CN116462662A - 芳香并环类Nav1.8抑制剂及其用途 - Google Patents
芳香并环类Nav1.8抑制剂及其用途 Download PDFInfo
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- CN116462662A CN116462662A CN202310081517.7A CN202310081517A CN116462662A CN 116462662 A CN116462662 A CN 116462662A CN 202310081517 A CN202310081517 A CN 202310081517A CN 116462662 A CN116462662 A CN 116462662A
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- compound
- pharmaceutically acceptable
- acceptable salt
- halogen
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Abstract
本发明提供一种作为钠通道阻滞剂的芳香并环类化合物及其用途,其对钠离子通道Nav1.8具有抑制活性,可用作广泛疼痛治疗的药物。
Description
技术领域
本发明涉及对钠离子通道Nav1.8具有抑制活性的芳香并环类化合物及其用途。
背景技术
疼痛是一种复杂的生理心理活动,是临床上最常见的症状之一。疼痛原本作为人体的一种保护机制,意在提醒人们注意潜在的危险,但异常的疼痛则会造成生理功能紊乱,尤其是慢性疼痛,严重影响人们的生活质量。据2019年的一份报告显示(http://news.medlive.cn/anes/info-progress/show-153086_201.html),全球慢性疼痛的患病率达12%~30%。在美国,疼痛的患者人数已经超过了糖尿病、心脏病和癌症的患病人数,每年因疼痛造成的经济损失高达5600~6350亿美元(https://www.physio-pedia.com/Epidemiology_of_Pain);而中国2015年的统计数据显示,疼痛市场也高达208亿人民币(https://paindoctor.com/resources/chronic-pain-statistics/)。目前常用的止痛药阿片类受体激动剂、环氧合酶抑制剂、GABA受体激动剂等,或存在成瘾性、呼吸抑制问题,或存在胃肠道副作用,或导致心血管不良反应、中枢抑制等,临床需求远未得到满足。由此可见,疼痛市场潜力巨大。(Nora D.Volkow,A.Thomas McLellan.Opioid Abuse in ChronicPain-Misconceptions and Mitigation Strategies.N Engl J Med,2016,374(13):1253-63.Sheng H G,Shao J Y,Kir Kland S C,et al.Inhibition of human colon Cancercell growth by selective inhibition of cyclooxygenase-2.J Chm Invest,1997,99:2254.Janette Brohan,Basavana G.Goudra.The Role of GABA Receptor Agonists inAnesthesia and Sedation.CNS Drugs,2017.)
疼痛包含多种类型,按刺激性质可分为机械痛、温度性疼痛、化学性疼痛;按炎症病因可分为炎性痛、非炎性痛;按神经部位可分为中枢神经性疼痛、周围神经性疼痛、植物神经性疼痛;按病程长短则可分为急性痛和慢性痛。无论哪种形式的疼痛,都离不开钠离子通道(voltage-gated sodium channels,Navs)的参与。
人体痛觉的产生源于遍布全身的周围神经末梢的痛觉感受器,其可将机械刺激、热刺激、冷刺激、化学刺激转化为神经冲动,经传入神经传递到背根神经节(dorsal rootganglia,DRG),再经传出神经传至神经中枢,从而使人感知疼痛(Bennett DL,Clark AJ,Huang J,et al.The Role of Voltage-Gated Sodium Channels in PainSignaling.Physiol Rev,2019,99:1079-1151.)。而Navs的作用则是在神经冲动信号传递的过程中,扮演着信号的触发和传递的角色,是动作电位(即神经冲动)上升支的主要介质(Mark D.Baker,John N.Wood.Involvement of Na+channels in pain pathways.TRENDSin Pharmacological Sciences,2001,22(1):27-31.Alan L Goldin.RESURGENCE OFSODIUM CHANNEL RESEARCH.Annu.Rev.Physiol.2001.63:871-894.)。因此,抑制Navs有助于疼痛的缓解和治疗。但现有的Navs抑制剂如利多卡因、卡马西平、拉莫三嗪等,均因对Navs无选择性而存在治疗窗口窄、副作用大的缺陷。因此,人们转向了对选择性Nav抑制剂的研究。
Navs是一类由分子量为260kD的α亚基和分子量为30~40kD的β亚基组成的跨膜离子通道蛋白(Bennett DL,Clark AJ,Huang J,et al.The Role of Voltage-Gated SodiumChannels in Pain Signaling.Physiol Rev,2019,99:1079-1151.)。根据河豚毒素(tetrodotoxin,TTX)对其抑制活性的强弱,可将Navs的亚型分为两类:TTX敏感型(TTX-S),包含Nav1.1、Nav1.2、Nav1.3、Nav1.4、Nav1.6、Nav1.7;TTX耐受型(TTX-R),包含Nav1.5、Nav1.8、Nav1.9。根据现有的生理学及药理学研究(Bennett DL,Clark AJ,Huang J,etal.The Role of Voltage-Gated Sodium Channels in Pain Signaling.Physiol Rev,2019,99:1079-1151.Alan L Goldin.RESURGENCE OF SODIUM CHANNEL RESEARCH.Annu.Rev.Physiol.2001.63:871-94.Laura Solé,Michael M.Tamkun.Trafficking mechanismsunderlying Nav channel subcellular localization in neurons.Channels,2020,14(1),1-17.Manuel de Lera Ruiz,Richard L.Kraus.Voltage-Gated Sodium Channels:Structure,Function,Pharmacology and Clinical Indications.J.Med.Chem.,2015,58(18):7093-7118.),如表1所示,Nav1.1、Nav1.2、Nav1.3主要分布在CNS区,与癫痫、局部麻醉等CNS疾病相关;Nav1.4主要分布在骨骼肌中,其抑制剂用作肌强直局麻药;Nav1.5主要分布在心肌细胞中,其抑制剂用于治疗心率失常;Nav1.6则涉及运动障碍;目前,与疼痛相关的靶点主要是Nav1.7、Nav1.8和Nav1.9。其中,Nav1.7抑制剂在疼痛领域的应用研究最为广泛,但至今无相关临床试验取得成功;Nav1.9研究较少,其在疼痛中的作用机制尚不十分清楚,也未见相关抑制剂的疼痛药效模型证据报导;关于Nav1.8的作用机制,Dib-Hajj等人(Bennett DL,Clark AJ,Huang J,et al.The Role of Voltage-Gated Sodium Channelsin Pain Signaling.Physiol Rev,2019,99:1079–1151.)在2019年的综述中总结了现有研究,认为Nav1.8是动作电势上升支的主要贡献者,它的快速启动支持高频放电,拥有高的激活阈值,慢的动力学过程,阻断Nav1.8,就可以阻断动作电位的产生及电信号的传递;Blair和Bean研究(Blair NT,Bean BP.Roles of tetrodotoxin(TTX)-sensitive Na+current,TTX-resistant Na+current,and Ca2+current in the action potentials ofnociceptive sensory neurons.J Neurosci 2002,22:10277-10290.)认为,尽管Nav1.8和Nav1.9在DRG中均有表达,但Nav1.8对TTX-R电流的贡献才是最主要的,在神经损伤急性期,Nav1.8在损伤的神经元中是下调的,但在邻近的未损伤神经元中是上调的,从而增加自发放电;在慢性期,损伤的神经元与未损伤的神经元之间形成串扰,导致损伤的神经元中Nav1.8也上调,从而进一步增加并维持特发性放电。除机制研究外,Nav1.8抑制剂在疼痛动物模型上的药效也得到了验证:如雅培开发的A-803467在角叉菜胶模型、完全弗氏佐剂(CFA)模型、坐骨神经慢性压迫疼痛(CCI)模型、脊神经结扎疼痛(SNL)模型以及急性机械痛模型上,相比于模型组,其止痛效应均超过了50%(Michael F.Jarvis,Prisca Honore.,etal.A-803467,a potent and selective Nav1.8 sodium channel blocker,attenuatesneuropathic and inflammatory pain in the rat.PNAS,2007,104(20):8520-8525.);且A-803467在链脲佐菌素(STZ)诱导的糖尿病神经病理性热痛模型上全身给药时药效优于利多卡因,足底局部注射给药时二者相当,但A-803467药效维持时间更长(Mert T,GunesY.Antinociceptive activities of lidocaine and the nav1.8 blocker a803467indiabetic rats.J Am Assoc Lab Anim Sci.2012;51(5):579-585.);辉瑞的PF-01247324也在CFA和SNL模型上展现了显著的疼痛缓解效果(Payne CE,Brown AR,Theile JW,etal.A novel selective and orally bioavailable Nav 1.8channel blocker,PF-01247324,attenuates nociception and sensory neuron excitability.Br JPharmacol.2015;172(10):2654-2670.)。最重要的是,Vertex公司开发的高选择性Nav1.8抑制剂VX150在疼痛相关的三个二期临床上已取得成功。综上所述,Nav1.8是一个治疗疼痛或者疼痛相关疾病非常有潜力的靶点。
表1.Navs各亚型概况
目前报导的Nav1.8抑制剂在研公司并不多,国外主要有雅培、辉瑞(WO2013114250A1)、吉利德(AU2015224425A1)、住友(WO2015008861A1)、艾伯维(WO2016149169A1)、Raqualia(WO2020138271A1)、默沙东(WO2020092187A1)、Lieber(WO2020014243A1)和Vertex(WO2019014352A1),国内主要有恒瑞(WO2020151728A1)、上海济煜医药(CN111808019A)。其中,大多数公司的专利中并未公布Nav1.8的具体抑制活性,或活性并不佳,仅辉瑞的PF-04531083和Vertex的VX-150、VX-548进入过II期临床,且PF-04531083因在术后牙痛中未表现出优于安慰剂的活性而终止开发;VX-150在炎性痛、术后急性痛、神经病理性疼痛三个II期临床上均获得成功,使Nav1.8在疼痛中的作用得到了初步验证,但据Vertex官方报导因其药代动力学性质(pharmacokinetics,PK)不够理想,目前已停止开发,VX-548正在进行三期临床试验。因此,开发新的Nav1.8抑制剂仍然有着广阔的前景,也十分必要。
发明内容
本发明的目的是提供对钠离子通道,特别是Nav1.8钠离子通道具有抑制活性的芳香并环类化合物及其用途。
为了实现上述目的,本发明提供了由下式I,其溶剂化物、互变异构体或药学上可接受的盐:
其中,X1、X2、Z1、Z2独立地选自取代或未取代的C或N;
R1独立地选自H、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3;其中R2、R3独立地选自氢、-NH2、-C1-3烷基;
环A为取代或未取代的苯环或6元芳杂环;
环B为取代或未取代的3-10元脂肪环或脂肪杂环。
在某些实施方案中,X1、X2至少一个为N。
在某些实施方案中,X1、X2同时为N。
在某些实施方案中,X1为N。
在某些实施方案中,X1、X2同时为N,Z1、Z2为C。在某些实施方案中,X1为N,X2、Z1、Z2为C。
在某些实施方案中,R1选自H、卤素;优选的,R1选自H。
在某些实施方案中,R1选自H。
在某些实施方案中,环A选自含有0-3个N原子的六元芳环或芳杂环,其中所述芳环或芳杂环任选被氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、羰基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3或-POR2R3取代;其中R2、R3独立地选自氢、-NH2、-NHCH3、-C1-3烷基。
在某些实施方案中,环A为其中R4为氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3或-POR2R3;R2、R3独立地选自氢、-NH2、-NHCH3、-C1-3烷基,或R2、R3与P一起形成3-8元环。
在某些实施方案中,环A为其中R4为氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3或-POR2R3;R2、R3独立地选自氢、-NH2、-NHCH3、-C1-3烷基,或R2、R3与P一起形成3-8元环。
在某些实施方案中,环A为其中R4为氢、卤素、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3;其中R2、R3独立地选自氢、-NH2、-NHCH3、C1-3烷基。
在某些实施方案中,环A为其中R4为氢、卤素、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3;其中R2、R3独立地选自氢、-NH2、-NHCH3、C1-3烷基。
在某些实施方案中,环A选自:
在某些实施方案中,环B选自含有0-3个选自N、O和S的杂原子的3-10元脂肪环或脂肪杂环,任选地,所述脂肪环或脂肪杂环被卤素、羰基、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-C3-C6环烷基、-C3-C6环杂烷基取代。
在某些实施方案中,环B为:其中,Y选自CH或N;环B被m个R5取代,R5为氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基或C1-C6烷基氨基;m为0-2(n+3)的整数,n为0-6的整数。
在某些实施方案中,n为1-4的整数。
在某些实施方案中,Y为N;n为3;R5为氢或卤素。
在某些实施方案中,环B为:
在一些实施方案中,本发明所述化合物如式II:
其中,X1、X2独立地选自C或N,且至少X1为N;
R1独立地选自H、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3;其中R2、R3独立地选自氢、-NH2、-C1-3烷基;
Y选自CH或N;
R5选自氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基或-C1-C6烷基氨基;
n为0-6的整数;
环A选自含有0-3个N原子的六元芳环或芳杂环,其中所述芳环或芳杂环任选被氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、羰基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3或-POR2R3取代;其中R2、R3独立地选自氢、-NH2、-NHCH3、C1-3烷基。
在一些优选的实施方案中,本发明所述化合物式II中,环A为
其中R4为氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3或-POR2R3;R2、R3独立地选自氢、-NH2、-NHCH3、-C1-3烷基,或R2、R3与P一起形成3-8元环。
在一些实施方案中,本发明所述化合物如式III:
其中,X1、X2独立地选自C或N,且至少X1为N;
R1独立地选自H、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3;其中R2、R3独立地选自氢、NH2、C1-3烷基;
T为CR6或N;
R6为氢、卤素、C1-C6烷基;
R9为氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3或-POR2R3;
R2、R3独立地选自氢、-NH2、-NHCH3、C1-3烷基,或R2、R3与P一起形成3-8元环;
R5选自氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基或-C1-C6烷基氨基;
n为0-6的整数。
在一些优选的实施方案中,本发明所述化合物式III中,Y为N,n为1-4的整数。
在一些优选的实施方案中,本发明所述化合物式III中,n为3。
在一些实施方案中,本发明所述化合物如式IV:
其中,R10、R11独立地选自氢或卤素;
其他取代基定义如前所述。
在一些优选的实施方案中,本发明所述化合物式III中,R1独立地选自H、卤素、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基。
在一些优选的实施方案中,本发明所述化合物式III中,R1独立地选自H、卤素、-CH3、-OCH3。
在一些优选的实施方案中,本发明所述化合物式III中,R1选自H或卤素。
在一些优选的实施方案中,本发明所述化合物式III中,X1为N,X2为C。
在一些优选的实施方案中,本发明所述化合物式III中,X1为N,X2为N。
在一些优选的实施方案中,本发明所述化合物式III中,R6为氢或卤素。
在一些优选的实施方案中,本发明所述化合物式III中,R9为-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3,其中R2、R3独立地选自氢、NH2、NHCH3、C1-3烷基。
在一些实施方案中,本发明所述化合物如式V:
其中,R7、R8独立地选自H、卤素、-CH3、-OCH3;
R9选自-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3;
R2、R3独立地选自氢、-NH2、-NHCH3、-C1-3烷基;
T为CR6或N;
R10、R11独立地选自氢或卤素。
在一些优选的实施方案中,本发明所述化合物式V中,R9选自-SO2NH2、-CONH2。
在一些优选的实施方案中,本发明所述化合物式V中,R9为-SO2NH2。
在一些优选的实施方案中,本发明所述化合物式V中,R7、R8独立地选自H或卤素。
在一些优选的实施方案中,本发明所述化合物式V中,R10、R11均为卤素。
在某些实施方案中,本发明所述化合物具有如下通式结构VI:
其中,Ar1为取代或未取代的五元或六元芳环或芳杂环;
Ar1为取代或未取代的六元芳环或苯环;
X、Y为C或N。
在某些优选的实施方案中,所述Ar1选自含有0-3个N、O、S原子的五元或六元芳环或芳杂环,所述芳环或芳杂环任选被氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、羰基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3或-POR2R3取代;其中R2、R3独立地选自氢、-NH2、-NHCH3、-C1-3烷基。
在某些优选的实施方案中,所述Ar2选自含有0-3个N原子的六元芳环或苯环,所述芳环或苯环任选地被卤素、-NH2、-CN、-OH、-C1-C6烷基、羰基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基。
在某些实施方案中,本发明所述化合物具有如下通式结构VII:
其中,Ar1为取代或未取代的五元或六元芳环或芳杂环;
Ar1为取代或未取代的六元芳环或苯环;
X、Y为C或N。
