基、C2-C10炔基、C3-C20环烷基、C3-C20环烯基、C1-C20杂环烷基、C1-C20杂环烯基、芳基、杂芳基、或NRcRd,其每一Rc及Rd各自独立为氢、C1-C10烷基、C3-C20环烷基、C1-C20杂环烷基、芳基、或杂芳基;且
每一R1、R3、及R4各自独立为氢、卤素、C1-C10烷基、C2-C10烯基、C2-C10炔基、C3-C20环烷基、C3-C20环烯基、C1-C20杂环烷基、C1-C20杂环烯基、芳基、或杂芳基。
2.根据权利要求1所述的化合物,其中X为CH2。
3.根据权利要求1所述的化合物,其中R2为C1-C20杂环烷基或NRcRd,其每一Rc及Rd各自独立为氢、C1-C10烷基、C3-C20环烷基、C1-C20杂环烷基、芳基或杂芳基。
4.根据权利要求1所述的化合物,其中X为NH。
5.根据权利要求4所述的化合物,R2为C1-C10烷基、C3-C20环烷基、C1-C20杂环烷基或芳基。
6.根据权利要求5所述的化合物,其中R1为经卤素取代的芳基。
7.根据权利要求6所述的化合物,其中R1为2,4-二氯苯基。
8.根据权利要求1所述的化合物,其中R1为经卤素取代的芳基。
9.根据权利要求8所述的化合物,其中R1为2,4-二氯苯基。
10.根据权利要求1所述的化合物,其中R4为芳基或杂芳基。
11.根据权利要求1所述的化合物,其中R2为C1-C10烷基、C3-C20环烷基、C1-C20杂环烷基、芳基或NRcRd,其每一Rc及Rd各自独立为氢、C1-C10烷基、C3-C20环烷基、C1-C20杂环烷基、芳基或杂芳基。
12.根据权利要求1所述的化合物,其中R3为卤素或C1-C10烷基。
13.一种治疗大麻素受体相关疾病的方法,包括给予一试体一有效剂量的如下式(I)所示化合物:
其中,
X为C(RaRb)或N(Ra),其每一Ra及Rb各自独立为氢、C1-C10烷基、C3-C20环烷基、C1-C20杂环烷基、芳基、或杂芳基;
R2为氢、卤素、C1-C10烷基、C2-C10烯基、C2-C10炔基、C3-C20环烷基、C3-C20环烯基、C1-C20杂环烷基、C1-C20杂环烯基、芳基、杂芳基、或NRcRd,其每一Rc及Rd各自独立为氢、C1-C10烷基、C3-C20环烷基、C1-C20杂环烷基、芳基、或杂芳基;且
每一R1、R3、及R4各自独立为氢、卤素、C1-C10烷基、C2-C10烯基、C2-C10炔基、C3-C20环烷基、C3-C20环烯基、C1-C20杂环烷基、C1-C20杂环烯基、芳基、或杂芳基。
14.根据权利要求13所述的方法,其中X为CH2或NH。
15.根据权利要求14所述的方法,其中R2为C1-C10烷基、C3-C20环烷基、C1-C20杂环烷基、芳基或NRcRd,其每一Rc及Rd各自独立为氢、C1-C10烷基、C3-C20环烷基、C1-C20杂环烷基、芳基或杂芳基。
16.根据权利要求15所述的方法,其中R1为经卤素取代的芳基。
17.根据权利要求16所述的方法,其中R1为2,4-二氯苯基。
18.根据权利要求13所述的方法,其中R1为2,4-二氯苯基。
19.根据权利要求13所述的方法,其中R4为芳基或杂芳基。
20.根据权利要求13所述的方法,其中R2为C1-C10烷基、C3-C20环烷基、C1-C20杂环烷基、芳基或NRcRd,其每一Rc及Rd各自独立为氢、C1-C10烷基、C3-C20环烷基、C1-C20杂环烷基、芳基或杂芳基。
21.根据权利要求13所述的方法,其中R3为卤素或C1-C10烷基。
22.根据权利要求13所述的方法,其中该大麻素受体相关疾病为肝脏纤维化、掉发症、肥胖症、新陈代谢症候群、高血脂症、二型糖尿病、动脉粥状硬化症、物质成瘾疾、忧郁症、动机缺乏症候群、学习或记忆官能障碍、痛觉缺失、失血性休克、局部缺血、肝硬化、神经痛、止吐、高眼压、支气管舒张、骨质疏松、癌症、神经退化性疾病、或发炎性疾病。
23.根据权利要求22所述的方法,其中该大麻素受体相关疾病为肥胖症、新陈代谢症候群、物质成瘾疾、神经痛、或发炎性疾病。
24.根据权利要求22所述的方法,其中该大麻素受体相关疾病为癌症。
25.根据权利要求24所述的方法,其中该癌症为前列腺癌、肺癌、乳癌、或头颈部癌。
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CN104873499A (zh) * | 2015-06-11 | 2015-09-02 | 中国医学科学院医药生物技术研究所 | 一种上调Runx2转录活性的化合物在防治骨质疏松中的应用 |
CN109608415A (zh) * | 2019-01-21 | 2019-04-12 | 暨南大学 | 噻唑甲酰胺类化合物及其合成和应用 |
CN110114351A (zh) * | 2016-12-12 | 2019-08-09 | 维托尔股份有限公司 | Mct4的杂环抑制剂 |
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WO2008062480A2 (en) * | 2006-11-24 | 2008-05-29 | Ind-Swift Laboratories Limited | An improved process for the preparation of rimonabant |
EP2242745A1 (de) * | 2008-02-07 | 2010-10-27 | Sanofi-Aventis | Neue phenyl-substituierte imidazolidine, verfahren zu deren herstellung, diese verbindungen enthaltende arzneimittel und deren verwendung |
CN101585810B (zh) * | 2008-05-23 | 2011-12-14 | 华东理工大学 | 一种5-(4-氯苯基)-1-(2,4-二氯苯基)-4-甲基吡唑-3-甲酸酯的制备方法 |
CN104844514B (zh) * | 2015-05-21 | 2017-11-10 | 山东大学 | 二芳基吡唑类化合物及其制备方法与应用 |
ES2894919T3 (es) | 2015-06-12 | 2022-02-16 | Vettore Llc | Inhibidores de MCT4 para el tratamiento de enfermedades |
KR101974414B1 (ko) * | 2017-09-12 | 2019-05-02 | 주식회사 티에스디라이프사이언스 | 1h-피라졸-3-아마이드계 화합물 유도체를 포함하는 섬유증 예방 또는 치료용 조성물 |
WO2024036243A2 (en) * | 2022-08-10 | 2024-02-15 | Vettore, LLC | Salts of heterocyclic inhibitors of monocarboxylate transporter 4 for the treatment of disease |
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CN104873499A (zh) * | 2015-06-11 | 2015-09-02 | 中国医学科学院医药生物技术研究所 | 一种上调Runx2转录活性的化合物在防治骨质疏松中的应用 |
CN104873499B (zh) * | 2015-06-11 | 2017-10-17 | 中国医学科学院医药生物技术研究所 | 一种上调Runx2 转录活性的化合物在防治骨质疏松中的应用 |
CN110114351A (zh) * | 2016-12-12 | 2019-08-09 | 维托尔股份有限公司 | Mct4的杂环抑制剂 |
CN110114351B (zh) * | 2016-12-12 | 2022-09-20 | 维托尔股份有限公司 | Mct4的杂环抑制剂 |
CN109608415A (zh) * | 2019-01-21 | 2019-04-12 | 暨南大学 | 噻唑甲酰胺类化合物及其合成和应用 |
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