CN109879799B - 含有4-羰氧基哌啶基的氨磺酰基苯甲酰胺类化合物及其制备方法 - Google Patents
含有4-羰氧基哌啶基的氨磺酰基苯甲酰胺类化合物及其制备方法 Download PDFInfo
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- CN109879799B CN109879799B CN201711276332.2A CN201711276332A CN109879799B CN 109879799 B CN109879799 B CN 109879799B CN 201711276332 A CN201711276332 A CN 201711276332A CN 109879799 B CN109879799 B CN 109879799B
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- piperidin
- carbamoyl
- sulfonyl
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- 231100000283 hepatitis Toxicity 0.000 claims 1
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- 239000012634 fragment Substances 0.000 abstract description 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 2
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- 210000000234 capsid Anatomy 0.000 description 3
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Abstract
本发明涉及式(I)所示氨磺酰基苯甲酰胺类化合物,其制备方法和医药用途以及以其为有效成分的抗乙肝药物组合物。更具体地讲,本发明涉及一类含有4‑羰氧基哌啶基的氨磺酰基苯甲酰胺类化合物,其中,X1‑X5代表H或F,Y代表C1‑C6‑烷基、OC1‑C6‑烷基或各种含N片段。
Description
技术领域
本发明属于医药化学领域,涉及具有抗乙型肝炎病毒活性的氨磺酰基苯甲酰胺类化合物及其制备方法,以及含有它们的抗乙肝药物组合物;更具体地说,本发明涉及一类含有4-羰氧基哌啶基的氨磺酰基苯甲酰胺类化合物。
背景技术
慢性乙型肝炎病毒(HBV)感染是全球重大公共卫生问题。据估计,HBV的感染率约占全球人口的5%,每年死于HBV感染及其相关性肝脏疾病者约100万例。目前临床用抗HBV感染药物包括干扰素(免疫调节剂)核苷类药物(聚合酶抑制剂)。尽管这些药物可明显降低病毒载量并防止肝脏疾病的进展,但不能治愈HBV感染。因此,发现和开发具有全新作用机制的抗HBV药物是多年来该领域的研究热点。
值得庆幸的是,近年来人们在新型抗HBV药物的研发方面已取得显著进展。包括进入抑制剂(entry inhibitor)和病毒衣壳组装抑制剂(nucleocapsid inhibitor)等在内的若干具有不同作用机制的抗HBV候选物目前处于临床试验阶段,有望不久的将来用于临床治疗HBV感染。
病毒衣壳组装抑制剂通过靶向作用于病毒核衣壳和错误导向衣壳组装而抑制HBV的复制和病毒体的产生(Journal of Virology,2017,91:e00519-17)。迄今公开报道的病毒衣壳组装抑制剂包括杂芳基二氢嘧啶类化合物(HAP,如GLS4)、氨磺酰苯甲酰胺类化合物(SBA,如ENAN-34017)、苯丙烯酰胺类化合物(PPA,如AT-130)和苯甲酰胺类化合物(BA,如BA-38017)等。
2017年,美国NOVIRA制药公司(US2017/0182021A1)公开了具有以下通式[A]的氨磺酰基苯甲酰胺类化合物:
并对通式中的各取代基进行了广泛的定义,但磺酰胺片段中的氮杂环上的其中一个取代基必需含有游离羟基。
通式[A]中的优秀代表物是目前处于II期临床研究阶段的NVR3-778(结构未公开),我们推测其可能的结构如下所示(US 2017/0114018A1)。据报道,NVR3-778对健康志愿者和慢性HBV患者显示良好的安全性和耐受性(Hepatology,2014,60,1279A;Hepatology,2015,62,1385A-1386A)。遗憾的是,NVR3-778相关的其他药效学及药理学资料未见公开。