在某些优选的实施方案中,所述Ar1选自含有0-3个N、O、S原子的五元或六元芳环或芳杂环,所述芳环或芳杂环任选被氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、羰基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3或-POR2R3取代;其中R2、R3独立地选自氢、-NH2、-NHCH3、-C1-3烷基。
在某些优选的实施方案中,所述Ar2选自含有0-3个N原子的六元芳环或苯环,所述芳环或苯环任选地被卤素、-NH2、-CN、-OH、-C1-C6烷基、羰基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基。
在某些实施方案中,本发明所述化合物具有如下通式结构VIII:
其中,Ar1为取代或未取代的五元或六元芳环或芳杂环;
Ar1为取代或未取代的六元芳环或苯环;
X、Y为C或N;
R1为脂肪链、脂肪环或芳香环。
在某些优选的实施方案中,所述Ar1选自含有0-3个N、O、S原子的五元或六元芳环或芳杂环,所述芳环或芳杂环任选被氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、羰基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基。
在某些优选的实施方案中,所述Ar2选自含有0-3个N原子的六元芳环或苯环,所述芳环或苯环任选地被卤素、-NH2、-CN、-OH、-C1-C6烷基、羰基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基。
在某些优选的实施方案中,所述R1为氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基。
在某些实施方案中,本发明所述化合物具有如下通式结构IX:
其中,Ar1为取代或未取代的五元或六元芳环或芳杂环;
Ar1为取代或未取代的六元芳环或苯环;
X、Y为C或N;
R1为脂肪链、脂肪环或芳香环。
在某些优选的实施方案中,所述Ar1选自含有0-3个N、O、S原子的五元或六元芳环或芳杂环,所述芳环或芳杂环任选被氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、羰基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基。
在某些优选的实施方案中,所述Ar2选自含有0-3个N原子的六元芳环或苯环,所述芳环或苯环任选地被卤素、-NH2、-CN、-OH、-C1-C6烷基、羰基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基。
在某些优选的实施方案中,所述R1为氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基。
在某些实施方案中,本发明所述化合物具有如下通式结构X:
其中,Ar1为取代或未取代的五元或六元芳环或芳杂环;
Ar1为取代或未取代的六元芳环或苯环;
X、Y为C或N;
R1为脂肪链、脂肪环或芳香环。
在某些优选的实施方案中,所述Ar1选自含有0-3个N、O、S原子的五元或六元芳环或芳杂环,所述芳环或芳杂环任选被氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、羰基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基。
在某些优选的实施方案中,所述Ar2选自含有0-3个N原子的六元芳环或苯环,所述芳环或苯环任选地被卤素、-NH2、-CN、-OH、-C1-C6烷基、羰基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基。
在某些优选的实施方案中,所述R1为氢、-NH2、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基。
在某些实施方案中,本发明所述化合物具有如下通式结构XI:
其中,Ar1为取代或未取代的五元或六元芳环或芳杂环;
Ar1为取代或未取代的六元芳环或苯环;
X、Y为C或N;
R1为脂肪链、脂肪环或芳香环。
在某些优选的实施方案中,所述Ar1选自含有0-3个N、O、S原子的五元或六元芳环或芳杂环,所述芳环或芳杂环任选被氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、羰基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基。
在某些优选的实施方案中,所述Ar2选自含有0-3个N原子的六元芳环或苯环,所述芳环或苯环任选地被卤素、-NH2、-CN、-OH、-C1-C6烷基、羰基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基。
在某些优选的实施方案中,所述R1为氢、-NH2、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基。
在某些实施方案中,本发明所述化合物选自:
在某些优选实施方案中,本发明所述化合物选自:
本发明的第二目的在于提供一种药物组合物,所述组合物包含本发明第一目的所述的化合物或其药学上可接受的盐,和药学上可接受的载体。
本发明的第三目的在于提供本发明第一目的所述的化合物或其药学上可接受的盐在制备用于治疗疼痛的药物中的用途。
本发明的第四目的在于提供一种预防或治疗疼痛的方法,包括向所述患者给予本发明第一目的所述的化合物或其药学上可接受的盐。
在一些实施方案中,所述疼痛选自慢性疼痛、肠痛、神经性疼痛、肌肉骨骼痛、急性疼痛、炎性疼痛、癌症疼痛、原发性疼痛、手术后疼痛、内脏痛、多发性硬化症、夏-马-图三氏综合症、失禁或心律失常。
附图说明
附图1实施例33方法二中实验电压变化图,其中-80mV为钳制电压,细胞Nav1.8通道在该电压下处于静息状态;10mV为激活电压,细胞Nav1.8通道在该电压下处于激活状态。
附图2实施例36中机械痛觉超敏中试结果图
定义
如本文所用,术语“烷基”自身或作为另一取代基的部分意指(除非另外说明)具有指定碳原子数目的直链或支链烃基(即,C1-8意指一至八个碳)。烷基的实例包括甲基、乙基、正丙基、异丙基、正丁基、叔丁基、异丁基、仲丁基、正戊基、正己基、正庚基、正辛基等。
如本文所用,术语“芳杂环”是指具有5到10个杂环原子,优选5或6元单环芳杂环或8至10元双环芳杂环;且除碳原子外还具有1到3个杂原子的基团。“杂原子”是指氮、氧或硫。
术语“脂肪环”指具有饱和或不饱和键的单环或多环烷烃,优选饱和单环烷烃,例如环丙烷、环丁烷、环戊烷、环己烷、环庚烷。多环烷烃按结合方式的不同,可以分为螺环和桥环。
术语“脂肪杂环”指具除碳原子外还具有一个或多个杂原子的饱和或不饱和键的单环或多环烷烃。杂原子例如氮、氧或硫。
术语“取代”、“被...取代”是指特定原子上的任意一个或多个氢原子被取代基取代,可以包括重氢和氢的变体,只要特定原子的价态是正常的并且取代后的化合物是稳定的。术语“任选被取代的”是指可以被取代,也可以不被取代,除非另有规定,取代基的种类和数目在化学上可以实现的基础上可以是任意的。
此外,虽然未出现“任选被取代的”的术语,但若环(例如脂肪环或芳香环)上出现任意位置的取代,那么应当理解的是取代基的位置和数目是任意的,只要在化学上可以实现。
如本文所用,术语“卤素”自身或作为另一取代基的部分,意指(除非另外说明)氟、氯、溴或碘原子。另外,术语“卤代烷基”意在包括单卤代烷基和多卤代烷基。例如,术语“C1-4卤代烷基”意在包括三氟甲基、2,2,2-三氟乙基、4-氯丁基、3-溴丙基、二氟甲基等。
如本文所用,“烷氧基”代表通过氧桥连接的具有特定数目碳原子的上述烷基,除非另有规定,C1-6烷氧基包括C1、C2、C3、C4、C5和C6的烷氧基。烷氧基的例子包括但不限于:甲氧基、乙氧基、正丙氧基、异丙氧基、正丁氧基、仲丁氧基、叔丁氧基、正戊氧基和S-戊氧基。
除非另有规定,本文所描绘的结构也意味着包括该结构的所有异构(例如对映异构、非对映异构和几何异构(或构象异构))形式;例如每一不对称中心的R与S构型,(Z)与(E)双键异构体,和(Z)与(E)构象异构体。因此,这些化合物的单一立体化学异构体以及对映异构、非对映异构和几何异构(或构象异构)混合物都属于本发明的范围。除非另有规定,本发明化合物的所有互变异构形式都属于本发明的范围。另外,除非另有规定,本文所描绘的结构也意味着包括仅在一个或多个同位素富集原子的存在上有所不同的化合物。例如,除了氢被氘或氚代替或者碳被13C-或14C-富集的碳代替以外具有本发明结构的化合物都属于本发明的范围。
除非另有规定,本文所描绘的结构也意味着包括该结构的溶剂化物,溶剂化物指本申请化合物与一个或多个溶剂分子的物理缔合;该物理缔合涉及各种程度的离子键和共价键,其包括氢键;在某些情况下,例如当将一个或多个溶剂分子引入到结晶固体的晶格中时,溶剂化物将能够被分离;“溶剂化物”涵盖溶液相和可分离的溶剂化物;合适的溶剂非限制性实例包括但不限于异丙醇、乙醇、甲醇、DMSO、乙酸乙酯、乙酸和乙醇胺等;“水合物”为其中溶剂分子为H2O的溶剂化物。
如本文所用,术语“组合物”意欲涵盖包含规定量的规定成分的产品,以及直接或间接源于规定量的规定成分的组合的任何产品。短语“药学上可接受的”意指载体、稀释剂或赋形剂必须与制剂中的其它成分相容并且对其药物接受者无害。
如本文所用,术语“药学上可接受的盐”意在包括用相对无毒的酸或碱制备活性化合物的盐。当本发明化合物含有相对酸性官能团时,可通过将此类化合物的中性形式与足量的纯的或在合适的惰性溶剂中的所需碱接触获得碱加成盐。衍生自药学上可接受的无机碱的盐的实例包括铝、铵、钙、铜、铁、亚铁、锂、镁、锰盐、亚锰、钾、钠、锌等。衍生自药学上可接受的有机碱的盐包括伯胺、仲胺和叔胺(包括取代的胺、环胺、天然存在的胺等)的盐,诸如精氨酸、甜菜碱、咖啡因、胆碱、N,N'-二苄基乙二胺、二乙胺、2-二乙基氨基乙醇、2-二甲基氨基乙醇、乙醇胺、乙二胺、N-乙基吗啉、N-乙基哌啶、葡糖胺、葡萄糖胺、组氨酸、异丙基胺、赖氨酸、甲基葡糖胺、吗啉、哌嗪、哌啶、聚胺树脂、普鲁卡因、嘌呤、可可碱、三乙胺、三甲胺、三丙胺、氨丁三醇等。当本发明化合物含有相对碱性官能团时,可通过将此类化合物的中性形式与足量的纯的或在合适的惰性溶剂中的所需酸接触获得酸加成盐。药学上可接受的酸加成盐的实例包括衍生自无机酸如盐酸、氢溴酸、硝酸、碳酸、一氢碳酸、磷酸、一氢磷酸、二氢磷酸、硫酸、一氢硫酸、氢碘酸或亚磷酸等,以及衍生自相对无毒的有机酸如乙酸、丙酸、异丁酸、丙二酸、苯甲酸、琥珀酸、辛二酸、富马酸、扁桃酸、邻苯二甲酸、苯磺酸、对甲苯磺酸、柠檬酸、酒石酸、甲烷磺酸等的盐。还包括氨基酸诸如精氨酸等的盐以及有机酸如葡糖醛酸或半乳糖醛酸。
术语“药学上可接受的载体”是指能够递送本发明有效量活性物质、不干扰活性物质的生物活性并且对宿主或者患者无毒副作用的任何制剂或载体介质代表性的载体包括水、油、蔬菜和矿物质、膏基、洗剂基质、软膏基质等。这些基质包括悬浮剂、增粘剂、透皮促进剂等。它们的制剂为化妆品领域或局部药物领域的技术人员所周知。
包含式I化合物的组合物通常根据作为药物组合物的标准药学实践配制。典型的制剂通过将本发明化合物与稀释剂、载体或赋形剂混合制备。制剂还可以包括缓冲剂、稳定剂、表面活性剂、湿润剂、润滑剂、乳化剂、悬浮剂、防腐剂、抗氧化剂、不透明剂、助流剂、加工助剂、着色剂、增甜剂、芳香剂、调味剂、稀释剂和其它已知的添加剂中的一种或多种。
本发明化合物可以以任何便利的使用形式被施用,如片剂、粉末、胶囊、溶液、分散体、悬浮液、糖浆剂、喷雾剂、栓剂、凝胶剂、乳剂、贴剂等。此类组合物可以包含药物制剂中常规的组分,如稀释剂、载体、pH调节剂、增甜剂、填充剂和另外的活性剂。
本发明化合物可以通过任何合适的方式施用,包括口服、局部(包括颊部和舌下)、直肠、阴道、透皮、肠胃外、皮下、腹膜内、肺内、皮肤内、鞘内和硬膜外以及鼻内,并且,如果需要用于局部治疗,病灶内施用。肠胃外输注包括肌肉内、静脉内、动脉内、腹膜内、大脑内、眼内、病灶内或皮下施用。
本发明的“疼痛”指与电压门控钠通道异常相关的疼痛,特别地,电压门控钠通道是Nav1.8。本发明的疼痛包括但不限于慢性疼痛、肠痛、神经性疼痛、肌肉骨骼痛、急性疼痛、炎性疼痛、癌症疼痛、原发性疼痛、手术后疼痛、内脏痛、多发性硬化症、夏-马-图三氏综合症、失禁和心律失常。
其中肠痛例如炎性肠病疼痛、克罗恩病疼痛或间质膀胱炎疼痛。肌肉骨骼痛例如骨关节炎痛,背痛,冷痛,灼痛或牙痛。炎性疼痛例如类风湿性关节炎疼痛或外阴痛,特发性疼痛包含纤维肌痛。神经性疼痛例如疱疹后神经痛,糖尿病性神经痛,疼痛性HIV相关性感觉神经病,三叉神经痛,口灼伤综合征,切断术后疼痛,幻觉痛,疼痛性神经瘤;创伤性神经瘤;Morton神经瘤;神经卡压损伤,椎管狭窄,腕管综合征,神经根痛,坐骨神经痛;神经撕脱损伤,臂丛撕脱损伤;复合性局部疼痛综合征,药物治疗诱导的神经痛,癌症化疗诱导的神经痛,抗逆转录病毒疗法诱导的神经痛;脊髓损伤后疼痛,特发性小纤维神经病,特发性感觉神经病或三叉。
本发明的化合物经人工或者Chemdraw软件命名,市售化合物采用供应商目录名称。
与现有技术相比,本发明的主要优点在于:
提供了一系列结构新颖的并环类化合物,其对Nav1.8具有抑制活性,可用作广泛疼痛治疗的药物。
具体实施方式
下面结合具体实施例,进一步阐述本发明。应理解,这些实施例仅用于说明本发明而不用于限制本发明的范围。下列实施例中未注明具体条件的实验方法,通常按照常规条件或按照制造厂商所建议的条件。实施例(制备)中描述的化学反应可容易地被修改以制备许多本发明的其它化合物,并且用于制备本发明化合物的替代方法被认为在本发明的范围内。除非另行定义,本文所用的术语与本领域熟练人员所熟悉的意义相同。此外,任何与所记载内容相似或同等的方法及材料皆可应用于本发明中。
化合物的结构是通过核磁共振(NMR)和/或质谱(MS)来确定的。NMR位移(δ)以10-6(ppm)的单位给出。NMR的中定采用Bruker AVANCE III HD(400MHz)或Bruker NEO(400MHz)核磁仪,溶剂为氘代二甲基亚砜(DMSO-d6)或氘代氯仿(CDCl3),内标为四甲基硅烷(TMS)。MS的中定采用液质联用(LC-MS):岛津的LC-20AD/LCMS-2020或安捷伦的Agilent 1260/6125。高效液相(HPLC)分析采用岛津的LC-20AD或LC-2030C,或安捷伦的Agilent 1100/1200。制备纯化采用的是waters2767或gilson GX281。
实施例1
3-(3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺基)吡啶-1-氧化物(KH01)的制备
步骤a):3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酸乙酯的制备
向3-喹喔啉-2-甲酸乙酯(5g,21.2mmol)的异丙醇(150mL)溶液中加入4,4-二氟氮杂环庚烷盐酸盐(4.3g,25.4mmol)和DIEA(8.2g,63.5mmol),于50℃下搅拌16h。待反应液恢复至室温后加入乙酸乙酯稀释,加水分相,有机相用饱和盐水洗涤两次,无水硫酸钠干燥,抽滤,将滤液减压浓缩。所得粗品经硅胶柱层析纯化后得浅黄色固体3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酸乙酯(6.2g,收率73%)。ESI-MS(m/z):336.0[M+H]+。
步骤b):3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酸的制备
向3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酸乙酯(6g,17.8mmol)的水(20mL)/甲醇(60mL)/四氢呋喃(5mL)混合溶液中缓慢加入氢氧化锂(3.7g,89.2mmol),于50℃下反应2.5h。反应完全后,用冰水淬灭,加入1M的稀盐酸调节pH至7左右,再用乙酸乙酯萃取有机相,饱和食盐水洗涤,无水硫酸钠干燥,抽滤。将滤液旋干后得黄色固体3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酸(4g,收率74%)。1H NMR(400MHz,DMSO-d6)δ7.81(d,J=8.2Hz,1H),7.67-7.55(m,2H),7.47-7.34(m,1H),3.78-3.72(m,2H),3.64(t,J=6.0Hz,2H),2.36-2.34(m,2H),2.13-1.97(m,2H),1.94-1.83(m,2H)。ESI-MS(m/z):308.1[M+H]+。
步骤c):3-(4,4-二氟氮杂-1-基)-N-(吡啶-3-基)喹喔啉-2-甲酰胺的制备
将3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酸(500mg,1.6mmol)溶于DMF(5mL)中,加入DIEA(420.5mg,3.2mmol)和HATU(928mg,2.4mmol),在室温下搅拌1h后,加入吡啶-3-胺(183.7mg,1.9mmol)继续反应2h。加入10mL饱和NH4Cl水溶液淬灭反应,用二氯甲烷(20mL*3)进行萃取,分离出有机相并用饱和食盐水洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩。所得粗品经正相制备色谱纯化后得黄色固体3-(4,4-二氟氮杂-1-基)-N-(吡啶-3-基)喹喔啉-2-甲酰胺(405mg,收率64.9%)。ESI-MS(m/z):382.1[M-H]-。
步骤d):3-(3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺基)吡啶-1-氧化物(KH01)的制备
向3-(4,4-二氟氮杂-1-基)-N-(吡啶-3-基)喹喔啉-2-甲酰胺(200mg,0.5mmol)的二氯甲烷(3mL)溶液中加入间氯过氧苯甲酸(180.0mg,1.0mmol),室温下搅拌16h。反应完全后,加入10mL饱和NaHCO3水溶液,用二氯甲烷(20mL×3)萃取,分离出有机相并用饱和食盐水洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩。所得粗品经反向制备色谱纯化后得黄色固体3-(3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺基)吡啶-1-氧化物(56.42mg,收率27.0%)。1H NMR(400MHz,DMSO-d6)δ11.40(s,1H),8.82(t,J=1.6Hz,1H),8.06(d,J=6.4Hz,1H),7.96(d,J=8.2Hz,1H),7.77-7.69(m,2H),7.63(d,J=9.4Hz,1H),7.55-7.50(m,1H),7.45(dd,J=8.4,6.4Hz,1H),3.83-3.73(m,2H),3.61(t,J=5.8Hz,2H),2.40(brs,2H),2.03(t,J=16.6Hz,2H),1.93(d,J=5.4Hz,2H)。ESI-MS(m/z):400.0[M+H]+。
实施例2
N-(3-氨甲酰基-4-氟苯基)-3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺(KH02)的制备
N-(3-氨甲酰基-4-氟苯基)-3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺的合成过程与实施例1的步骤a-c相同,只是将步骤c中的吡啶-3-胺换成5-氨基-2-氟苯酰胺,得白色固体N-(3-氨甲酰基-4-氟苯基)-3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺(67.41mg,收率35.9%)。1H NMR(400MHz,CDCl3)δ9.58(s,1H),8.36-8.27(m,1H),8.14(dd,J=6.6,2.9Hz,1H),7.92(dd,J=8.3,0.8Hz,1H),7.74(d,J=7.7Hz,1H),7.71-7.63(m,1H),7.47-7.30(m,1H),7.21(dd,J=11.3,9.0Hz,1H),6.76(d,J=11.3Hz,1H),5.95(s,1H),3.96-3.84(m,2H),3.63(d,J=5.1Hz,2H),2.55-2.38(m,2H),2.02(dd,J=12.3,8.2Hz,4H)。ESI-MS(m/z):444.1[M+H]+。
实施例3
3-(4,4-二氟氮杂-1-基)-N-(2-羰基-1,2-二氢吡啶-4-基)喹喔啉-2-甲酰胺(KH03)的制备
3-(4,4-二氟氮杂-1-基)-N-(2-甲氧基吡啶-4-基)喹喔啉-2-甲酰胺的合成过程与实施例1的步骤a-c相同,只是将步骤c中的吡啶-3-胺换成2-甲氧基吡啶-4-胺即可。
向3-(4,4-二氟氮杂-1-基)-N-(2-甲氧基吡啶-4-基)喹喔啉-2-甲酰胺(190mg,0.605mmol)的四氢呋喃(4mL)溶液中加入碘化钠(181.5mg,1.21mmol)、三甲基氯硅烷(131mg,1.21mmol),于50℃下反应16h。待反应完全后,加水淬灭,并用乙酸乙酯萃取,所得有机相用饱和食盐水洗涤,无水硫酸钠干燥,抽滤,减压浓缩。所得粗品通过C18反向柱甲酸制备,得淡黄色固体粉末3-(4,4-二氟氮杂-1-基)-N-(2-羰基-1,2-二氢吡啶-4-基)喹喔啉-2-甲酰胺(67.1mg,收率37%)。1H NMR(400MHz,DMSO-d6)δ11.38(br s,1H),11.07(s,1H),7.95(d,J=8.2Hz,1H),7.71(d,J=3.5Hz,2H),7.56-7.45(m,1H),7.38(d,J=7.1Hz,1H),6.87(s,1H),6.50(d,J=7.1Hz,1H),3.77(d,J=2.5Hz,2H),3.62(br s,2H),2.39(brs,2H),2.03(br s,2H),1.93(d,J=5.1Hz,2H)。ESI-MS(m/z):400.1[M+H]+。
实施例4
3-(4,4-二氟氮杂-1-基)-N-(6-羰基-1,6-二氢哒嗪-4-基)喹喔啉-2-甲酰胺(KH04)的制备
步骤a):6-甲氧基-哒嗪-4-胺的制备
在0℃下向6-氯-哒嗪-4-胺(850mg,6.589mmol)的甲醇(20mL)溶液中加入甲醇钠(1.78g,32.9mmol),于75℃下搅拌16h。待反应液冷却至室温后抽滤,将滤液减压浓缩,所得粗品经硅胶柱层析纯化后得白色固体6-甲氧基-哒嗪-4-胺(780mg,收率94%)。1H NMR(400MHz,DMSO-d6)δ8.26(d,J=1.5Hz,1H),6.33(s,2H),5.97(d,J=1.4Hz,1H),3.87(s,3H)。ESI-MS(m/z):126.1[M+H]+。
步骤b):3-(4,4-二氟氮杂-1-基)-N-(6-甲氧基哒嗪-4-基)喹喔啉-2-甲酰胺的制备
3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酸的合成见实施例1的步骤a-b。
向3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酸(200mg,0.651mmol)的DMF(5mL)溶液中,加入HATU(297mg,0.781mmol)和DIEA(210mg,1.628mmol),于室温下反应0.5h后,加入6-甲氧基-哒嗪-4-胺(163mg,0.1.302mmol),于室温下反应16h。反应完全后,加水淬灭,用乙酸乙酯萃取有机相(20mL),饱和食盐水洗涤,无水硫酸钠干燥,抽滤。将滤液减压浓缩,所得粗品经硅胶板纯化(乙酸乙酯/石油醚(v/v)=1/1)后得淡黄色油状物3-(4,4-二氟氮杂-1-基)-N-(6-甲氧基哒嗪-4-基)喹喔啉-2-甲酰胺(55mg,收率20%)。1H NMR(400MHz,DMSO-d6)δ11.65(s,1H),9.13(s,1H),7.95(s,1H),7.74(d,J=13.5Hz,2H),7.63(s,1H),7.52(s,1H),4.05(s,3H),3.77(br s,2H),3.58(t,J=5.6Hz,2H),2.39(br s,2H),2.00(d,J=12.4Hz,2H),1.92(d,J=4.7Hz,2H)。ESI-MS(m/z):415.1[M+H]+。
步骤c):3-(4,4-二氟氮杂-1-基)-N-(6-羰基-1,6-二氢哒嗪-4-基)喹喔啉-2-甲酰胺(KH04)的制备
向3-(4,4-二氟氮杂-1-基)-N-(6-甲氧基哒嗪-4-基)喹喔啉-2-甲酰胺(55mg,0.133mmol)的四氢呋喃(4mL)溶液中加入碘化钠(50mg,0.332mmol)和三甲基氯硅烷(36mg,0.332mmol),于50℃下反应16h,反应完全后,加水淬灭,用乙酸乙酯萃取有机相(20mL),饱和食盐水洗涤,无水硫酸钠干燥,抽滤。将滤液减压浓缩,所得粗品通过C18反向柱在甲酸条件下制备,得淡黄色固体粉末3-(4,4-二氟氮杂-1-基)-N-(6-羰基-1,6-二氢哒嗪-4-基)喹喔啉-2-甲酰胺(13.2mg,收率25%)。1H NMR(400MHz,DMSO-d6)δ12.89(s,1H),11.45(s,1H),8.09(d,J=2.3Hz,1H),7.96(d,J=8.1Hz,1H),7.73-7.72(m,2H),7.52(ddd,J=8.3,5.6,2.8Hz,1H),7.33(d,J=2.0Hz,1H),3.79-3.74(m,2H),3.57(br s,2H),2.40(br s,2H),2.05-2.00(m,2H),1.93(br s,2H)。ESI-MS(m/z):401.1[M+H]+。
实施例5
N-(2-氨甲酰基吡啶-4-基)-3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺(KH05)的制备
步骤a):4-氨基-2-氰基吡啶的制备
向4-硝基-2-氰基吡啶(1g,6.7mmol)的乙醇(100mL)/水(10mL)混合溶液中加入铁粉(1.88g,33.5mmol)和氯化铵(1.78g,33.5mmol),于60℃下搅拌2h。待反应液恢复至室温后抽滤,滤液加水淬灭,用乙酸乙酯萃取有机相,饱和盐水洗涤,无水硫酸钠干燥,抽滤,减压浓缩。所得粗品经硅胶柱层析纯化(甲醇/二氯甲烷(v/v)=1/40)得白色固体4-氨基-2-氰基吡啶(400mg,收率51%)。1H NMR(400MHz,DMSO-d6)δ8.07(d,J=5.7Hz,1H),6.95(d,J=2.3Hz,1H),6.69(dd,J=5.7,2.3Hz,1H),6.60(s,2H)。ESI-MS(m/z):120.2[M+H]+。
步骤b):4-氨基-2-氨甲酰基吡啶的制备
向4-氨基-2-氰基吡啶(400mg,3.36mmol)的二甲亚砜(10mL)溶液中加入碳酸铯(1.65g,10.08mmol),于0℃下缓慢加入30%双氧水(0.5mL),室温反应4h。反应完全后,加入冰水淬灭,并用乙酸乙酯萃取有机相,饱和食盐水洗涤,无水硫酸钠干燥,抽滤。将滤液减压浓缩,所得粗品经反相制备色谱纯化得4-氨基-2-氨甲酰基吡啶(300mg,收率65%)。1H NMR(400MHz,DMSO-d6)δ8.01(d,J=5.5Hz,1H),7.89(s,1H),7.39(s,1H),7.21(d,J=2.3Hz,1H),6.58(dd,J=5.5,2.4Hz,1H),6.28(s,2H)。ESI-MS(m/z):308.1[M+H]+。
步骤c):N-(2-氨甲酰基吡啶-4-基)-3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺(KH05)的制备
3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酸的合成见实施例1的步骤a-b。
向3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酸(224mg,0.730mmol)的N,N-二甲基甲酰胺(5mL)溶液中加入2-(7-偶氮苯并三氮唑)-N,N,N',N'-四甲基脲六氟磷酸酯(HATU)(333mg,0.8795mmol),N,N-二异丙基乙胺(188mg,1.459mmol),于室温下反应0.5h,再加入4-氨基-2-氨甲酰基吡啶(110mg,0.803mmol),室温下反应16h。反应完全后,加水淬灭,用乙酸乙酯萃取有机相,饱和食盐水洗涤,无水硫酸钠干燥,抽滤,减压浓缩。所得粗品经制备色谱纯化得淡黄色固体粉末N-(2-氨甲酰基吡啶-4-基)-3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺(25.6mg,收率8.3%)。1H NMR(400MHz,DMSO-d6)δ11.55(s,1H),8.58(d,J=5.4Hz,1H),8.45(s,1H),8.13(s,1H),8.03-7.91(m,2H),7.77-7.71(m,2H),7.68(s,1H),7.55-7.48(m,1H),3.88-3.76(m,2H),3.63(t,J=5.7Hz,2H),2.40(br s,2H),2.10-2.01(m,2H),1.93(d,J=5.4Hz,2H)。ESI-MS(m/z):427.1[M+H]+。
实施例6
N-(2-氨磺酰基吡啶-4-基)-3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺(KH06)的制备
步骤a):2-苄硫醚基-4-溴吡啶的制备
将苄硫醇(3g,24.1mmol)的四氢呋喃(50mL)溶液置于冰水浴中,分批加入NaH(1.45g,60.4mmol,60%),加完后恢复室温搅拌1h,再加入4-溴-2-氟吡啶(4.5g,25.5mmoL)继续反应2h。待反应完全后,将反应液减压浓缩,在冰水浴条件下加入20mL饱和NH4Cl水溶液,用二氯甲烷(20mL×3)萃取,分离出有机相并用饱和食盐水洗涤,无水硫酸钠干燥,抽滤。将滤液减压浓缩,所得粗品经正相色谱纯化(石油醚/乙酸乙酯(v/v)=4/1)后得无色油状物2-苄硫醚基-4-溴吡啶(5.8g,收率85.6%)。ESI-MS(m/z):281.9[M+2]+。
步骤b):4-溴吡啶-2-磺酰氯的制备
向2-苄硫醚基-4-溴吡啶(2g,7.1mmol)的二氯甲烷(28mL)溶液中再加入水(8mL)和乙酸(4mL),将反应体系降温至0℃,分批加入1,3-二氯-5,5-二甲基咪唑啉-2,4-二酮(4.22g,21.4mmol),加完后恢复室温搅拌16h。待反应完全后将反应体系置于冰水浴中,加入20mL饱和NaHCO3水溶液淬灭反应,用二氯甲烷(20mL×3)萃取,分离出有机相并用饱和食盐水洗涤,无水硫酸镁干燥,抽滤,减压浓缩后得米色半油状物4-溴吡啶-2-磺酰氯(4.78g,粗品)。ESI-MS(m/z):253.9[M+MeO-+2]+。
步骤c):3-溴-N,N-二(2,4-二甲氧基苄基)苯磺酰胺的制备
将4-溴吡啶-2-磺酰氯(2g,7.8mmol)溶于二氯甲烷(20mL)中,在冰水浴条件下加入DIEA(5.04g,38.9mmol),然后分批加入二(2,4-二甲氧基苄)胺(3.71g,11.7mmol),加完后恢复室温搅拌4h。待反应完全后,加入20mL饱和NH4Cl水溶液淬灭反应体系,用二氯甲烷(25mL×3)进行萃取,分离出有机相并用饱和食盐水洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩。所得粗品经正相色谱纯化(石油醚/乙酸乙酯(v/v)=4/1)后得浅棕色糖状物3-溴-N,N-二(2,4-二甲氧基苄基)苯磺酰胺的制备(860mg,收率20.5%)。LCMS(ESI,m/z):560.9[M+Na+2]+。1H NMR(400MHz,DMSO-d6)δ8.51(d,J=5.2Hz,1H),7.86-7.82(m,1H),7.60(d,J=1.8Hz,1H),7.08(d,J=8.4Hz,2H),6.45(dd,J=8.4,2.3Hz,2H),6.35(d,J=2.3Hz,2H),4.43(s,4H),3.73(s,6H),3.61(s,6H)。ESI-MS(m/z):560.9[M+Na++2]+。
步骤d):N-(2-(N,N-二(2,4-二甲氧基苄基)胺磺酰基)吡啶-4-基)-3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺的制备
将3-溴-N,N-二(2,4-二甲氧基苄基)苯磺酰胺(140 mg,0.26 mmol)溶于甲苯(2mL),再加入3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺(87.7 mg,0.28 mmol)和Cs2CO3(254.6 mg,0.78 mmol),在此之后加入Ruphos Pd G2(20.2 mg,0.026 mmol),用氮气置换反应体系后在110℃条件下反应16 h。待反应完全后,将反应体系冷却至室温,减压浓缩,加入10 mL饱和NH4Cl水溶液,用二氯甲烷(25 mL×3)进行萃取,分离出有机相并用饱和食盐水洗涤,无水硫酸钠干燥,抽滤。将滤液减压浓缩,所得粗品经正相色谱纯化(石油醚/乙酸乙酯(v/v)=3/1)得黄色固体N-(2-(N,N-二(2,4-二甲氧基苄基)胺磺酰基)吡啶-4-基)-3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺(116.8 mg,收率58.7%)。ESI-MS(m/z):763.1[M+H]+。
步骤e):N-(2-氨磺酰基吡啶-4-基)-3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺(KH06)的制备
将N-(2-(N,N-二(2,4-二甲氧基苄基)胺磺酰基)吡啶-4-基)-3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺(110 mg,0.14 mmol)溶于二氯甲烷(2 mL)中,再加入三氟乙酸(1mL),加完后室温搅拌2 h。待反应完成后,加入10 mL饱和NaHCO3水溶液,用二氯甲烷(25 mL×3)进行萃取,分离出有机相并用饱和食盐水洗涤,用无水硫酸钠干燥,抽滤,将滤液减压浓缩。所得粗品经反相色谱纯化后得到黄色固体N-(2-氨磺酰基吡啶-4-基)-3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺(31.17 mg,收率46.7%)。1H NMR(400 MHz,DMSO-d6)δ11.71(s,1H),8.66(d,J=5.4 Hz,1H),8.40(d,J=1.7 Hz,1H),7.96(d,J=8.1 Hz,1H),7.93(dd,J=5.5,2.0 Hz,1H),7.77-7.71(m,2H),7.55-7.51(m,1H),7.50(d,J=4.2 Hz,2H),3.86-3.74(m,2H),3.61(t,J=5.7Hz,2H),2.40(br s,2H),2.05(d,J=19.4 Hz,2H),1.93(d,J=5.4 Hz,2H)。ESI-MS(m/z):463.0[M+H]+。
步骤f):3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺的制备
3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酸的合成见实施例1的步骤a-b。
向3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酸(200mg,0.6mmol)的DMF(5mL)溶液中加入HATU(371.2mg,0.9mmol)和DIEA(420.5mg,3.2mmol),半小时后加入NH4Cl(139.2mg,2.6mmol),室温搅拌2h。加入水(15mL)淬灭反应,再用二氯甲烷(20mL×3)萃取反应体系,分离出有机相并用饱和食盐水洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩。所得粗品经正相色谱纯化(二氯甲烷/甲醇(v/v)=20/1)得黄色固体3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺(160mg,收率80.2%)。1H NMR(400MHz,DMSO-d6)δ8.25(br s,1H),7.85(d,J=7.2Hz,2H),7.65(d,J=3.9Hz,2H),7.45-7.40(m,1H),3.84-3.73(m,2H),3.68(t,J=5.8Hz,2H),2.39(d,J=10.3Hz,2H),2.11-1.88(m,4H)。ESI-MS(m/z):306.9[M+H]+。
实施例7
N-(3-氨甲酰基苯基)-3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺(KH07)的制备
操作过程同实施例1的步骤a-c,只是将吡啶-3-胺换成3-氨基苯甲酰胺,反应完后用乙酸乙酯萃取,得白色固体N-(3-氨甲酰基苯基)-3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酰胺(50mg,收率12.1%)。1H NMR(400MHz,CDCl3)δ11.10(s,1H),8.24(s,1H),8.02(br s,1H),7.94(dd,J=16.2,8.1Hz,2H),7.73(d,J=4.0Hz,2H),7.66(d,J=7.8Hz,1H),7.51-7.48(m,2H),7.42(br s,1H),3.89–3.76(m,2H),3.71(t,J=5.8Hz,2H),2.41-2.38(m,2H),2.13–2.04(m,2H),1.95-1.92(m,2H)。ESI-MS(m/z):425.9[M+H]+。
实施例8
N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)喹啉-3-甲酰胺(KH08)的制备
步骤a):2-氯喹啉-3-甲酸的制备
将NaClO2(11.8g,130.9mmol)和Na2H2PO4(18.5g,130.9mmol)溶于水(10mL)中,0℃下加入2-氯喹林-3-甲醛(5g,26.1mmol)的叔丁醇溶液,室温下搅拌16h。反应完成后,加水稀释,用1M的HCl溶液调节反应液pH至3-4。过滤,洗涤滤渣得浅黄色固体2-氯喹啉-3-甲酸(2.8g,收率52%)。1H NMR(400MHz,DMSO-d6)δ8.86(s,1H),8.16(d,J=8.0Hz,1H),8.00(d,J=8.4Hz,1H),7.92(dd,J=11.2,4.1Hz,1H),7.72(t,J=7.5Hz,1H)。ESI-MS(m/z):208.1[M+H]+。
步骤b):2-氯喹啉-3-甲酸乙酯的制备
向2-氯喹啉-3-甲酸(2.8g,13.5mmol)的DMF(20mL)溶液中分别加入K2CO3(3.7g,27mmol)和碘乙烷(4.2g,27mmol),室温下搅拌16h。反应完成后,加水稀释,用乙酸乙酯萃取反应体系(100mL×3),合并有机相并用饱和食盐水洗涤3次,减压旋蒸除去溶剂,所得粗品经硅胶柱层析(石油醚/乙酸乙酯(v/v)=3/1)纯化后得浅黄色固体2-氯喹啉-3-甲酸乙酯(2.3g,收率72%)。1H NMR(400MHz,CDCl3)δ8.95-8.50(m,1H),8.07(t,J=13.4Hz,1H),7.90(d,J=8.2Hz,1H),7.86-7.80(m,1H),7.68-7.55(m,1H),4.48(q,J=7.1Hz,2H),1.46(t,J=7.1Hz,3H)。ESI-MS(m/z):236.1[M+H]+。
步骤c):2-(4,4-二氟氮杂-1-基)喹啉-3-甲酸乙酯的制备
向2-氯喹啉-3-甲酸(2.3g,9.7mmol)的NMP(15mL)溶液中分别加入4-二氟氮杂环庚烷盐酸盐(1.9g,11.64mmol)和DIEA(3.75g,29.1mmol),140℃下搅拌16h。反应完成后,冷却至室温,加入100mL水稀释,再用乙酸乙酯萃取反应液(100mL×3),合并有机相并用饱和食盐水洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩,所得粗品经硅胶柱层析(石油醚/乙酸乙酯(v/v)=5/1)纯化后得浅黄色油状物2-(4,4-二氟氮杂-1-基)喹啉-3-甲酸乙酯(2g,收率61%)。1H NMR(400MHz,CDCl3)δ8.31(s,1H),7.68(dd,J=10.6,8.7Hz,2H),7.60-7.56(m,1H),7.25-7.21(m,1H),4.40(q,J=7.1Hz,2H),3.88-3.74(m,2H),3.48(t,J=5.6Hz,2H),2.58-2.40(m,2H),1.98(dd,J=8.7,4.1Hz,4H),1.42(t,J=7.1Hz,3H)。ESI-MS(m/z):335.0[M+H]+。
步骤d):2-(4,4-二氟氮杂-1-基)喹啉-3-甲酸的制备
向2-(4,4-二氟氮杂-1-基)喹啉-3-甲酸乙酯(2g,6.0mmol)的甲醇/水(10mL/2mL)溶液中加入氢氧化锂(288mg,12mmol),室温反应16h。反应完全后用1M的HCl溶液调节反应体系pH至3-4,再用乙酸乙酯(50mL×3)萃取,合并有机相并用饱和食盐水(50mL)洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩得黄色固体2-(4,4-二氟氮杂-1-基)喹啉-3-甲酸(1.4g,收率70%),直接用于下一步。ESI-MS(m/z):306.9[M+H]+。
步骤e):N-(2-甲酸甲酯吡啶-4-基)-2-(4,4-二氟氮杂-1-基)喹啉-3-甲酰胺的制备
在0℃下向2-(4,4-二氟氮杂-1-基)喹啉-3-甲酸(500mg,1.63mmol)中加入草酰氯(621mg,4.89mmol)和一滴DMF,室温下反应1h。将反应液减压浓缩,所得粗品溶于4mL二氯甲烷中,加入三乙胺(823mg,8.15mmol)和4-氨基吡啶-2-甲酸甲酯(300mg,1.95mmol),室温下反应16h。反应完全后加水稀释,再用乙酸乙酯(30mL×3)萃取,合并的有机相用饱和食盐水(50mL)洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩得到黄色固体N-(2-甲酸甲酯吡啶-4-基)-2-(4,4-二氟氮杂-1-基)喹啉-3-甲酰胺(300mg,收率41%)直接用于下一步。ESI-MS(m/z):441.2[M+H]+。
步骤f):N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)喹啉-3-甲酰胺(KH08)的制备