我们实验室合成了NVR3-778,并对其进行了相关研究。结果发现,NVR3-778对2.2.15细胞HBV DNA仅表现出中等程度的抑制活性(IC50:0.22μM),其选择性指数较低(SI:26.6)。因此,对NVR3-778进行科学的结构修饰以改善其抗HBV活性及提高选择性指数,进一步发挥其抗病毒疗效具有重要的临床价值。
为了克服上述现有技术所存在的缺陷,本发明人进行了广泛的研究,用各种取代酯基替代NVR3-778中哌啶环上的羟基,设计合成了一系列氨磺酰基苯甲酰胺类化合物,并测定了它们的体外抗HBV活性和细胞毒性。最终发现,不同于以往文献报道的含有4-羰氧基哌啶基的氨磺酰基苯甲酰胺类化合物具有意想不到的强抗HBV活性,与NVR3-778相比,具有更加优越的抗HBV活性和选择性指数。
发明内容
本发明的目的是提供一类由通式(I)表示的氨磺酰基苯甲酰胺类化合物或其药用盐,
其中:
X1-X5代表H、F或Cl;
Y代表C1-C6-烷基,OC1-C6-烷基,NH2或以下含N片段:
其中:
Z代表CH2、CHOH、CHNH2、CHNHCH3、O、S、NH、NCH3、NC2H5或N(CH2)2OH;
R1和R2代表H、CH3、CH2OH、CH2OCH3,R1和R2可以相同,也可以不相同;
R代表H、CH3、(CH3)2CH、(CH3)2CHCH2、C2H5CH(CH3)、C6H5CH2。
本发明的式(I)化合物在药学上可接受的非毒性的药用盐,包括式(I)所示化合物与无机酸或有机酸形成的盐。
其中,无机酸,如盐酸、硫酸与式(I)化合物形成的盐;
其中,有机酸,如乙酸、三氟乙酸、柠檬酸、马来酸、草酸、琥珀酸、苯甲酸、酒石酸、富马酸、扁桃酸、抗坏血酸、苹果酸、甲磺酸、对甲苯磺酸与式(I)化合物形成的盐。
优选的,本发明具体包括以下化合物:
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基哌嗪-1-甲酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基4-甲基哌嗪-1-甲酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基4-乙基哌嗪-1-甲酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基4-(2-羟乙基)哌嗪-1-甲酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基乙基(2-羟基乙基)氨基甲酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基(叔丁氧羰基)L-丙氨酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基(叔丁氧羰基)L-缬氨酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基(叔丁氧羰基)L-亮氨酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基(叔丁氧羰基)L-异亮氨酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基(叔丁氧羰基)L-苯丙氨酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基L-丙氨酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基L-缬氨酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基L-亮氨酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基L-异亮氨酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基L-苯丙氨酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(叔丁氧羰基-L-缬氨酰氧基)乙酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(L-缬氨酰氧基)乙酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(2-吗啉基乙酰氧基)乙酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(2-硫代吗啉基乙酰氧基)乙酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(2-(哌啶-1-基)乙酰氧基)乙酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