将N-(2-甲酸甲酯吡啶-4-基)-2-(4,4-二氟氮杂-1-基)喹啉-3-甲酰胺(300mg,0.68mmol)溶于3mL乙腈中,加入氯化铵(6.3mg,0.12mmol),以及1.8mL氨水,室温反应3h。反应完全后浓缩反应体系,所得粗品经Prep-HPLC纯化得到白色固体N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)喹啉-3-甲酰胺(50mg,收率17.3%)。1H NMR(400MHz,DMSO-d6)δ11.20(s,1H),8.56(d,J=5.5Hz,1H),8.48-8.33(m,2H),8.11(br s,1H),7.95-7.80(m,2H),7.65(d,J=3.6Hz,3H),7.32-7.30(m,1H),3.80-3.67(m,2H),3.57(t,J=5.8Hz,2H),2.43-2.31(m,2H),2.01-1.98(m,2H),1.89(d,J=5.4Hz,2H)。ESI-MS(m/z):425.9[M+H]+。
实施例9
N-(3-氨甲酰基-4-氟苯基)-2-(4,4-二氟氮杂-1-基)喹啉-3-甲酰胺(KH09)的制备
2-(4,4-二氟氮杂-1-基)喹啉-3-甲酸的合成见实施例8中步骤a-d。
向(4,4-二氟氮杂-1-基)喹啉-3-甲酸(200mg,0.598mmol)的DMF(5mL)溶液中,加入HATU(296mg,0.778mmol)、5-氨基-2-氟苯甲酰胺(92.2mg,0.598mmol)和DIEA(231mg,1.796mmol),于室温下反应16h。反应完全后,加水淬灭,并用乙酸乙酯萃取有机相(20mL×3),饱和食盐水洗涤,无水硫酸钠干燥,将滤液减压浓缩,所得粗品经Prep-HPLC制备得白色固体粉末N-(3-氨甲酰基-4-氟苯基)-2-(4,4-二氟氮杂-1-基)喹啉-3-甲酰胺(108.7mg,收率41%)。1H NMR(400MHz,DMSO-d6)δ10.79(s,1H),8.32(s,1H),8.03(dd,J=6.4,2.7Hz,1H),7.86(d,J=4.4Hz,1H),7.84(d,J=3.6Hz,1H),7.68(br s,2H),7.64(br s,2H),7.30(dd,J=11.9,7.2Hz,2H),3.76(d,J=4.8Hz,2H),3.62(t,J=5.8Hz,2H),2.40(br s,2H),2.00(br s,2H),1.89(d,J=4.9Hz,2H)。ESI-MS(m/z):443.2[M+H]+。
实施例10
N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酰胺(KH10)的制备
步骤a):2-氯-6,7-二氟喹啉-3-甲酸的制备
在冰水浴下,将硝酸银(1.2g,7.02mmol)溶解于预先配置的NaOH(0.88g,22mmol)的乙醇/水(12mL/3mL)溶液中,室温下缓慢滴入2-氯-6,7-二氟喹啉-3-甲醛(1g,4.39mmol)的乙醇(10mL)溶液,搅拌16h。反应完成后将反应液过滤,用1M盐酸调节pH至6,再用乙酸乙酯(50mL×3)萃取,饱和食盐水(30mL×2)洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩,得到白色固体2-氯-6,7-二氟喹啉-3-甲酸(1.0g,收率93.46%)。
ESI-MS(m/z):244.0[M+H]+。
步骤b):2-氯-6,7-二氟喹啉-3-甲酸乙酯的制备
将2-氯-6,7-二氟喹啉-3-甲酸(1.0g,4.10mmol)溶于DMF(20mL)中,再加入碘乙烷(1.28g,8.21mmol)和碳酸钾(1.13g,8.21mmol),室温下搅拌16h。加水(100mL)稀释反应液,用乙酸乙酯(50mL×3)萃取,合并有机相,并用饱和食盐水(50mL×2)洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩,所得粗品经正相硅胶柱纯化(石油醚/乙酸乙酯(v/v)=0%~30%)得到白色固体2-氯-6,7-二氟喹啉-3-甲酸乙酯(1.0g,收率89.29%)。
ESI-MS(m/z):281.2[M+H]+。
步骤c):2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酸乙酯的制备
向2-氯-6,7-二氟喹啉-3-甲酸乙酯(1.0g,3.68mmol)的NMP(13mL)溶液中加入4-二氟氮杂环庚烷盐酸盐(0.81g,4.79mmol)和DIEA(1.42g,11.04mmol),140℃下搅拌16h。待反应完成后加水(30mL)稀释淬灭反应体系,并用乙酸乙酯(20mL×3)萃取,合并有机相,再用饱和食盐水洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩,所得粗品经正相硅胶柱(石油醚/乙酸乙酯(v/v)=0%~25%)得到黄色油状物2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酸乙酯(900mg,收率65.93%)。1H NMR(400MHz,CDCl3)δ8.21(s,1H),7.49-7.32(m,2H),4.40(q,J=7.1Hz,2H),3.83-3.74(m,2H),3.45(t,J=5.6Hz,2H),2.53-2.37(m,2H),2.04-1.92(m,4H),1.42(t,J=7.1Hz,3H)。ESI-MS(m/z):371.2[M+H]+。
步骤d):2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酸的制备
先配置甲醇(10mL)、水(10mL)和THF(10mL)混合溶液,将2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酸乙酯(900mg,2.43mmol)加到配置好的混合溶液中,再加入氢氧化锂(612.36mg,14.58mmol),50℃搅拌反应3h.用1M盐酸调节pH到6,用乙酸乙酯(15mL×3)萃取,合并有机相,用饱和食盐水(20mL×2)洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩,得到淡黄色固体2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酸(702.03mg,收率84.38%)。1H NMR(400MHz,DMSO-d6)δ13.42(br s,1H),8.44(s,1H),7.93(dd,J=10.9,9.2Hz,1H),7.53(dd,J=12.3,7.6Hz,1H),3.75–3.67(m,2H),3.49(t,J=5.8Hz,2H),2.46–2.33(m,2H),2.08–1.86(m,4H)。ESI-MS(m/z):343.2[M+H]+。
步骤e):4-(2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酰胺基)吡啶甲酸甲酯的制备
室温下将2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酸(300mg,0.88mmol)溶于二氯甲烷(10mL),再加入DMF(0.05mL),随后缓慢滴加草酰氯(335.09mg,2.64mmol),室温搅拌1h。将反应液减压旋蒸除去溶剂后溶于二氯甲烷(5mL),加入4-氨基吡啶-2-甲酸甲酯(401.68mg,2.64mmol)和三乙胺(445.23mg,4.40mmol),室温搅拌16h。反应完成后用饱和碳酸氢钠溶液淬灭反应体系,二氯甲烷(30mL×3)萃取,合并有机相,并用饱和食盐水洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩。所得粗品经正相硅胶柱(石油醚/乙酸乙酯(v/v)=0%~35%)纯化得到淡黄色固体4-(2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酰胺基)吡啶甲酸甲酯(152mg,收率36.4%)。ESI-MS(m/z):476.8[M+H]+。
步骤f):N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酰胺(KH10)的制备
向4-(2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酰胺基)吡啶甲酸甲酯(150mg,0.315mmol)的乙腈(5mL)溶液中加入氯化铵固体(5mg,0.09mmol)和氨水(5mL),40℃下反应4h后加水(20mL)稀释反应液,并用乙酸乙酯(35mL×3)萃取,饱和食盐水洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩,所得粗品经Prep-HPLC纯化得到白色固体N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酰胺(53.77mg,收率37.0%)。1H NMR(400MHz,DMSO-d6)δ11.26(s,1H),8.56(d,J=5.5Hz,1H),8.45-8.32(m,2H),8.11(d,J=2.2Hz,1H),7.97-7.85(m,2H),7.66(d,J=2.2Hz,1H),7.60(dd,J=12.2,7.6Hz,1H),3.74-3.71(m,2H),3.55(t,J=5.8Hz,2H),2.39-2.38(m,2H),1.97-1.95(m,2H),1.88-1.86(m,2H)。ESI-MS(m/z):462.3[M+H]+。
实施例11
N-(3-胺甲酰基-4-氟苯基)-3-(4,4-二氟氮杂-1-基)喹啉-2-甲酰胺(KH11)的制备
步骤a):3-(4,4-二氟氮杂-1-基)喹啉的制备
向3-氯喹林(3.6g,22mmol)的1,4-二氧六环(30mL)溶液中加入4.4-二氟氮杂环庚烷盐酸盐(4.49g,26.4mmol),Ruphos-Pd-G2(0.513g,0.66mmol),叔丁醇钾(7.4g,66mmol),反应体系在氮气保护下于105℃搅拌16h。待反应完毕加水(100mL)淬灭反应体系,用乙酸乙酯(50mL×3)萃取,合并有机相,并用饱和食盐水(50mL×3)洗涤,无水硫酸钠干燥,过滤,减压浓缩,所得粗品经硅胶柱层析纯化(乙酸乙酯/石油醚(v/v)=1/20)后得黄色固体3-(4,4-二氟氮杂-1-基)喹啉(3g,收率51.7%)。1H NMR(400MHz,DMSO-d6)δ8.73(d,J=2.5Hz,1H),7.82(d,J=8.1Hz,1H),7.72(d,J=7.9Hz,1H),7.45-7.28(m,3H),3.68(d,J=4.9Hz,2H),3.60(t,J=5.8Hz,2H),2.39-2.24(m,2H),2.17-2.02(m,2H),1.97-1.85(m,2H)。ESI-MS(m/z):263.2[M+H]+。
步骤b):3-(4,4-二氟氮杂-1-基)喹啉氮氧化物的制备
向3-(4,4-二氟氮杂-1-基)喹啉(2.6g,9.88mmol)的二氯甲烷(40mL)溶液中缓慢加入间氯过氧苯甲酸(3.4g,19.7mmol),于40℃下反应48h;反应完全后,加水(50mL)淬灭反应体系,用乙酸乙酯(50mL×3)萃取,合并有机相,并用10%的硫代硫酸钠水溶液洗涤两次,再用无水硫酸钠干燥,过滤,减压浓缩,所得粗品经硅胶柱层析纯化(乙酸乙酯/石油醚(v/v)=1/5)后得白色固体3-(4,4-二氟氮杂-1-基)喹啉氮氧化物(1.5g,收率55.5%)。ESI-MS(m/z):279.3[M+H]+。
步骤c):2-溴-3-(4,4-二氟氮杂-1-基)喹啉的制备
向3-(4,4-二氟氮杂-1-基)喹啉氮氧化物(1.5g,5.37mmol)的甲苯(20mL)溶液中加入N-溴代丁二酰亚胺(1.9g,10.7mmol)和三苯基膦(2.83g,10.7mmol)于115℃下反应2h。反应完毕后加水(40mL)淬灭反应体系,用乙酸乙酯(30mL×3)萃取,合并有机相,并用饱和食盐水(30mL×3)洗涤,无水硫酸钠干燥,过滤,减压浓缩。所得粗品经硅胶柱层析纯化(乙酸乙酯/石油醚(v/v)=1/7)后得白色固体2-溴-3-(4,4-二氟氮杂-1-基)喹啉(100mg,收率5.4%)。1H NMR(400MHz,DMSO-d6)δ7.95-7.85(m,2H),7.61-7.55(m,3H),3.29(br s,4H),2.36-2.30(m,4H),1.86(br s,2H)。ESI-MS(m/z):341.2[M+H]+。
步骤d):3-(4,4-二氟氮杂-1-基)喹啉-2-甲酸甲酯的制备
向2-溴-3-(4,4-二氟氮杂-1-基)喹啉(100mg,0.293mmol)的甲醇(20mL)溶液中加入三乙胺(88.8mg,0.879mmol)和Pd(dppf)Cl2(23mg,0.0293mmol),一氧化碳置换气体三次,110℃下在加压釜(4atm)中反应16h;反应完毕后加水(40mL)淬灭反应体系,用乙酸乙酯(20mL×3)萃取,合并有机相,并用饱和食盐水(30mL)洗涤,无水硫酸钠干燥,过滤,减压浓缩;所得粗品经硅胶柱层析纯化(乙酸乙酯/石油醚(v/v)=1/5)后得黄色固体3-(4,4-二氟氮杂-1-基)喹啉-2-甲酸甲酯(55mg,收率58%)。1H NMR(400MHz,DMSO-d6)δ7.98-7.84(m,3H),7.63-7.45(m,2H),3.939(s,3H),3.40-3.34(m,4H),2.33-2.23(m,2H),2.21-2.14(m,2H),1.91-1.83(m,2H)。ESI-MS(m/z):321.3[M+H]+。
步骤e):3-(4,4-二氟氮杂-1-基)喹啉-2-甲酸的制备
向3-(4,4-二氟氮杂-1-基)喹啉-2-甲酸甲酯(55mg,0.178mmol)的水(0.5mL)和四氢呋喃(2mL)的混合溶液中缓慢加入氢氧化锂(25mg,0.601mmol),于室温下反应1h;反应完全后,冰水淬灭,加入1M的稀盐酸调节pH至7。再用乙酸乙酯(10mL×3)萃取,合并有机相,用饱和食盐水洗涤,无水硫酸钠干燥,过滤,减压浓缩后得黄色固体3-(4,4-二氟氮杂-1-基)喹啉-2-甲酸(40mg,收率76%)。ESI-MS(m/z):307.1[M+H]+。
步骤f):N-(3-胺甲酰基-4-氟苯基)-3-(4,4-二氟氮杂-1-基)喹啉-2-甲酰胺(KH11)的制备
向3-(4,4-二氟氮杂-1-基)喹啉-2-甲酸(40mg,0.1302mmol)的二氯甲烷(2mL)溶液中,加入HATU(60mg,0.1302mmol),5-氨基-2-氟苯甲酰胺(20mg,0.1.302mmol)和三乙胺(39mg,0.3908mmol)于室温下反应2h。反应完毕加水(20mL)淬灭反应体系,用乙酸乙酯(10mL×3)萃取,合并有机相,并用饱和食盐水(10mL)洗涤,无水硫酸钠干燥,过滤,减压浓缩。所得粗品经Prep-HPLC纯化得固体粉末N-(3-胺甲酰基-4-氟苯基)-3-(4,4-二氟氮杂-1-基)喹啉-2-甲酰胺(3.10mg,收率5.3%)。1H NMR(400MHz,MeOD)δ8.16(dd,J=6.4,2.7Hz,1H),8.05-7.97(m,2H),7.96(s,1H),7.86(d,J=8.3Hz,1H),7.65-7.55(m,2H),7.32-7.24(m,1H),3.49-3.43(m,4H),2.35-2.24(m,2H),2.17-2.01(m,2H),1.98-1.90(m,2H)。ESI-MS(m/z):443.2[M+H]+。
实施例12
N-(3-胺甲酰基苯基)-2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酰胺(KH12)的制备
2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酸的制备与实施例10步骤a-d相同。
将(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酸(100mg,0.29mmol)溶于DMF(2mL)中,再加入3-氨基苯甲酰胺(43.75mg,0.32mmol),HATU(113.3mg,0.35mmol)和DIEA(113.27mg,0.87mmol)室温下搅拌4h。加水(20mL)稀释反应体系,乙酸乙酯(10ml×3)萃取,饱和食盐水(10ml×2)洗涤,无水硫酸钠干燥有机相并浓缩,经Prep-HPLC制备得到白色固体N-(3-胺甲酰基苯基)-2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酰胺(3.2mg,收率2.37%)。1H NMR(400MHz,DMSO-d6)δ10.80(s,1H),8.31(s,1H),8.19(s,1H),8.01-7.88(m,2H),7.85(d,J=8.0Hz,1H),7.62(d,J=7.8Hz,2H),7.43-7.40(m,2H),3.82-3.67(m,2H),3.61(t,J=5.9Hz,2H),2.36-2.32(m,2H),2.00(br s,2H),1.89(br s,2H)。ESI-MS(m/z):461.3[M+H]+。
实施例13
2-(4,4-二氟氮杂-1-基)-N-(3-氨磺酰基苯基)喹啉-3-甲酰胺(KH13)的制备
3-(4,4-二氟氮杂-1-基)-N-(3-氨磺酰基苯基)喹啉-3-甲酰胺的制备与实施例8的步骤a-d及实施例6相似,只是将实施例6步骤f中的3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酸换乘成通过实施例8步骤a-d合成的2-(4,4-二氟氮杂-1-基)喹啉-3-甲酸,并将实施例6步骤a中的4-溴-2-氟吡啶换成4-溴-2-氟苯,实施例6步骤e的室温改成80℃,得白色固体2-(4,4-二氟氮杂-1-基)-N-(3-氨磺酰基苯基)喹啉-3-甲酰胺(22.12mg,收率30.56%)。1H NMR(400MHz,DMSO-d6)δ10.96(s,1H),8.33(s,2H),7.93-7.75(m,2H),7.64(d,J=3.6Hz,2H),7.57(dd,J=8.0,5.5Hz,2H),7.42(s,2H),7.35-7.25(m,1H),3.83-3.70(m,2H),3.61(t,J=5.9Hz,2H),2.43-2.40(m,2H),2.00-1.95(m,2H),1.90(br s,2H)。ESI-MS(m/z):461.1[M+H]+。
实施例14
2-(4,4-二氟氮杂-1-基)-N-(2-氨磺酰基吡啶-4-基)喹啉-3-甲酰胺(KH14)的制备
2-(4,4-二氟氮杂-1-基)-N-(2-氨磺酰基吡啶-4-基)喹啉-3-甲酰胺的制备与实施例8的步骤a-d及实施例6相似,只是将实施例6步骤f中的3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酸换乘成通过实施例8步骤a-d合成的2-(4,4-二氟氮杂-1-基)喹啉-3-甲酸,实施例6步骤e的室温改成80℃,得白色固体2-(4,4-二氟氮杂-1-基)-N-(2-氨磺酰基吡啶-4-基)喹啉-3-甲酰胺(7.49mg,收率11.4%)。1H NMR(400MHz,DMSO-d6)δ11.34(s,1H),8.63(d,J=5.4Hz,1H),8.41(s,1H),8.34(d,J=1.7Hz,1H),7.90-7.81(m,2H),7.65(d,J=3.6Hz,2H),7.47(s,2H),7.37-7.27(m,1H),3.77-3.69(m,2H),3.55(t,J=5.9Hz,2H),2.43-2.40(m,2H),1.98-1.95(m,2H),1.89(br s,2H)。ESI-MS(m/z):462.1[M+H]+。
实施例15
N-(2-氨甲酰基吡啶-4-基)-3-(4,4-二氟氮杂-1-基)喹啉-2-甲酰胺(KH15)的制备
步骤a):3-氯-2-甲基喹啉的制备
在0℃冰浴下,向2-甲基-1H-吲哚(10g,76.3mmol)的50% KOH(32mL)溶液中缓慢滴加苄基三乙基氯化铵(1.74g,7.63mmol)的氯仿(300mL)溶液,室温搅拌16h。反应完毕加水(200mL)淬灭,用二氯甲烷(200mL×3)萃取,合并有机相,用饱和食盐水(80mL×3)洗涤,无水硫酸钠干燥,过滤,减压浓缩。所得粗品经硅胶柱层析纯化(乙酸乙酯/石油醚(v/v)=1/20)后得黄色固体3-氯-2-甲基喹啉(2.1g,收率15%)。1H NMR(400MHz,DMSO-d6)δ8.55(s,1H),8.06-7.94(m,2H),7.80-7.78(m,1H),7.71-7.56(m,1H),2.77(s,3H)。ESI-MS(m/z):178.1[M+H]+。
步骤b):3-氯喹啉-2-甲醛的制备
向3-氯-2-甲基喹啉(2g,11.2mmol)的1,4二氧六环(40mL)溶液中缓慢加入二氧化硒(3.76g,33.8mmol),于100℃下反应2h。反应完全后,待反应液冷却至室温,抽滤,将滤液减压浓缩得白色固体3-氯喹啉-2-甲醛(2.1g,收率97%)。ESI-MS(m/z):192.1[M+H]+。
步骤c):3-氯喹啉-2-甲酸的制备
在0℃冰浴下,向3-氯喹啉-2-甲醛(2g,10.47mmol)的叔丁醇(20mL)溶液中缓慢加入亚氯酸钠(4.7g,52.3mmol)和磷酸氢二钠(7.4g,52.3mmol)的混合水溶液(36mL)。室温搅拌16h。待反应完全后用1M的盐酸水溶液调pH至中性,再用乙酸乙酯(100mL×3)萃取有机相,饱和食盐水(80mL)洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩得白色固体3-氯喹啉-2-甲酸(1.9g,收率88%)。1H NMR(400MHz,DMSO-d6)δ8.79(s,1H),8.11(dd,J=19.2,8.3Hz,2H),7.93(dd,J=11.2,4.1Hz,1H),7.80(t,J=7.5Hz,1H)。ESI-MS(m/z):208.1[M+H]+。
步骤d):3-氯喹啉-2-甲酰胺的制备
向3-氯喹啉-2-甲酸(300mg,1.44mmol)的DMF(3mL)溶液中加入氯化铵(231.5mg,4.33mmol),HATU(657.7mg,1.73mmol)和N,N-二异丙基乙胺(558mg,4.33mmol),于室温下反应4h。待反应完毕后加水(20mL)淬灭反应体系,用乙酸乙酯(30mL×3)萃取,合并有机相,并用饱和食盐水(30mL×2)洗涤,无水硫酸钠干燥,过滤,减压浓缩。所得粗品经硅胶柱层析纯化(甲醇/二氯甲烷(v/v)=1/10)后得白色固体3-氯喹啉-2-甲酰胺(180mg,收率60%)。1HNMR(400MHz,DMSO-d6)δ8.68(s,1H),8.17(s,1H),8.07(d,J=8.5Hz,1H),8.02(d,J=8.2Hz,1H),7.86(t,J=7.4Hz,2H),7.73(t,J=7.5Hz,1H)。ESI-MS(m/z):207.3[M+H]+。
步骤e):3-氯喹啉-2-甲腈的制备
在0℃冰浴下,向3-氯喹啉-2-甲酰胺(180mg,0.87mmol)的四氢呋喃(5mL)溶液中加入三乙胺(220mg,2.17mmol)和三氟乙酸酐(220mg,1.04mmol),继续在冰浴下搅拌1h。反应完毕后加水(10mL)淬灭反应体系,用乙酸乙酯(20mL×3)萃取,合并有机相,并用饱和食盐水(20mL×3)洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩。所得粗品经硅胶柱层析纯化(乙酸乙酯/石油醚(v/v)=1/10)后得黄色固体3-氯喹啉-2-甲腈(100mg,收率61%)。1HNMR(400MHz,DMSO-d6)δ8.93(s,1H),8.16(d,J=8.4Hz,1H),8.10(d,J=8.1Hz,1H),7.97(t,J=7.6Hz,1H),7.87(t,J=7.5Hz,1H)。ESI-MS(m/z):189.0[M+H]+。
步骤f):3-(4,4-二氟氮杂-1-基)喹啉-2-甲腈的制备
向3-氯喹啉-2-甲腈(340mg,1.80mmol)的甲苯(8mL)溶液中加入4.4-二氟氮杂环庚烷盐酸盐(400mg,2.34mmol),Ruphos-Pd-G2(140mg,0.179mmol),碳酸铯(1750mg,5.4mmol),氮气保护,于110℃下搅拌16h。反应完毕后加水(20mL)淬灭反应体系,用乙酸乙酯(20mL×3)萃取,合并有机相,并用饱和食盐水(20mL)洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩。所得粗品经硅胶柱层析纯化(乙酸乙酯/石油醚(v/v)=1/5)后得黄色油状物3-(4,4-二氟氮杂-1-基)喹啉-2-甲腈(200mg,收率48%)。ESI-MS(m/z):228.1[M+H]+。
步骤g):3-(4,4-二氟氮杂-1-基)喹啉-2-甲酰胺的制备
向3-(4,4-二氟氮杂-1-基)喹啉-2-甲腈(200mg,0.877mmol)的二甲亚砜(3mL)溶液中加入碳酸铯(437mg,1.315mmol),于0℃下缓慢加入30%双氧水(0.5mL),冰浴下反应2h。待反应完毕后加冰水(10mL)淬灭反应,用乙酸乙酯(10mL×3)萃取,合并有机相,并用饱和食盐水(20mL)洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩得黄色固体3-(4,4-二氟氮杂-1-基)喹啉-2-甲酰胺(120mg,收率45%)。ESI-MS(m/z):306.3[M+H]+。
步骤h):N-(2-(二(4-甲氧苄基)氨甲酰基)吡啶-4-基)-3-(4,4-二氟氮杂-1-基)喹啉-2-甲酰胺的制备
向3-(4,4-二氟氮杂-1-基)喹啉-2-甲酰胺(120mg,0.393mmol)的1,4-二氧六环(4mL)溶液中加入4-溴-N,N-二(4-甲氧苄基)吡啶酰胺(208.7mg,0.472mmol),Ruphos-Pd-G2(30.6mg,0.0393mmol)和碳酸铯(320mg,2.5mmol),氮气保护,于105℃搅拌16h。待反应完毕后加水(10mL)淬灭反应体系,用乙酸乙酯(15mL×3)萃取,合并有机相,并用饱和食盐水(10mL×3)洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩。所得粗品经硅胶柱层析纯化(乙酸乙酯/石油醚(v/v)=1/1)后得黄色固体N-(2-(二(4-甲氧苄基)氨甲酰基)吡啶-4-基)-3-(4,4-二氟氮杂-1-基)喹啉-2-甲酰胺(180mg,收率65%)。ESI-MS(m/z):666.5[M+H]+。
步骤i):N-(2-氨甲酰基吡啶-4-基)-3-(4,4-二氟氮杂-1-基)喹啉-2-甲酰胺的制备
向N-(2-(二(4-甲氧苄基)氨甲酰基)吡啶-4-基)-3-(4,4-二氟氮杂-1-基)喹啉-2-甲酰胺(170mg,0.255mmol)的1,2-二氯乙烷(3mL)溶液中加入三氟乙酸溶液(5mL)和一滴三氟甲磺酸,于70℃下反应1h。待反应完全后,将反应液减压浓缩,加饱和碳酸氢钠水溶液调节pH至中性,再用乙酸乙酯(15mL×3)萃取,合并有机相,并用饱和食盐水(10mL)洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩。所得粗品经Prep-HPLC制备得黄色固体N-(2-氨甲酰基吡啶-4-基)-3-(4,4-二氟氮杂-1-基)喹啉-2-甲酰胺(15mg,收率14%)。1H NMR(400MHz,DMSO-d6)δ11.33(s,1H),8.58(d,J=5.5Hz,1H),8.44(d,J=1.9Hz,1H),8.12(s,1H),8.00-7.96(m,1H),7.96(d,J=2.3Hz,1H),7.95-7.93(m,1H),7.92(dd,J=4.6,3.3Hz,1H),7.67(s,1H),7.64-7.57(m,2H),3.43-3.38(m,4H),2.26-2.23(m,2H),2.13-2.09(m,2H),1.90-1.81(m,2H)。ESI-MS(m/z):426.4[M+H]+。
步骤j):4-溴-N,N-二(4-甲氧苄基)吡啶酰胺的制备
向4-溴-吡啶甲酸(500mg,2.47mmol)的N,N-二甲基甲酰胺(6mL)溶液中加入双-(4-甲氧苄基)-胺(636mg,2.47mmol),HATU(1130mg,2.97mmol)和N,N-二异丙基乙胺(638mg,4.95mmol),于室温下反应16h。待反应完毕后加水(20mL)淬灭反应体系,用乙酸乙酯(20mL×3)萃取,合并有机相,并用饱和食盐水(20mL)洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩。所得粗品经硅胶柱层析纯化(乙酸乙酯/石油醚(v/v)=1/4)得透明油状物4-溴-N,N-二(4-甲氧苄基)吡啶酰胺(500mg,收率45%)。1H NMR(400MHz,DMSO-d6)δ8.49(d,J=5.4Hz,1H),7.90(d,J=1.8Hz,1H),7.77(dd,J=5.3,1.9Hz,1H),7.23(d,J=8.6Hz,2H),7.14(d,J=8.6Hz,2H),6.94(t,J=5.7Hz,2H),6.89(d,J=8.7Hz,2H),4.48(s,2H),4.34(s,2H),3.76(s,3H),3.74(s,3H)。ESI-MS(m/z):443.1[M+H]+。
实施例16
2-(4,4-二氟氮杂-1-基)-6,7-二氟-N-(3-氨磺酰基苯基)喹啉-3-甲酰胺(KH16)的制备
3-(4,4-二氟氮杂-1-基)-6,7-二氟-N-(3-氨磺酰基苯基)喹啉-3-甲酰胺的制备与实施例10步骤a-d及实施例6相似,只是将实施例6步骤f中的3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酸换乘成通过实施例10步骤a-d合成的2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酸,并将实施例6步骤a中的4-溴-2-氟吡啶换成4-溴-2-氟苯,实施例6步骤e的室温改成80℃,得白色固体2-(4,4-二氟氮杂-1-基)-6,7-二氟-N-(3-氨磺酰基苯基)喹啉-3-甲酰胺(10.92mg,收率17.5%)。1H NMR(400MHz,MeOD)δ8.36(s,1H),8.26(s,1H),7.86(d,J=8.1Hz,1H),7.67(dd,J=19.6,10.0Hz,2H),7.60-7.43(m,2H),3.87-3.78(m,2H),3.66(t,J=5.9Hz,2H),2.42-2.40(m,2H),2.08-2.00(m,2H),1.99-1.91(m,2H)。ESI-MS(m/z):497.1[M+H]+。
实施例17
2-(4,4-二氟氮杂-1-基)-6,7-二氟-N-(2-氨磺酰基吡啶-4-基)喹啉-3-甲酰胺(KH17)的制备
2-(4,4-二氟氮杂-1-基)-6,7-二氟-N-(2-氨磺酰基吡啶-4-基)喹啉-3-甲酰胺的合成与实施例10步骤a-d及实施例6相似,只是将实施例6步骤f中的3-(4,4-二氟氮杂-1-基)喹喔啉-2-甲酸换乘成通过实施例10步骤a-d合成的2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酸,并将实施例6步骤e的室温搅拌2h改成室温搅拌5h,得黄色固体2-(4,4-二氟氮杂-1-基)-6,7-二氟-N-(2-氨磺酰基吡啶-4-基)喹啉-3-甲酰胺(13.9mg,收率24%)。1H NMR(400MHz,DMSO-d6)δ11.38(s,1H),8.64(d,J=5.3Hz,1H),8.41(s,1H),8.32(s,1H),7.92(t,J=10.0Hz,1H),7.86(d,J=5.4Hz,1H),7.60(dd,J=11.8,7.9Hz,1H),7.47(s,2H),3.73(s,2H),3.54(s,2H),2.40(s,2H),1.99(s,2H),1.89(s,2H)。ESI-MS(m/z):498.2[M+H]+。
实施例18
N-(2-氨甲酰基吡啶-4-基)-7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺(KH18)的制备
步骤a):7-氟喹啉-6-甲腈的制备
向6-溴-7-氟喹啉(2g,8.84mmol)的NMP(20mL)溶液中分别加入Zn(CN)2(2.07g,17.68mmol)和Pd(PPh3)4(2.04g,1.77mmol),氮气保护,于120℃下搅拌16h。反应完成后,加水稀释,用乙酸乙酯萃取(20mL×3),合并有机相,并用饱和食盐水洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩,所得粗品经硅胶柱层析(石油醚/乙酸乙酯(v/v)=1/1)纯化后得浅黄色固体7-氟喹啉-6-甲腈(1.2g,收率78.8%)。1H NMR(400MHz,CDCl3)δ9.06(dd,J=4.3,1.5Hz,1H),8.24(dd,J=11.7,3.8Hz,2H),7.88(d,J=10.0Hz,1H),7.53(dd,J=8.4,4.3Hz,1H)。ESI-MS(m/z):173.0[M+H]+。
步骤b):7-(4,4-二氟氮杂-1-基)喹啉-6-甲腈的制备
向7-氟喹啉-6-甲腈(1.2g,6.97mmol)的DMSO(10mL)溶液中分别加入4.4-二氟氮杂环庚烷盐酸盐(4.7g,34.85mmol),K2CO3(4.8g,34.85mmol)和DIEA(4.5g,34.85mmol)。在100℃下搅拌16h。反应完成后,加水稀释反应体系,用乙酸乙酯萃取(20mL×3),合并有机相,并用饱和食盐水洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩。所得粗品经硅胶柱层析(石油醚/乙酸乙酯(v/v)=3/1)纯化后得浅黄色固体7-(4,4-二氟氮杂-1-基)喹啉-6-甲腈(800mg,收率24.1%)。1H NMR(400MHz,DMSO-d6)δ8.99–8.84(m,1H),8.54(s,1H),8.30(d,J=8.2Hz,1H),7.45(s,1H),7.41(dd,J=8.2,4.2Hz,1H),3.65-3.48(m,4H),2.50-2.37(m,2H),2.32-2.14(m,2H),2.06-1.88(m,2H)。ESI-MS(m/z):288.0[M+H]+。
步骤c):7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺的制备
向7-(4,4-二氟氮杂-1-基)喹啉-6-甲腈(800mg,2.77mmol)的二甲亚砜(10mL)溶液中加入碳酸铯(3.16g,9.72mmol),于0℃下缓慢加入30%双氧水(2.5mL),室温下反应4h。反应完毕后加冰水(10mL)淬灭反应体系,用乙酸乙酯(60mL×2)萃取,合并有机相,并用饱和食盐水(60mL)洗涤,无水硫酸钠干燥,过滤,将滤液减压浓缩后得白色固体7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺(80mg,收率95%)。ESI-MS(m/z):306.1[M+H]+。
步骤d):N-(2-(二(4-甲氧苄基)氨甲酰基)吡啶-4-基)-7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺的制备
4-溴-N,N-二(4-甲氧苄基)吡啶酰胺的合成见实施例15步骤j。
向7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺(350mg,1.06mmol)的甲苯(5mL)溶液中加入4-溴-N,N-二(4-甲氧苄基)吡啶酰胺(530mg,1.19mmol),Brettphos-Pd-G3(98.7mg,0.109mmol)和碳酸铯(880mg,2.72mmol),氮气保护,于110℃搅拌16h。反应完毕后加水(50mL)淬灭反应体系,用乙酸乙酯(15mL×3)萃取,合并有机相,并用饱和食盐水(10mL×3)洗涤,无水硫酸钠干燥,过滤,减压浓缩。所得粗品经硅胶柱层析纯化(乙酸乙酯/石油醚(v/v)=1/1)后得黄色固体N-(2-(二(4-甲氧苄基)氨甲酰基)吡啶-4-基)-7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺(200mg,收率26.2%)。1H NMR(400MHz,DMSO-d6)δ11.13(s,1H),8.86(dd,J=4.3,1.7Hz,1H),8.54(d,J=5.6Hz,1H),8.41-8.26(m,1H),8.14(s,1H),8.01(d,J=1.7Hz,1H),7.77(dd,J=5.6,2.0Hz,1H),7.50(s,1H),7.39(dd,J=8.2,4.3Hz,1H),7.20(dd,J=21.2,8.6Hz,4H),6.92(dd,J=18.3,8.6Hz,4H),4.47(s,2H),4.41(s,2H),3.75(d,J=10.4Hz,6H),3.42(t,J=5.8Hz,4H),2.34-2.18(m,2H),2.08(dd,J=16.0,10.4Hz,2H),1.83(d,J=5.3Hz,2H)。ESI-MS(m/z):665.9[M+H]+。
步骤e):N-(2-氨甲酰基吡啶-4-基)-7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺的制备
向N-(2-(二(4-甲氧苄基)氨甲酰基)吡啶-4-基)-7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺(200mg,0.30mmol)的二氯乙烷(2mL)溶液中加入三氟乙酸(2mL),反应体系在80℃下搅拌2h。反应完成后,将反应液浓缩,所得粗品经Prep-HPLC(1%甲酸水溶液,甲醇)纯化得到白色固体N-(2-氨甲酰基吡啶-4-基)-7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺(40mg,收率31.2%)。1H NMR(400MHz,DMSO-d6)δ11.33(s,1H),9.02(d,J=4.0Hz,1H),8.79(d,J=7.8Hz,1H),8.58(d,J=5.5Hz,1H),8.45-8.30(m,2H),8.12(s,1H),7.92(dd,J=5.4,2.0Hz,1H),7.69-7.60(m,2H),7.43(s,1H),3.55(dd,J=10.5,4.6Hz,4H),2.37-2.35(m,2H),2.13-2.07(m,2H),1.95-1.87(m,2H)。ESI-MS(m/z):426.0[M+H]+。
实施例19
N-(3-氨甲酰基-4-氟苯基)-7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺(KH19)的制备
步骤a):N-(3-氰基-4-氟苯基)-7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺的制备
7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺的合成见实施例18步骤a-c。
向7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺(350mg,1.06mmol)的甲苯(5mL)溶液中加入5-溴-2-氟苯甲腈(238mg,1.19mmol),Brettphos-Pd-G3(98.7mg,0.109mmol)和碳酸铯(880mg,2.72mmol),氮气保护,于110℃下搅拌16h。反应完毕后加水(50mL)淬灭反应体系,用乙酸乙酯(15mL×3)萃取,合并有机相,并用饱和食盐水(10mL×3)洗涤,无水硫酸钠干燥,过滤,减压浓缩。所得粗品经硅胶柱层析纯化(乙酸乙酯/石油醚(v/v)=1/1)后得黄色固体N-(3-氰基-4-氟苯基)-7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺(200mg,收率44.3%)。ESI-MS(m/z):424.9[M+H]+。
步骤b):N-(3-氨甲酰基-4-氟苯基)-7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺(KH19)的制备
向N-(3-氰基-4-氟苯基)-7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺(200mg,0.47mmol)的二甲亚砜(5mL)溶液中加入碳酸铯(535mg,1.64mmol),于0℃下缓慢加入30%双氧水(0.5mL),室温下反应4h。反应完毕后加冰水(10mL)淬灭反应体系,用乙酸乙酯(20mL×3)萃取,合并有机相,并用饱和食盐水(60mL)洗涤,然后用无水硫酸钠干燥,过滤,将滤液减压浓缩。所得粗品经Prep-HPLC(1%甲酸水溶液,甲醇)纯化得到白色固体N-(3-氨甲酰基-4-氟苯基)-7-(4,4-二氟氮杂-1-基)喹啉-6-甲酰胺(22.12mg,收率30.56%)。1H NMR(400MHz,DMSO-d6)δ10.91(s,1H),8.99(d,J=3.9Hz,1H),8.75(d,J=8.1Hz,1H),8.30(s,1H),8.05(dd,J=6.4,2.7Hz,1H),7.92-7.80(m,1H),7.72-7.54(m,3H),7.40(s,1H),7.31(d,J=9.2Hz,1H),3.67-3.43(m,4H),2.35-2.30(m,2H),2.13-2.09(m,2H),1.91(br s,2H)。ESI-MS(m/z):443.3[M+H]+。
实施例20
N-(2-氨甲酰基吡啶-4-基)-6-氯-3-(4,4-二氟氮杂-1-基)喹啉-2-甲酰胺(KH20)的制备