(2-(哌嗪-1-基)乙酰氧基)乙酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(2-(4-甲基哌嗪-1-基)乙酰氧基)乙酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(2-(4-乙基哌嗪-1-基)乙酰氧基)乙酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(二乙基甘氨酰氧基)乙酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基乙酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基异丁酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基特戊酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基异丙氧甲酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基叔丁氧甲酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基氨基甲酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基二甲基氨基甲酸酯;
1-((3-((3,4-二氟苯基)氨基甲酰基)-4-氟苯基)磺酰基)哌啶-4-基异丁酸酯;
1-((3-((3,4-二氟苯基)氨基甲酰基)-4-氟苯基)磺酰基)哌啶-4-基叔丁氧甲酸酯;
1-((3-((3,4-二氟苯基)氨基甲酰基)-4-氟苯基)磺酰基)哌啶-4-基(叔丁氧羰基)L-缬氨酸酯;
1-((3-((3,4-二氟苯基)氨基甲酰基)-4-氟苯基)磺酰基)哌啶-4-基L-缬氨酸酯;
1-((4-氯-3-((3,4-二氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基(叔丁氧羰基)L-缬氨酸酯;
1-((4-氯-3-((3,4-二氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基L-缬氨酸酯。
本发明的另一个目的在于提供式(I)化合物或其药用盐的制备方法。
反应路线如下所示:
在上述反应路线中,X1-X5和Y如前述的定义。
本发明的制备方法,包括以下步骤:
在非极性溶剂中加入脱水剂和催化剂,将式(Ⅱ)化合物与式(III)化合物加入到上述溶剂中进行缩合反应,用过量的式(III)化合物来满足反应需要,在-5℃~40℃,有或无压力条件下搅拌反应2~30小时,得到式(I)化合物,
其中,所述的非极性溶剂选自二氯甲烷、三氯甲烷、乙醚、二氧六环或四氢呋喃;所述的脱水剂选自二环己基碳二亚氨(DCC);所述的催化剂选自4-二甲氨基吡啶(DMAP)。
在本发明中用作起始物的式(II)化合物为已知化合物,并参考现有出版物中已知的方法可容易地制得,例如US 2017/018202A1;US 2017/0114018A1。式(III)化合物也为已知化合物,并参考现有出版物中已知的方法可容易地制得,例如Subbaiah M A M等,Euro JMed Chem,2017,139:865;Zhang T等,Molecules,2014,19:6822;Wei Z等,Molecules,2013,18:3872。
本发明的另一个目的在于提供式(I)所示化合物或其药用盐在制备治疗乙肝的药物中的应用。
本发明的另一个目的在于以式(I)所示化合物或其药用盐为活性成分的药物组合物。
本发明的药物组合物中,式(I)所示化合物或其药用盐的重量比为0.1~99.9%,药物可接受的载体在组合物中的重量比为0.1~99.9%。
本发明的药物组合物,作为制剂形式,每剂中含有的本发明化合物的有效量为0.1~1000mg,所述每剂指的是,每一制剂单位,如片剂的每片,胶囊的每粒,也可指每次服用剂量,如每次服用100mg。
本发明的药物组合物可以制备成任何可药用的剂型。
优选的,本发明的药用剂型选自:片剂、胶囊剂、颗粒剂、糖浆剂、粉针剂、注射剂。
在制备成粉剂、片剂、可分散粉剂、胶囊、扁囊剂、栓剂和软膏形式的固体或半固体药物制剂时,可使用固体载体。可使用的固体载体优选为选自稀释剂、调味剂、增溶剂、润滑剂、悬浮剂、粘合剂、膨胀剂等中的一种或多种物质,或可为包封物质。在粉状制剂中,在载体中含有5~70%的微粒化活性成分。适宜的固体载体包括碳酸镁、硬脂酸镁、滑石粉、蔗糖、乳糖、果胶、糊精、淀粉、明胶、甲基纤维素、羧甲基纤维素钠、低沸点蜡、可可脂等。由于它们易于给药,片剂,粉剂、扁囊剂和胶囊等代表最有利的口服固体制剂。