N-(2-氨甲酰基吡啶-4-基)-6-氯-3-(4,4-二氟氮杂-1-基)喹啉-2-甲酰胺的合成与实施例15相似,只是将步骤a中的2-甲基-1H-吲哚换成5-氯-2-甲基-1H-吲哚,即得黄色固体N-(2-氨甲酰基吡啶-4-基)-6-氯-3-(4,4-二氟氮杂-1-基)喹啉-2-甲酰胺(6.67mg,收率18%)。1H NMR(400MHz,DMSO-d6)δ11.38(s,1H),8.57(d,J=5.4Hz,1H),8.42(d,J=1.8Hz,1H),8.12(s,1H),8.02(d,J=2.3Hz,1H),7.98(d,J=8.9Hz,1H),7.92(dd,J=5.5,2.1Hz,1H),7.88(s,1H),7.67(s,1H),7.57(dd,J=8.9,2.3Hz,1H),3.47-3.40(m,4H),2.29-2.24(m,2H),2.16-2.04(m,2H),1.87(br s,2H)。ESI-MS(m/z):460.1[M+H]+。
实施例21
N-(3-氨甲酰基-4-氟苯基)-2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酰胺(KH21)的制备
2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酸的制备与实施例10步骤a-d相同。
在室温下向2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酸(130mg,0.380mmol)的二氯甲烷(4mL)和DMF(1mL)溶液中,加入HATU(187.7mg,0.494mmol)、DIEA(196.1mg,1.520mmol)、5-氨基-2-氟苯甲酰胺(58.5mg,0.380mmol),于40℃下反应48h。待反应完全后,加水淬灭反应体系,并用乙酸乙酯萃取有机相(15mL),再用饱和食盐水洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩。所得粗品经Prep-HPLC制备得白色固体N-(3-氨甲酰基-4-氟苯基)-2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酰胺(64.17mg,收率35%)。1H NMR(400MHz,DMSO-d6)δ10.83(s,1H),8.31(s,1H),8.11-8.00(m,1H),7.95-7.88(m,1H),7.86-7.81(m,1H),7.70(s,2H),7.60-7.57(m,1H),7.30(t,J=9.5Hz,1H),3.74(brs,2H),3.59(t,J=5.7Hz,2H),2.49-2.39(m,2H),2.02-1.90(m,2H),1.89(br s,2H)。ESI-MS(m/z):479.2[M+H]+。
实施例22
N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酰胺(KH22)的制备
步骤a):2-氯-7-甲氧基喹啉-3-甲酸的制备
向2-氯-7-甲氧基喹啉-3-甲醛(2.0g,9.02mmol)的乙醇(20mL)溶液中加入硝酸银(2.45g,14.44mmol)及氢氧化钠(1.80g,45.12mmol)的乙醇/水(v/v=4/1,10mL)溶液,于室温下搅拌反应16h。反应完毕后,用20mL水稀释反应体系,再用乙酸乙酯萃取(30mL×3),合并有机相,并用饱和食盐水洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩得粗品褐色固体2-氯-7-甲氧基喹啉-3-甲酸(1.0g,收率50%)。1HNMR(400MHz,DMSO-d6)δ13.58(brs,1H),8.86(s,1H),8.08(d,J=9.0Hz,1H),7.41(d,J=2.4Hz,1H),7.38-7.32(m,1H),3.95(s,3H)。ESI-MS(m/z):237.8[M+H]+。
步骤b):2-氯-7-甲氧基喹啉-3-甲酸乙酯的制备
将2-氯-7-甲氧基喹啉-3-甲酸(1.0g,4.21mmol)溶于DMF(15mL),加入K2CO3(1.16g,8.42mmol),将反应体系置于0℃冰水浴中后滴加碘乙烷(1.31g,8.42mmol),滴加完毕后撤走冰水浴,于室温下反应2h。反应完毕后,用20mL水稀释反应体系,乙酸乙酯萃取(30mL×3),合并有机相,并饱和食盐水洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩。所得粗品经硅胶柱层析(石油醚/乙酸乙酯(v/v)=8/1)纯化后得白色固体2-氯-7-甲氧基喹啉-3-甲酸乙酯(600mg,收率60%)。ESI-MS(m/z):265.9[M+H]+。
步骤c):2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酸乙酯的制备
向2-氯-7-甲氧基喹啉-3-甲酸乙酯(600mg,2.26mmol)的N-甲基吡咯烷酮(10mL)溶液中加入4,4-二氟氮杂环庚烷盐酸盐(503.82mg,2.94mmol)和N,N-二异丙基乙胺(875.61g,6.77mmol)。于140℃下搅拌16h,反应完毕后用水(30mL)稀释反应体系,再用乙酸乙酯(20mL×2)萃取,合并有机相,并用饱和食盐水(20mL)洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩。所得粗品经硅胶柱层析纯化(乙酸乙酯/石油醚(v/v)=1/8)后得无色油状物2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酸乙酯(400mg,收率66.7%)。ESI-MS(m/z):365.5[M+H]+。
步骤d):2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酸的制备
向2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酸乙酯(400mg,1.1mmol)的水(1mL)/甲醇(5mL)/四氢呋喃(1mL)混合溶液中缓慢加入氢氧化锂(262.87mg,10.98mmol),于50℃下反应12h;反应完全后,加水(20mL)稀释反应液,用1M的稀盐酸调节pH至4左右,再用乙酸乙酯(30mL×3)萃取有机相,饱和食盐水洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩后得白色固体2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酸(320mg,收率80%)。ESI-MS(m/z):336.9[M+H]+。
步骤e):2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酰氯的制备
在0℃下,向2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酸(320mg,0.951mmol)的二氯甲烷(5mL)溶液中加入二氯亚砜(222.36mg,1.9mmol)。于40℃下搅拌4h,反应完毕后将反应液减压浓缩得无色油状物2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酰氯(320mg,收率100%),无需纯化,直接用于下一步。ESI-MS(m/z):335.6[M+H]+。
步骤f):4-(2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酰胺基)吡啶-2-甲酸甲酯的制备
在0℃下,向2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酰氯(320mg,0.9mmol)的二氯甲烷(5mL)溶液中加入三乙胺(182.54mg,1.8mmol),4-氨基-吡啶-2-甲酸甲酯(205.85mg,1.35mmol)。于室温下搅拌12h,反应完毕后加水(20mL)稀释反应液,再用乙酸乙酯(20mL×2)萃取,合并有机相,并用饱和食盐水(20mL)洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩;所得粗品经硅胶柱层析纯化(乙酸乙酯/石油醚(v/v)=1/1)后得黄色固体4-(2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酰胺基)吡啶-2-甲酸甲酯(140mg,收率43.75%)。1HNMR(400MHz,CDCl3)δ8.71-8.67(m,2H),8.24(s,1H),8.05(s,1H),7.72(d,J=8.9Hz,1H),7.23-7.21(m,1H),7.12(d,J=9.0Hz,1H),4.12(d,J=7.2Hz,2H),4.03(s,3H),3.99-3.97(m,3H),3.77-3.73(m,2H),3.57-3.53(m,2H),2.22(br s,2H),1.97(br s,2H)。ESI-MS(m/z):470.8[M+H]+。
步骤g):N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酰胺的制备
向4-(2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酰胺基)吡啶-2-甲酸甲酯(140mg,0.297mmol)的二甲亚砜(4mL)溶液中加入氯化铵(127.33mg,2.38mmol),氨水(417.15mg,2.98mmol)。在闷罐中70℃搅拌24h,反应完毕后加水(15mL)稀释反应液,用乙酸乙酯(20mL×2)萃取,合并有机相,并用饱和食盐水(20mL)洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩;所得粗品通过C18反向柱甲酸制备,得黄色固体粉末N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酰胺(52.93mg,收率37.8%)。1HNMR(400MHz,DMSO-d6)δ11.14(s,1H),8.54(d,J=5.5Hz,1H),8.38(d,J=1.5Hz,1H),8.31(s,1H),8.10(s,1H),7.91(dd,J=5.3,1.8Hz,1H),7.75(d,J=8.8Hz,1H),7.65(s,1H),7.03(d,J=2.2Hz,1H),6.95(dd,J=8.8,2.4Hz,1H),3.89(s,3H),3.77(br s,2H),3.54(t,J=5.8Hz,2H),2.44-2.38(m,2H),1.99-1.89(m,2H),1.88-1.82(m,2H)。ESI-MS(m/z):456.2[M+H]+。
实施例23
N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)-7-甲基喹啉-3-甲酰胺(KH23)的制备
N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)-7-甲基喹啉-3-甲酰胺的合成方法与实施例22相同,只是将步骤a)中的2-氯-7-甲氧基喹啉-3-甲醛换成2-氯-7-甲基喹啉-3-甲醛,将步骤g)中的闷罐70℃改成闷罐80℃即可得黄色固体N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)-7-甲基喹啉-3-甲酰胺(30.27mg,收率21%)。1H NMR(400MHz,DMSO-d6)δ11.16(s,1H),8.55(d,J=5.5Hz,1H),8.38(d,J=2.0Hz,1H),8.33(s,1H),8.10(s,1H),7.90(d,J=5.4,2.1Hz,1H),7.74(d,J=8.2Hz,1H),7.64(s,1H),7.46(s,1H),7.16(d,J=8.3,1.5Hz,1H),3.76-3.70(m,2H),3.55(t,J=5.9Hz,2H),2.46(br s,3H),2.45-2.31(m,2H),2.04-1.99(m,2H),1.90-1.81(m,2H)。ESI-MS(m/z):440.3[M+H]+。
实施例24
N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)-6,7-二甲氧基喹啉-3-甲酰胺(KH24)的制备
N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)-6,7-二甲氧基喹啉-3-甲酰胺的合成方法与实施例22相同,只是将步骤a)中的2-氯-7-甲氧基喹啉-3-甲醛换成2-氯-6,7-二甲氧基喹啉-3-甲醛,将步骤g)中的闷罐70℃改成闷罐85℃即可得黄色固体N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)-6,7-二甲氧基喹啉-3-甲酰胺(110.22mg,收率56%)。1H NMR(400MHz,DMSO-d6)δ11.09(s,1H),8.54(d,J=5.5Hz,1H),8.39(s,1H),8.22(s,1H),8.10(s,1H),7.90(d,J=3.3Hz,1H),7.64(s,1H),7.28(s,1H),7.06(s,1H),3.91(s,3H),3.84(s,3H),3.68(br s,2H),3.51(t,J=5.8Hz,2H),2.40(br s,2H),1.99-1.95(m,2H),1.90-1.83(m,2H)。ESI-MS(m/z):486.2[M+H]+。
实施例25
N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酰胺(KH25)的制备
N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酰胺的合成方法与实施例22相同,只是将步骤a)中的2-氯-7-甲氧基喹啉-3-甲醛换成2-氯-6-甲氧基喹啉-3-甲醛,将步骤g)中的闷罐70℃改成闷罐85℃即可得黄色固体N-(2-氨甲酰基吡啶-4-基)-2-(4,4-二氟氮杂-1-基)-7-甲氧基喹啉-3-甲酰胺(35.20mg,收率28%)。1HNMR(400MHz,DMSO-d6)δ11.16(s,1H),8.55(d,J=5.4Hz,1H),8.39(s,1H),8.30(s,1H),8.12(d,J=13.3Hz,1H),7.89(d,J=1.9Hz,1H),7.64(d,J=13.8Hz,1H),7.60(d,J=9.3Hz,1H),7.34(d,J=2.9Hz,1H),7.31(s,1H),3.84(s,3H),3.68(m,2H),3.53(t,J=5.9Hz,2H),2.35(m,2H),1.99(m,2H),1.86(m,2H)。ESI-MS(m/z):456.1[M+H]+。
其中,2-氯-6-甲氧基喹啉-3-甲醛的合成方法如下。
在0℃下,向DMF(7.96g,108.96mmol)中慢慢滴加三氯氧磷(41.77g,272.41mmol),继续搅拌反应1小时。将对甲氧基甲酰胺基苯(4.5g,27.24mmol)加入反应液,升温至80℃后继续搅拌12小时。反应完成后向反应液中倒入冰水淬灭反应体系,搅拌10分钟后过滤,滤饼用水洗涤,干燥后得到棕色固体2-氯-6-甲氧基喹啉-3-甲醛(1.8g,收率40%)粗品,无需纯化直接用于下一步。1H NMR(400MHz,DMSO-d6)δ8.76(s,1H),8.13(d,J=8.1Hz,1H),7.98(d,J=8.4Hz,1H),7.88(t,J=7.6Hz,1H),7.70(t,J=7.5Hz,1H),3.69(s,3H)。ESI-MS(m/z):221.9[M+H]+。
实施例26
2-(4,4-二氟氮杂-1-基)-N-(2-(S-甲基亚胺磺酰基)吡啶-4-基)喹啉-3-甲酰胺(KH26)的制备
步骤a):2-氯喹啉-3-甲酸的制备
向硝酸银(29.61g,174.31mmol)水溶液中加入氢氧化钠(14.61g,365.32mmol)水溶液,随后加入2-氯喹啉-3-甲醛(20g,104.38mmol),在0℃下搅拌3h。待反应完毕后将反应液过滤,滤液用3N HCl调至pH=5,过滤,得黄色滤饼,即2-氯喹啉-3-甲酸粗品(15g,收率69.2%),直接用于下一步。1H NMR(400MHz,DMSO-d6)δ10.38(s,1H),8.85(s,1H),7.96(d,J=9.2Hz,1H),7.71(d,J=2.8Hz,1H),7.63(dd,J=9.2,2.8Hz,1H)。ESI-MS(m/z):207.8[M+H]+。
步骤b):2-氯喹啉-3-甲酸乙酯的制备
向2-氯喹啉-3-甲酸(23g,110.78mmol)的DMF(200mL)溶液中加入K2CO3(30.62g,221.57mmol),于0℃下滴加碘乙烷(34.55g,221.57mmol),升至室温,继续反应16h。反应完毕后,向反应液中加入200mL水稀释,再用乙酸乙酯萃取(200mL×3),合并有机相,并用饱和食盐水洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩,所得粗品经硅胶柱层析(石油醚/乙酸乙酯(v/v)=9/1)纯化后得黄色固体2-氯喹啉-3-甲酸乙酯(14g,收率53.6%)。1H NMR(400MHz,DMSO-d6)δ8.96(s,1H),8.22-8.18(m,1H),8.05-8.01(m,1H),7.96(m,1H),7.76(m,1H),4.48-4.37(m,2H),1.41-1.34(m,3H)。ESI-MS(m/z):235.9[M+H]+。
步骤c):2-(4,4-二氟氮杂-1-基)喹啉-3-甲酸乙酯的制备
向2-氯喹啉-3-甲酸乙酯(30g,127.00mmol)的NMP(400ml)溶液中加入4,4-二氟氮杂环庚烷盐酸盐(28.05g,165.00mmol)和DIEA(49.15g,381.00mmol),于140℃下反应16h。反应完毕后,加入500mL水稀释反应体系,并用乙酸乙酯萃取(600mL×3),合并有机相,用饱和食盐水洗涤三次,无水硫酸钠干燥,抽滤,将滤液减压浓缩,所得粗品经硅胶柱层析(石油醚/乙酸乙酯(v/v)=3/1)纯化后得黄色固体2-(4,4-二氟氮杂-1-基)喹啉-3-甲酸乙酯(35g,收率82.23%)。1H NMR(400MHz,DMSO-d6)δ1 8.42(d,J=7.0Hz,1H),7.84(d,J=8.0Hz,1H),7.69-7.54(m,2H),7.35-7.19(m,1H),4.35(q,J=7.1Hz,2H),3.78-3.63(m,2H),3.44(t,J=5.8Hz,2H),2.48-2.34(m,2H),2.08-1.85(m,4H),1.34(t,J=7.1Hz,3H)。ESI-MS(m/z):335.1[M+H]+。
步骤d):2-(4,4-二氟氮杂-1-基)喹啉-3-甲酸的制备
向2-(4,4-二氟氮杂-1-基)喹啉-3-甲酸乙酯(35g,105.00mmol)的甲醇(400mL)/水(80mL)溶液中加入氢氧化锂(11.86g,495.00mmol),室温下搅拌过夜。待反应完成后,将反应液减压旋蒸除去甲醇,加入稀盐酸调节pH至3~4,产物析出,过滤,将滤饼用石油醚打浆得到白色固体2-(4,4-二氟氮杂-1-基)喹啉-3-甲酸(25g,收率78%)。1H NMR(400MHz,DMSO-d6)δ8.43(s,1H),7.84(d,J=7.8Hz,1H),7.65-7.51(m,2H),7.27(m,1H),3.74-3.68(m,2H),3.50(t,J=5.9Hz,2H),1.99-1.90(m,6H)。ESI-MS(m/z):307.1[M+H]+。
步骤e):2-(4,4-二氟氮杂-1-基)喹啉-3-甲酰胺的制备
向2-(4,4-二氟氮杂-1-基)喹啉-3-甲酸(23g,75.09mmol)的DMF(200ml)溶液中依次加入氯化铵(12.05g,225.26mmol)、DIEA(29.11g,225.26mmol)以及HATU(34.26g,90.10mmol),于室温下反应16h,反应完毕后,用200mL水稀释反应体系,乙酸乙酯萃取(200mL×3),合并有机相,并用饱和食盐水洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩,所得粗品经硅胶柱层析(石油醚/乙酸乙酯(v/v)=1/1)纯化后得黄色固体2-(4,4-二氟氮杂-1-基)喹啉-3-甲酰胺(9g,收率39.26%)。1H NMR(400MHz,DMSO-d6)δ8.15(d,J=12.5Hz,2H),7.84(d,J=8.0Hz,1H),7.64(d,J=3.9Hz,2H),7.39-7.23(m,1H),3.82-3.75(m,2H),3.68(t,J=6.0Hz,2H),2.49-2.45(m,2H),2.08(td,J=14.3,8.2Hz,2H),2.02-1.91(m,2H)。ESI-MS(m/z):305.9[M+H]+。
步骤f):2-(4,4-二氟氮杂-1-基)-N-(2-(甲基亚磺酰基)吡啶-4-基)喹啉-3-甲酰胺的制备
将2-(4,4-二氟氮杂-1-基)喹啉-3-甲酰胺(305mg,1.00mmol)、4-溴-2-(甲基亚磺酰基)吡啶(220mg,1.00mmol)、Cs2CO3(1.14g,3.50mmol)、Ruphos-Pd-G2(77mg,0.10mmol)溶于甲苯(5mL)中,反应体系经氮气置换后在110℃下搅拌16h。反应完毕后,向反应液中加入10mL水,再用乙酸乙酯萃取(10mL×2),合并有机相,用饱和食盐水洗涤(10mL),无水硫酸钠干燥,抽滤,将滤液减压浓缩,所得粗品经硅胶板纯化(乙酸乙酯/石油醚(v/v)=2/1),得黄色固体2-(4,4-二氟氮杂-1-基)-N-(2-(甲基亚磺酰基)吡啶-4-基)喹啉-3-甲酰胺(386mg,收率86.7%)。1H NMR(400MHz,DMSO-d6)δ11.41(s,1H),8.65(d,J=5.4Hz,1H),8.47(s,1H),8.36(s,1H),7.94-7.85(m,2H),7.71(d,J=3.7Hz,2H),7.41-7.35(m,1H),3.86-3.75(m,2H),3.63(t,J=5.8Hz,2H),2.87(s,3H),2.52-2.40(m,2H),2.13-2.05(m,2H),1.98-1.90(m,2H)。ESI-MS(m/z):445.1[M+H]+。
步骤g):2-(4,4-二氟氮杂-1-基)-N-(2-(S-甲基亚胺磺酰基)吡啶-4-基)喹啉-3-甲酰胺的制备
将2-(4,4-二氟氮杂-1-基)-N-(2-(甲基亚磺酰基)吡啶-4-基)喹啉-3-甲酰胺(350mg,0.786mmol)溶于伊顿试剂(5mL)中,加入NaN3(102mg,1.573mmol),于50℃下搅拌1h。反应完毕后,加水(10mL)淬灭反应体系,用二氯甲烷(10mL×2)萃取,合并有机相,并用饱和食盐水(10mL×2)洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩,所得粗品经反相制备纯化得黄色固体2-(4,4-二氟氮杂-1-基)-N-(2-(S-甲基亚胺磺酰基)吡啶-4-基)喹啉-3-甲酰胺(47.31mg,收率13.1%)。1H NMR(400MHz,DMSO-d6)δ11.37(s,1H),8.63(d,J=5.4Hz,1H),8.44(d,J=1.5Hz,1H),8.40(s,1H),7.90(dd,J=5.4,1.8Hz,1H),7.85(d,J=8.0Hz,1H),7.65(d,J=3.7Hz,2H),7.35-7.28(m,1H),4.36(s,1H),3.81-3.70(m,2H),3.56(t,J=5.7Hz,2H),3.16(s,3H),2.47-2.35(m,2H),2.08-1.95(m,2H),1.93-1.83(m,2H)。ESI-MS(m/z):460.2[M+H]+。
实施例27
2-(4,4-二氟氮杂-1-基)-6,7-二氟-N-(2-(S-甲基亚胺磺酰基)吡啶-4-基)喹啉-3-甲酰胺(KH27)的制备
2-(4,4-二氟氮杂-1-基)-6,7-二氟-N-(2-(S-甲基亚胺磺酰基)吡啶-4-基)喹啉-3-甲酰胺的合成与实施例26的步骤e-g类似,只是将步骤e中的2-(4,4-二氟氮杂-1-基)喹啉-3-甲酸替换成2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酸;2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酸的合成见实施例10的步骤a-d。1H NMR(400MHz,DMSO-d6)δ11.46(s,1H),8.67(d,J=5.5Hz,1H),8.46(s,1H),8.40(s,1H),7.95-7.90(m,2H),7.62-7.57(m,1H),3.73(br s,2H),3.54(t,J=5.6Hz,2H),3.28(s,3H),2.45-2.39(m,2H),2.03-1.97(m,2H),1.93-1.88(m,2H)。ESI-MS(m/z):496.3[M+H]+。
实施例28
2-(4,4-二氟氮杂-1-基)-N-(2-(N-甲基胺磺酰基)吡啶-4-基)喹啉-3-甲酰胺(KH28)的制备
步骤a)4-溴-N-甲基吡啶-2-磺酰胺的制备
向甲胺(2.78g,25%水溶液)的四氢呋喃(10mL)溶液中依此加入DIEA(5.786g,44.85mmol)和4-溴吡啶-2-磺酰氯(2.87g,11.21mmol),室温下搅拌2h。反应完毕后,加入30mL水,再用乙酸乙酯萃取(30mL×2),合并有机相,并用饱和食盐水洗涤(30mL),无水硫酸钠干燥,抽滤,将滤液减压浓缩,所得粗品经硅胶柱层析纯化(乙酸乙酯/石油醚(v/v)=1/1),得黄色固体4-溴-N-甲基吡啶-2-磺酰胺(1.36g,收率48.3%)。1H NMR(400MHz,DMSO-d6)δ8.64(d,J=5.2Hz,1H),8.10(d,J=1.8Hz,1H),7.99(dd,J=5.2,1.8Hz,1H),7.87-7.81(m,1H),2.57(d,J=4.9Hz,3H)。ESI-MS(m/z):250.9[M+H]+。
步骤b)4-溴-N-(4-甲氧基苄基)-N-甲基吡啶-2-磺酰胺的制备
将4-溴-N-甲基吡啶-2-磺酰胺(400mg,1.59mmol),PMBCl(500mg,3.19mmol)和K2CO3(440mg,3.19mmol)溶于DMF(4mL)中,室温下搅拌6h。反应完毕后,加入10mL水,再用乙酸乙酯萃取(10mL×3),合并有机相,并用饱和食盐水洗涤(10mL×3),无水硫酸钠干燥,抽滤,减压浓缩,所得粗品经硅胶板纯化制备(乙酸乙酯/石油醚(v/v)=1/4),得黄色固体4-溴-N-(4-甲氧基苄基)-N-甲基吡啶-2-磺酰胺(500mg,收率84.5%)。1H NMR(400MHz,CDCl3)δ8.45(d,J=5.1Hz,1H),8.06(d,J=1.7Hz,1H),7.58(dd,J=5.1,1.7Hz,1H),7.23(d,J=8.5Hz,1H),6.85–6.76(m,3H),4.30(s,2H),3.74(s,3H),2.74(s,3H)。ESI-MS(m/z):371.0[M+H]+。
步骤c)2-(4,4-二氟氮杂-1-基)-N-(2-(N-(4-甲氧基苄基)-N-甲基磺酰基)吡啶-4-基)喹啉-3-甲酰胺的制备
2-(4,4-二氟氮杂-1-基)喹啉-3-甲酰胺的合成见实施例26步骤a-e。
将4-溴-N-(4-甲氧基苄基)-N-甲基吡啶-2-磺酰胺(250mg,0.67mmol),2-(4,4-二氟氮杂-1-基)喹啉-3-甲酰胺(205mg,0.67mmol),Ruphos-Pd-G2(52mg,0.067mmol)和Cs2CO3(768mg,2.36mmol)溶于甲苯(5mL)中,氮气保护,在110℃下搅拌12h。反应完毕后,加入10mL水,再用乙酸乙酯萃取(10mL×2),合并有机相,并用饱和食盐水洗涤(10mL),无水硫酸钠干燥,抽滤,减压浓缩,所得粗品经硅胶板(石油醚/乙酸乙酯(v/v)=2/3)纯化后得黄色固体2-(4,4-二氟氮杂-1-基)-N-(2-(N-(4-甲氧基苄基)-N-甲基磺酰基)吡啶-4-基)喹啉-3-甲酰胺(370mg,收率92.1%)。1H NMR(400MHz,DMSO-d6)δ11.46(s,1H),8.75(d,J=5.5Hz,1H),8.50(s,1H),8.40(s,1H),8.03(d,J=3.6Hz,1H),7.91(d,J=7.9Hz,1H),7.74-7.69(m,2H),7.42-7.36(m,1H),7.34-7.29(m,2H),7.01-6.97(m,2H),4.36(s,2H),3.85-3.76(m,6H),3.66-3.58(m,2H),2.78(s,2H),2.51-2.40(m,2H),2.12-2.01(m,2H),2.00-1.91(m,2H)。ESI-MS(m/z):596.2[M+H]+。
步骤d)2-(4,4-二氟氮杂-1-基)-N-(2-(N-甲基胺磺酰基)吡啶-4-基)喹啉-3-甲酰胺的制备
将2-(4,4-二氟氮杂-1-基)-N-(2-(N-(4-甲氧基苄基)-N-甲基磺酰基)吡啶-4-基)喹啉-3-甲酰胺(370mg,0.62mmol)溶于三氟乙酸(5mL)中,加入三氟甲磺酸(0.5mL),70℃下搅拌2h。反应完毕后,待反应液恢复至室温后再倒入冰水(10mL)中,用2-甲基四氢呋喃萃取(10mL×2),合并有机相,并用饱和食盐水洗涤(10mL),无水硫酸钠干燥,抽滤,将滤液减压浓缩,所得粗品经制备纯化得淡黄色固体粉末2-(4,4-二氟氮杂-1-基)-N-(2-(N-甲基胺磺酰基)吡啶-4-基)喹啉-3-甲酰胺(105.74mg,收率35.8%)。1H NMR(400MHz,DMSO-d6)δ11.36(s,1H),8.65(d,J=5.5Hz,1H),8.44(s,1H),8.32(s,1H),7.95-7.90(m,1H),7.85(d,J=7.9Hz,1H),7.75-7.69(m,1H),7.67(d,J=3.8Hz,2H),7.37-7.30(m,1H),3.78-3.71(m,2H),3.56(t,J=5.8Hz,2H),2.57(d,J=4.8Hz,3H),2.46-2.35(m,2H),2.06-1.94(m,2H),1.93-1.85(m,2H)。ESI-MS(m/z):476.1[M+H]+。
实施例29
2-(4,4-二氟氮杂-1-基)-6,7-二氟-N-(2-(N-甲基胺磺酰基)吡啶-4-基)喹啉-3-甲酰胺(KH29)的制备
2-(4,4-二氟氮杂-1-基)-6,7-二氟-N-(2-(N-甲基胺磺酰基)吡啶-4-基)喹啉-3-甲酰胺的合成与实施例28相似,只是将2-(4,4-二氟氮杂-1-基)喹啉-3-甲酰胺替换成2-(4,4-二氟氮杂-1-基)-6,7-二氟喹啉-3-甲酰胺(合成见实施例10的步骤a-d及实施例26的步骤e),即得淡黄色固体2-(4,4-二氟氮杂-1-基)-6,7-二氟-N-(2-(N-甲基胺磺酰基)吡啶-4-基)喹啉-3-甲酰胺(61.82mg,收率23.13%)。1H NMR(400MHz,DMSO-d6)δ11.40(s,1H),8.66(d,J=5.5Hz,1H),8.42(s,1H),8.30(d,J=1.9Hz,1H),7.95-7.88(m,2H),7.73(q,J=4.9Hz,1H),7.63-7.58(m,1H),3.76-3.67(m,2H),3.54(t,J=5.8Hz,2H),2.56(d,J=4.9Hz,3H),2.47-2.33(m,2H),2.07-1.93(m,2H),1.90-1.84(m,2H)。ESI-MS(m/z):512.1[M+H]+。
实施例30
2-(2-氯-4-氟苯氧基)-N-(3-磺酰胺基苯基)喹啉-3-甲酰胺(专利WO2014120815A1实施例66化合物)的制备
步骤a):2-(2-氯-4-氟苯氧基)喹啉-3-羧酸甲酯的制备
取一个100mL单口瓶,加入2-氯-喹啉-3-羧酸甲脂(0.117g,0.53mmol)、碳酸铯(0.525g,1.6mmol)、10mL DMF、2-氯-4-氟苯酚(0.159g,1.1mmol),氮气置换三次,升温至100℃继续反应。通过TLC点板确定反应完全后,待体系降温到室温,加入纯水50mL,并用乙酸乙酯30mL×3萃取,合并有机相,再用饱和氯化钠洗涤,无水硫酸钠干燥,抽滤,将滤液减压旋干。所得粗品经薄层层析硅胶制备板纯化(展开剂:石油醚/乙酸乙酯(v/v)=4/1;洗脱液:二氯甲烷/甲醇(v/v)=10/1)后得黄色固体2-(2-氯-4-氟苯氧基)喹啉-3-羧酸甲酯(0.132g,收率75.5%)。ESI-MS(m/z):332.4[M+H]+。
步骤b):2-(2-氯-4-氟苯氧基)喹啉-3-羧酸的制备
取一个100mL单口瓶,加入2-(2-氯-4-氟苯氧基)喹啉-3-羧酸甲酯(0.122g,0.37mmol)、甲醇4mL,搅拌10分钟后加入纯水20mL、氢氧化锂(36mg,1.5mmol),升温至45℃继续反应10小时。将反应液减压旋干,加入20mL纯水,用乙酸乙酯萃取(20mL×2);取水相,用1M盐酸调节pH4~5,再用乙酸乙酯萃取(20mL×3),合并有机相,并用饱和氯化钠水溶液洗涤,无水硫酸钠干燥,抽滤,将滤液减压旋干得白色固体2-(2-氯-4-氟苯氧基)喹啉-3-羧酸(0.102g,收率87.3%)。ESI-MS(m/z):316.0[M-H]-。
步骤c):2-(2-氯-4-氟苯氧基)-N-(3-磺酰胺基苯基)喹啉-3-甲酰胺的制备
取一个250mL三口瓶,加入2-(2-氯-4-氟苯氧基)喹啉-3-羧酸(60mg,0.189mnol)、3-磺酰胺基苯胺(39mg,0.226mmol)、4mL DMF,氮气置换三次并保护体系,冰水浴降温20分钟后加入DIPEA(53mg,0.41mmol),随后滴加丙基磷酸三环酸酐溶液(0.331g,0.52mmol),滴完后继续反应1h,再升至室温搅拌过夜。待反应完全后加入纯水30mL,再用乙酸乙酯萃取(30mL×3),合并有机相,并用饱和氯化钠水溶液洗涤,无水硫酸钠干燥,抽滤,将滤液减压旋干。所得粗品经薄层层析硅胶制备板纯化(展开剂:二氯甲烷/甲醇(v/v)=10/1);洗脱液:二氯甲烷/甲醇(v/v)=10/1)得白色固体2-(2-氯-4-氟苯氧基)-N-(3-磺酰胺基苯基)喹啉-3-甲酰胺(17mg,收率19.06%)。1H NMR(400MHz,DMSO-d6)δ10.94(s,1H),8.79(s,1H),8.39(s,1H),8.09(d,J=8.0Hz,1H),7.95-7.82(m,1H),7.79-7.71(m,1H),7.68-7.54(m,6H),7.48-7.32(m,3H)。ESI-MS(m/z):472.2[M+H]+。
实施例31
5-氯-2-(4,4-二氟氮杂-1-基)-N-(2-氨磺酰基吡啶-4-基)-4-三氟甲基苯甲酰胺(专利CN112457294B中A6化合物)的制备
步骤a):5-氯-2-氟-4-三氟甲基苯甲酰胺的制备
在0℃下,向5-氯-2-氟-4-三氟甲基苯甲酸(22g,90mol)的二氯甲烷(100mL)溶液中加入草酰氯(25mL)和DMF(400mg,5.47mmol),继续搅拌0.5h。反应完毕后,将反应液减压浓缩得黄色油状物,加入二氯甲烷(100mL),并置于冰水浴中,缓慢滴加氨水(50mL),搅拌1h。反应完毕后加水(100mL)稀释反应体系,用二氯甲烷(100mL×2)萃取,合并有机相,并用饱和食盐水(50mL)洗涤,无水硫酸干燥,抽滤,将滤液减压浓缩得白色固体5-氯-2-氟-4-三氟甲基苯甲酰胺(21g,收率95%)。1H NMR(400MHz,DMSO-d6)δ8.06(s,1H),7.96(s,1H),7.93(s,1H),7.91(d,J=2.5Hz,1H)。ESI-MS(m/z):239.7[M-H]-。
步骤b):5-氯-2-(4,4-二氟氮杂-1-基)-4-三氟甲基苯甲酰胺的制备
向5-氯-2-氟-4-三氟甲基苯甲酰胺(21.7g,0.09mol)的N-甲基吡咯烷酮(200mL)溶液中加入4,4-二氟氮杂环庚烷盐酸盐(30.6g,0.18mol)、N,N-二异丙基乙胺(34.8g,0.27mol),于100℃下搅拌16h。反应完毕后用水(600mL)淬灭反应体系,再用乙酸乙酯(400mL×2)萃取,合并有机相,并用饱和食盐水(200mL)洗涤,无水硫酸干燥,抽滤,将滤液减压浓缩,所得粗品经硅胶柱层析纯化(乙酸乙酯/石油醚(v/v)=1/3)后得黄色固体5-氯-2-(4,4-二氟氮杂-1-基)-4-三氟甲基苯甲酰胺(27g,收率84%)。1H NMR(400MHz,DMSO-d6)δ8.06(s,1H),7.69(s,1H),7.49(s,1H),7.27(s,1H),3.44-3.38(m,2H),3.35-3.30(m,2H),2.31-2.22(m,2H),2.17-2.05(m,2H),1.89-1.80(m,2H)。ESI-MS(m/z):357.0[M+H]+。
步骤c):N-(2-(N,N-二(4-甲氧苄基)胺磺酰基)吡啶-4-基)-5-氯-2-(4,4-二氟氮杂-1-基)-4-三氟甲基苯甲酰胺的制备
向5-氯-2-(4,4-二氟氮杂-1-基)-4-三氟甲基苯甲酰胺(12g,33.5mmol)的甲苯(100mL)溶液中加入化合物4-溴-N,N-二(4-甲氧苄基)吡啶-2-磺酰胺(16g,33.5mmol),Pd2(dba)3(2.3g,2.5mmol),BINAP(3.14g,5.0mmol)和碳酸铯(27.3g,84.0mmol),于85℃下搅拌16h;反应完毕用水(300mL)稀释反应体系,用乙酸乙酯(300mL×2)萃取,合并有机相,并用饱和食盐水(100mL)洗涤,无水硫酸钠干燥,抽滤,将滤液减压浓缩,所得粗品经硅胶柱层析纯化(乙酸乙酯/石油醚(v/v)=1/5)后得黄色固体N-(2-(N,N-二(4-甲氧苄基)胺磺酰基)吡啶-4-基)-5-氯-2-(4,4-二氟氮杂-1-基)-4-三氟甲基苯甲酰胺(20g,收率79%)。ESI-MS(m/z):753.2[M+H]+。
步骤d):5-氯-2-(4,4-二氟氮杂-1-基)-N-(2-氨磺酰基吡啶-4-基)-4-三氟甲基苯甲酰胺的制备
向N-(2-(N,N-二(4-甲氧苄基)胺磺酰基)吡啶-4-基)-5-氯-2-(4,4-二氟氮杂-1-基)-4-三氟甲基苯甲酰胺(7g,9.29mmol)的三氟乙酸(13mL)溶液中缓慢加入三氟甲磺酸(1mL,7.1mmol),于50℃下反应0.5h。反应完全后,将反应液缓慢滴加到冰水(100mL)中,搅拌0.5h,过滤得到粗品。粗品经C18反向柱(三氟乙酸体系)纯化后得白色固体(2.3g,收率48%)。1H NMR(400MHz,DMSO-d6)δ11.21(s,1H),8.63(d,J=5.2Hz,1H),8.31(s,1H),7.88-7.80(m,1H),7.76(s,1H),7.47(s,2H),7.36(s,1H),3.41-3.39(m,1H),3.36-3.34(m,1H),2.29-2.14(m,2H),2.12-1.98(m,2H),1.83-1.74(m,2H)。ESI-MS(m/z):513.2[M+H]+。
实施例32
2-(4-氟-2-甲基苯酚基)-N-(2-羰基-1,2-二氢吡啶-4-基)-4-(三氟甲基)苯甲酰胺(VX150母药)的制备
步骤a):2-氟-N-(2-甲氧基吡啶-4-基)-4-(三氟甲基)苯甲酰胺的制备
在氮气保护下,向2-氟-4-三氟甲基苯甲酸(1g,4.8mmol)、2-甲氧基-4-氨基吡啶(0.626g,5mmol)、HATU(2.741g,7.2mmol)的二氯甲烷(30mL)溶液中加入三乙胺(1.7g,16.8mmol),室温搅拌反应16h,反应完全后加入纯水50mL搅拌均匀,分液、取下层有机相留用,上层水相用二氯甲烷(30mL×3)萃取,再合并所有有机相,并用饱和NaCl溶液(30mL×2)洗涤,无水硫酸钠干燥、过滤,将滤液减压旋干,所得粗品经硅胶柱层析纯化(PE/EA(v/v)=8/1-3/1)得白色固体2-氟-N-(2-甲氧基吡啶-4-基)-4-(三氟甲基)苯甲酰胺(1.179g,收率78.1%)。
步骤b):2-氟-N-(2-羰基-1,2-二氢吡啶-4-基)-4-(三氟甲基)苯甲酰胺的制备
在氮气保护下,向2-氟-N-(2-甲氧基吡啶-4-基)-4-(三氟甲基)苯甲酰胺(0.5g,1.6mmol)中加入氢溴酸/冰乙酸溶液(10mL,33%),于100℃反应5h,随后室温反应12h,加入纯水40mL并搅拌30min,过滤,将滤饼用纯水(10mL×2)洗涤,50℃减压烘干得灰色固体2-氟-N-(2-羰基-1,2-二氢吡啶-4-基)-4-(三氟甲基)苯甲酰胺(0.215g,收率45%)。
步骤c):2-(4-氟-2-甲基苯酚基)-N-(2-羰基-1,2-二氢吡啶-4-基)-4-(三氟甲基)苯甲酰胺的制备
在氮气保护下,向2-氟-N-(2-羰基-1,2-二氢吡啶-4-基)-4-(三氟甲基)苯甲酰胺(0.21g,0.7mmol)、4-氟-2-甲基苯酚(0.261g,2mmol)、碳酸铯(0.684g,2mmol)中加入DMF(6mL),于80℃反应2h,反应完全后将体系冷却至室温,加入纯水50mL,搅拌30min,过滤,将滤饼依次用纯水(20mL×2)、石油醚(20mL×2)洗涤后减压烘干得0.278g粗品。将粗品用乙酸乙酯(约5mL)完全溶解并搅拌5min,缓慢滴加石油醚(约15mL),析出大量沉淀,继续搅拌2h,过滤,将滤饼用石油醚(10mL×2)洗涤后减压烘干得白色固体2-(4-氟-2-甲基苯酚基)-N-(2-羰基-1,2-二氢吡啶-4-基)-4-(三氟甲基)苯甲酰胺(0.212g,收率75.6%)。1H NMR(400MHz,DMSO-d6)δ11.29(s,1H),10.64(s,1H),7.84(d,J=7.9Hz,1H),7.60(d,J=8.5Hz,1H),7.31(d,J=7.2Hz,1H),7.27-7.20(m,1H),7.10(dd,J=6.7,3.1Hz,1H),6.97(s,1H),6.75(s,1H),6.38(dd,J=7.2,2.0Hz,1H),2.16(s,3H)。ESI-MS(m/z):407.2[M+H]+。
实施例33电生理学中定
膜片钳技术被称为研究离子通道的“金标准”,其利用玻璃微电极与细胞膜封接可中量多种膜通道电流。而Navs是一类跨膜蛋白,包含三种不同的状态,静息状态、激活状态、失活状态,膜片钳技术则通过中定不同化合物结合到Navs的不同状态上后膜通道电流的变化,来评估化合物对Navs不同状态的抑制强弱。
本发明的代表性化合物用转染特定离子通道的稳定CHO或HEK293细胞系,通过手动膜片钳试验中定化合物对Nav1.8电流的作用,进而评估其抑制强弱。
方法一:
手动膜片钳实验方案如下:
1)细胞培养
37℃恒温条件下,将稳定表达hNav1.8的CHO细胞系在含有10%胎牛血清的F12培养基中培养,并将二氧化碳浓度维持在5%。除去旧培养基并用PBS洗涤一次,然后加入1mL0.25%-Trypsin-EDTA溶液,37℃下孵育1min。当细胞从皿底脱离后,加入5mL 37℃预热的完全培养基,并用吸管轻轻吹打使聚集的细胞分离。将细胞悬液转移至无菌的离心管中,1000rpm离心5min收集细胞,再将细胞接种于直径为6cm的细胞培养皿中(2.5×105cells/培养皿,5mL培养基),扩增或维持培养。
为维持细胞的电生理活性,细胞密度必须低于80%。
实验前细胞用0.25%-Trypsin-EDTA分离,将5×103细胞铺到盖玻片上,在24孔板中培养(最终体积:500μL),18h后,进行实验检中。
2)制备化合物样品
将本发明实施例中制备的化合物溶解于二甲亚砜(DMSO)并配成浓度为10mM的DMSO储备液用于实验。10mM的DMSO储备液用细胞外液(140mM NaCl,3.5mM KCl,1mM MgCl2,2mM CaCl2,10mM Glucose,10mM HEPES,1.25mM NaH2PO4,NaOH调节pH=7.4)稀释至各种浓度,并使每种化合物中DMSO的最终浓度为0.1%或以下。
3)膜片钳中量钠离子通道阻滞效应
用微电极拉制仪(P97,Sutter Instruments)将毛细玻璃管(BF150-86-10,SutterInstruments)拉制成记录电极。在倒置显微镜(IX71,Olympus)下操纵微电极操纵仪(MP285,Sutter Instruments)将记录电极接触到细胞上,给予负压抽吸,形成GΩ封接。随后进行快速电容补偿,继续给予负压,吸破细胞膜,形成全细胞记录模式。然后进行慢速电容的补偿并记录膜电容及串联电阻,不给予漏电补偿。当全细胞记录的电流稳定后开始给药,每个药物浓度作用5分钟后检中下一个浓度,在记录期间独立重复检中多个细胞。所有电生理实验均在室温下进行。具体而言,每个化合物设置6个浓度(中IC50)或2个浓度(初步筛选),通过计算各浓度化合物处理细胞前后产生的峰值电流相对百分比来确定化合物对钠通道的抑制百分比,并利用IGOR pro软件计算IC50值或某特定浓度下的抑制百分比。
全细胞膜片钳记录hNav1.8钠通道电流的电压刺激方案如下:膜电位钳制于-120mV,命令电压从-130mV开始,以10mV为步阶维持8s,除极至0mV(或电流大小为0pA),维持30ms,中得半失活电压;当形成全细胞封接后细胞膜电压钳制于-120mV,钳制电压除极至0mV维持50ms,然后电压恢复至中得的半失活电压维持8s,接着细胞膜电位恢复至-120mV,维持时间为20ms,然后再除极至0mV维持50ms,最后恢复至钳制电压-120mV,维持30ms。每隔20s重复采集数据,观察药物对hNav1.8钠通道电流峰值的作用。
部分实施例化合物对hNav1.8的抑制活性(静息状态)计算结果如下表2所示。
表2实施例化合物对hNav1.8的抑制活性
编号 | IC50(nM) |
实施例01 | >100 |
实施例02 | 5.3 |
实施例03 | >10 |
实施例04 | 66.7 |
实施例05 | 8.9 |
实施例06 | 3.1 |
实施例07 | 14.7 |
实施例08 | 3.3 |
实施例09 | 1 |
实施例10 | 0.784 |
实施例14 | 0.34 |
实施例16 | 0.084 |
实施例17 | 0.095 |
实施例21 | 0.36 |
实施例32 | 16.0 |
表3实施例化合物对hNav1.8的抑制率
方法二:
人Nav1.8离子通道稳定地表达在HEK293细胞上,在Nav1.8电流稳定后,比较化合物应用前后Nav1.8电流的大小,可以得到化合物对NaV1.8离子通道的影响。
1)配方
化合物除用于酸碱滴定的NaOH和KOH外,均从Sigma(St.Louis,MO)公司购买。中试化合物精确称量后用DMSO配制成浓度为9mM的药液,最终浓度均在中试当天配制,再溶于细胞外液。细胞外液(mM)为:NaCl,137;KCl,4;CaCl2,1.8;MgCl2,1;HEPES,10;glucose 10;pH7.4(NaOH滴定)。所有中试化合物和对照化合物溶液均含1μM TTX。
2)中试方法
所有实验都在室温下进行,每个细胞都以自身为对照。化合物均采用利用自身重力的灌流系统进行灌流。每个浓度至少中试两个细胞。在电流稳定(或5min)后,再比较化合物使用前后的电流大小变化来计算化合物的阻断作用。
a)实验仪器
膜片钳放大器:patch clamp PC-505B(WARNER instruments)/MultiClamp 700A(Axon instrument)
数模转换器:Digidata 1440A(Axon CNS)/Digidata 1550A(Axon instruments)
微操控仪:MP-225(SUTTER instrument)
倒置显微镜:TL4(Olympus)
玻璃微电极拉制仪:PC-10(NARISHIGE)
微电极玻璃毛细管:B12024F(武汉微探科学仪器有限公司)
b)电生理
将细胞转移到灌流槽中,用细胞外液进行灌流。细胞内液(mM):Aspartic acid,140;MgCl2,
2;EGTA 11;HEPES,10;pH 7.2(CsOH滴定)。细胞内液分批少量储存于-80度冰箱,实验当天融化。电极用PC-10(Narishige,Japan)拉制。全细胞膜片钳记录,噪音用采样频率的五分之一进行过滤。
c)中试方案(静息状态)
将细胞钳制在–80mV,然后用持续10毫秒方波去极化到10mV,以得到Nav1.8电流(如附图1)。这一程序每5秒重复一次。检中方波引发的最大电流,待其稳定后,灌流中试化合物,当反应稳定后,计算阻断的强度。
部分实施例化合物对hNav1.8的抑制活性计算结果如下表3所示。
表4实施例化合物对hNav1.8的抑制活性
实施例34:动力学溶解度中定
1)储备液的配制
用DMSO配制待中物和标准品孕酮的10mM储备液。
2)溶解度中定步骤
取30μL 10mM待中物和标准品储备液,以指定顺序加到对应96孔板中。在样品板的对应小瓶加入970μL指定pH值的磷酸盐缓冲液,实验为双平行。在每个小瓶中加一根搅拌棒,并盖上聚四氟乙烯/硅有机树脂瓶塞。随后将样品盘放进Eppendorf ThermomixerComfort,以1100转的转速在25℃条件下震荡2小时。2小时后,去除瓶塞,用一块大磁铁吸走搅拌棒,然后从样品板中转移样品至过滤板。用真空泵产生负压,过滤样品。转移5μL滤液到新的样品板,然后加入5μL DMSO和490μL水/乙腈(V/V=1/1)稀释溶剂。稀释倍数可能因待中物溶解性的大小或其液质响应信号强弱而调整。
3)标准品溶液的配制
从10mM DMSO储备液中转移15μL至一空板中,加入485μL DMSO配成300μM的标准品溶液。从300μM的标准品溶液板中转移5μL到另一空板中,再加入5μL指定pH值的磷酸盐缓冲液和490μL水/乙腈(V/V=1/1)稀释溶剂至标准品溶液终浓度为3μM。标准品溶液的浓度有可能因其液质响应信号的强弱而调整。
4)样品分析步骤
将进样板放进自动进样器的进样盘中,通过液质分析评估样品。
5)数据分析
通过Microsoft Excel进行所有的计算。
样品滤液的分析和定量,是通过使用液质对已知浓度的标准品峰的定性和定量完成的。对照药和待中物的溶解度值计算公式如下:
[Sample]:样品浓度
AREASample:样品峰面积
INJ VOLStd:标准品进样体积
DFSample:样品稀释倍数
[STD]:标准品浓度
AREAStd:标准品峰面积
INJ VOLSample:样品进样体积
表5.实施例化合物动力学溶解度(单位:μM)(活性相当的化合物)
编号 | pH3.5 |
实施例02 | 2.80 |
实施例05 | 0.39 |
实施例06 | 0.39 |
实施例07 | 52.7 |
实施例08 | 175.0 |
实施例09 | 157.21 |
实施例13 | 3.38 |
实施例14 | 270.67 |
实施例24 | 9.88 |
实施例25 | 87.93 |
实施例26 | 127 |
实施例27 | 78.8 |
实施例28 | 131 |
实施例29 | <1.56 |
实施例30 | <0.18 |
实施例31 | 0.69 |
实施例32 | <1.56 |
实施例35:体外人肝微粒体稳定性中试方法
1.材料
人肝微粒体,购买于Corning或Xenotech,储存于-80℃冰箱。
还原型烟酰胺腺嘌呤二核苷酸磷酸(NADPH),供应商:Chem-impexinternational,货号:00616
对照化合物:睾酮,双氯芬酸,普罗帕酮
2.仪器
水浴锅(HH-60,Guohua,Changzhou,China)
移液工作站(PP-550DS,Apricot,Covina,USA)
离心机(5810R,Eppendorf,Hamburg,Germany)
质谱仪(Sciex API 4000,Singapore)
高效液相色谱(LC 20-AD,Shimadzu,Kyoto,Japan)
进样器(ADDA,Apricot Designs,California,USA)
3.实验步骤
3.1工作液的配制
储备液:10mM DMSO溶液
工作浓度配制:100%乙腈稀释到100μM(有机相含量:99%ACN,1%DMSO)
3.2实验步骤
准备2块96孔孵育板,分别命名为T60孵育板和NCF60孵育板。。
在T60孵育板和NCF60孵育板上分别加入445μL微粒体工作液(肝微粒体蛋白浓度为0.56mg/mL),然后将上述孵育板放置于37℃水浴锅中预孵育大约10分钟。
预孵育结束后,在T60孵育板和NCF60孵育板上分别加入5μL供试品化合物工作液,混匀。在NCF60孵育板上每孔添加50μL磷酸钾盐缓冲液启动反应;在T0终止板中加入180μL的终止液(含200ng/mL tolbutamide和200ng/mL labetalol的乙腈溶液)和6uL的NADPH再生体系工作液,从T60孵育板中取出54μL样品至T0终止板(T0样品产生)。在T60孵育板上每孔添加44μLNADPH再生体系工作液启动反应。在Blank板中只添加54μL微粒体工作液、6uL的NADPH再生体系工作液和180μL的终止液。因此,在供试品或对照化合物的样品中,化合物、睾酮、双氯芬酸和普罗帕酮的反应终浓度为1μM,肝微粒体的浓度为0.5mg/mL,DMSO和乙腈在反应体系中的终浓度分别为0.01%(v/v)和0.99%(v/v)。
孵育适当时间(如5、10、20、30和60分钟)后,分别在每个终止板的样品孔中加入180μL的终止液(含200ng/mL tolbutamide和200ng/mL labetalol的乙腈溶液),之后从T60孵育板中取出60μL样品以终止反应。
所有样品板摇匀并在3220×g离心20分钟,然后每孔取80μL上清液稀释到240μL纯水中用于液相色谱串联质谱分析。
4.液相色谱串联质谱分析
所有样品进样分析。肝微粒体稳定性结果如表6。
表6人肝微粒体稳定性(T1/2)实验结果如下:
编号 | T1/2(min) |
实施例1 | >145 |
实施例2 | 58.8 |
实施例3 | 79.3 |
实施例4 | 79.9 |
实施例5 | 93.7 |
实施例6 | >145 |
实施例7 | 63.9 |
实施例8 | 23 |
实施例9 | 22.3 |
实施例10 | 92.7 |
实施例14 | >145 |
实施例16 | 41.3 |
实施例17 | >145 |
实施例21 | 56.6 |
实施例24 | >145 |
实施例26 | 70 |
实施例27 | 135.7 |
实施例36大鼠术后痛模型中的药效中试
实验动物
Sprague-Dawley雄性大鼠,购自浙江维通利华实验动物技术有限公司
样品溶液配制
秤取适量本发明实施例化合物10、14、16、31,用溶剂5%DMSO(安徽泽升科技有限公司)+30%Solutol HS15(北京偶合科技有限公司)+65%注射用水配置成3mg/mL溶液,按照10mL/kg灌胃体积给药,给药剂量为30mg/kg。
实验过程
使用舒泰50+甲苯噻嗪盐酸盐(20mg/kg+8mg/kg,腹腔注射)麻醉动物。使用碘伏和70%乙醇对左后脚脚底手术区域皮肤消毒三遍,待皮肤干燥后开始手术。
距离左后脚脚跟0.5cm位置起,纵向向脚趾方向做一个约1cm长的切口,切开皮肤后抬起趾短屈肌并造成纵向钝性损伤,按压止血后,缝合伤口,手术后将动物放置在电热毯上,皮下注射5mL生理盐水以防止脱水。造模24h后,对所有动物(含正常对照组)进行机械痛觉基础值(PWT)中试,将没有表现出机械痛觉超敏的造模动物(PWT大于5g)剔除后选取50只随机分为5组,除正常组(阴性对照组)5只外,其余组每组9只。
称量动物体重,按照10mL/kg进行口服给药。除正常对照组的动物,其余动物单次给药1h、2h和4h后,使用中试纤维对所有组别动物进行机械痛觉中试。将大鼠单独放置在有机玻璃盒中,盒子底部为网格以保证大鼠脚部可以中试。在中试前大鼠将适应15分钟。适应完成后,使用中试纤维在大鼠左后脚脚底中心部位中试。将中试纤维垂直压向皮肤并施力使纤维弯曲6~8秒,每次中试间隔5秒。中试时,动物迅速缩脚被记为疼痛反应。中试纤维离开动物皮肤时动物缩脚也被记为疼痛反应。如果动物移动或走动,不记疼痛反应,应重复中试。
计算方式及数据处理
机械痛觉超敏在大鼠行为学中试中表述为缩脚阈值(PWT),按照如下公式计算:
50%反应阈值(g)=(10(Xf+k))/10,000
Xf=中试中使用的最终中试纤维值
k=表值(Chaplan et al.1994,page 62)
=平均差
使用Excel软件收集数据,使用Prism 7.0(Graph pad software,Inc.)软件分析数据。使用双因素方差分析,附加Dunnett多重比较检验。
结果
结果如图2所示。在本实验中,实施例化合物31在30mg/kg单次口服给药2小时和4小时后能抑制大鼠术后痛模型诱导的机械痛觉超敏。实施例化合物10、14、16在30mg/kg单次口服给药1小时,2小时和4小时后均能抑制大鼠术后痛模型诱导的机械痛觉超敏。化合物14在给药1小时和4小时后的药效显著强于实施例化合物31;实施例化合物16在给药1小时后的药效显著强于实施例化合物31。
注:*p<0.05,**p<0.01,***p<0.001与正常组比较;#p<0.05,###p<0.001与实施例化合物31比较。
Claims (29)
1.一种式(I)所示的化合物或其药学上可接受的盐:
式中,
X1、X2、Z1、Z2独立地选自取代或未取代的C或N;
R1独立地选自H、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3;其中R2、R3独立地选自氢、-NH2、-C1-3烷基;
环A为取代或未取代的苯环或6元芳杂环;
环B为取代或未取代的3-10元脂肪环或脂肪杂环。
2.如权利要求1所述的化合物或其药学上可接受的盐,其特征在于,X1、X2至少一个为N。
3.如权利要求1所述的化合物或其药学上可接受的盐,其特征在于,环A选自含有0-3个N原子的六元芳环或芳杂环,其中所述芳环或芳杂环任选被氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、羰基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3或-POR2R3取代;其中R2、R3独立地选自氢、-NH2、-NHCH3、-C1-3烷基。
4.如权利要求1所述的化合物或其药学上可接受的盐,其特征在于,环B选自含有0-3个选自N、O和S的杂原子的3-10元脂肪环或脂肪杂环,任选地,所述脂肪环或脂肪杂环被卤素、羰基、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-C3-C6环烷基、-C3-C6环杂烷基取代。
5.如权利要求1所述的化合物或其药学上可接受的盐,其特征在于,所述化合物如式II:
其中,X1、X2独立地选自C或N,且至少X1为N;
R1独立地选自H、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3;其中R2、R3独立地选自氢、-NH2、-C1-3烷基;
Y选自CH或N;
R5选自氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基或-C1-C6烷基氨基;
n为0-6的整数;
环A选自含有0-3个N原子的六元芳环或芳杂环,其中所述芳环或芳杂环任选被氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、羰基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3或-POR2R3取代;其中R2、R3独立地选自氢、-NH2、-NHCH3、C1-3烷基。
6.如权利要求5所述的化合物或其药学上可接受的盐,其特征在于,环A为
其中R4为氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3或-POR2R3;
R2、R3独立地选自氢、-NH2、-NHCH3、-C1-3烷基,或R2、R3与P一起形成3-8元环。
7.如权利要求1所述的化合物或其药学上可接受的盐,其特征在于,所述化合物如式III:
其中,X1、X2独立地选自C或N,且至少X1为N;
R1独立地选自H、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3;其中R2、R3独立地选自氢、NH2、C1-3烷基;
T为CR6或N;
R6为氢、卤素、C1-C6烷基;
R9为氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基、-C1-C6烷基氨基、-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3或-POR2R3;
R2、R3独立地选自氢、-NH2、-NHCH3、C1-3烷基,或R2、R3与P一起形成3-8元环;
R5选自氢、卤素、-NH2、-CN、-OH、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基或-C1-C6烷基氨基;
n为0-6的整数。
8.如权利要求7所述的化合物或其药学上可接受的盐,其特征在于,Y为N,n为1-4的整数。
9.如权利要求8所述的化合物或其药学上可接受的盐,其特征在于,n为3。
10.如权利要求7所述的化合物或其药学上可接受的盐,其特征在于,所述化合物如式IV:
其中,R10、R11独立地选自氢或卤素;
其他取代基定义如前所述。
11.如权利要求7-10中任一项所述的化合物或其药学上可接受的盐,其特征在于,R1独立地选自H、卤素、-C1-C6烷基、-C1-C6卤代烷基、-C1-C6烷氧基、-C1-C6卤代烷氧基。
12.如权利要求11所述的化合物或其药学上可接受的盐,其特征在于,R1独立地选自H、卤素、-CH3、-OCH3。
13.如权利要求12所述的化合物或其药学上可接受的盐,其特征在于,R1选自H或卤素。
14.如权利要求7所述的化合物或其药学上可接受的盐,其特征在于,X1为N,X2为C。
15.如权利要求7所述的化合物或其药学上可接受的盐,其特征在于,X1为N,X2为N。
16.如权利要求7所述的化合物或其药学上可接受的盐,其特征在于,R6为氢或卤素。
17.如权利要求7所述的化合物或其药学上可接受的盐,其特征在于,R9为-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3,其中R2、R3独立地选自氢、-NH2、-NHCH3、-C1-3烷基。
18.如权利要求7所述的化合物或其药学上可接受的盐,其特征在于,所述化合物如式V:
其中,R7、R8独立地选自H、卤素、-CH3、-OCH3;
R9选自-SO2R2、-S(O)(NH)R2、-COR2、-CONR2R3;
R2、R3独立地选自氢、-NH2、-NHCH3、-C1-3烷基;
T为CR6或N;
R6为氢、卤素、C1-C6烷基;
R10、R11独立地选自氢或卤素。
19.如权利要求18所述的化合物或其药学上可接受的盐,其特征在于,R9选自-SO2NH2、-CONH2。
20.如权利要求19所述的化合物或其药学上可接受的盐,其特征在于,R9选自-SO2NH2。
21.如权利要求18所述的化合物或其药学上可接受的盐,其特征在于,R7、R8独立地选自H或卤素。
22.如权利要求18所述的化合物或其药学上可接受的盐,其特征在于,R6为H。
23.如权利要求18所述的化合物或其药学上可接受的盐,其特征在于,R10、R11均为卤素。
24.如权利要求1-23任一项所述的化合物或其药学上可接受的盐,其特征在于,所述化合物选自:
25.如权利要求24所述的化合物或其药学上可接受的盐,其特征在于,所述化合物选自:
26.一种药物组合物,其特征在于包含权利要求1-25中任一项所述的化合物或其药学上可接受的盐,和药学上可接受的赋形剂。
27.如权利要求1-25中任一项所述的化合物或其药学上可接受的盐在在制备用于治疗疼痛的药物中的用途。
28.一种预防或治疗疼痛的方法,包括向所述患者给予权利要求1-25中任一项所述的化合物或其药学上可接受的盐。
29.根据权利要求28所述的用途或权利要求27所述的方法,其特征在于,所述疼痛为慢性疼痛、肠痛、神经性疼痛、肌肉骨骼痛、急性疼痛、炎性疼痛、癌症疼痛、原发性疼痛、手术后疼痛、内脏痛、多发性硬化症、夏-马-图三氏综合症、失禁或心律失常。
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