本发明的液体制剂包括溶液、悬液和乳液。例如,非胃肠道给药的注射制剂可为水或水-丙二醇溶液形式,调节其等渗度,pH等使适于活体的生理条件。液体制剂还可制成在聚乙二醇、水溶液中的溶液形式。可通过将活性成分溶解在水中,再加入适量的着色剂、调味剂、稳定剂和增稠剂,来制备口服水溶液。可将微粒化的活性成分分散在粘性物质如天然和合成胶、甲基纤维素、羧甲基纤维素钠和其它已知悬浮剂中制备适于口服的水悬液。
为了易于给药及剂量均一,将上述药物制剂配制成剂量单位形式是特别有利的。制剂的剂量单位形式指适于作为单一剂量的物理分离单位,每个单位含有产生所期望的治疗效果的计算好的预定量的活性成分。这种剂量单位形式可为包装形式,如片剂、胶囊或装在小管或小瓶中的粉剂,或装在管或瓶中的软膏、凝胶或霜剂。
虽然剂量单位形式中所含活性成分的量可以变化,但一般根据所选择活性成分的效力,调节在1~800mg范围内。
本领域技术人员可按常规方法确定适于某种情况的优选剂量。一般,开始治疗的量低于活性成分的最佳剂量,然后逐渐增加给药剂量,直到达到最佳治疗效果。为治疗需要,总的日剂量可一次给药或分数次给药。
本发明式(I)所示的含有4-羰氧基哌啶基的氨磺酰基苯甲酰胺类化合物具有显著的强抗HBV活性,与NVR3-778相比,具有更加优越的抗HBV活性和选择性指数。
具体实施方式
以下实施例用于进一步解释和说明本发明,但不能用来限制本发明的范围。
实施例1.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基4-甲基哌嗪-1-甲酸酯
制备路线如上所示,步骤1:室温下向化合物A(50mg,0.12mmol,可参照US20170114018A1合成)的二氯甲烷(5mL)溶液中加入三乙胺(50μL,0.36mmol)和对硝基苯基氯甲酸酯(48mg,0.24mmol),同温搅拌过夜,饱和碳酸氢钠水溶液淬灭,二氯甲烷萃取,饱和食盐水洗涤,无水硫酸镁干燥,过滤。滤液浓缩,残余物经硅胶柱层析得中间体化合物B为白色固体(53mg,74%)。
步骤2:室温下,向化合物B(50mg,0.08mmol)的二氯甲烷(5mL)溶液中加入N-甲基哌嗪(13μL,0.12mmol),同温搅拌过夜,饱和碳酸氢钠水溶液淬灭,二氯甲烷萃取,饱和食盐水洗涤,无水硫酸镁干燥,过滤。滤液浓缩,残余物经硅胶柱层析得上述目标化合物C为白色固体(29mg,64%),1H NMR(400MHz,CD3OD)δ8.42(d,J=5.6Hz,1H),8.26-8.24(m,1H),7.60(d,J=6.4Hz,1H),7.57(d,J=6.4Hz,1H),7.53-7.49(m,1H),4.93-4.90(m,1H),3.41-3.39(m,2H),3.30-3.28(m,2H),3.20-3.10(m,4H),2.27-2.20(m,4H),2.15(s,3H),2.01-1.95(m,2H),1.83-1.70(m,2H),;ESI-MS 581[M+Na]+.
将标题化合物(56mg,0.10mmol)溶于5mL干燥二氧六环中,通入氯化氢气体,室温搅拌4h。减压蒸干,残余物中加入乙醇,0℃下搅拌15min,然后加入乙醚,0℃下继续搅拌30min,抽滤,滤饼用少量乙醚淋洗,35℃真空干燥,得1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基4-甲基哌嗪-1-甲酸酯盐酸盐50mg,产率为84%。
元素分析测试:
C<sub>24</sub>H<sub>27</sub>ClF<sub>4</sub>N<sub>4</sub>O<sub>5</sub>S.HCl | C | H | N | S | Cl |
计算值(%) | 48.45 | 4.57 | 9.42 | 8.39 | 5.96 |
实测值(%) | 48.47 | 4.56 | 9.45 | 8.40 | 5.95 |
类似地也可以制备下述的盐,例如:
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基4-甲基哌嗪-1-甲酸酯富马酸盐;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基4-甲基哌嗪-1-甲酸酯苹果酸盐。
实施例2.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基4-乙基哌嗪-1-甲酸酯
制备方法同实施例1,使用N-乙基哌嗪代替N-甲基哌嗪制得上述化合物为白色固体,收率70%,1H NMR(400MHz,CD3OD)δ8.55(d,J=5.6Hz,1H),8.26-8.24(m,1H),7.61(d,J=6.4Hz,1H),7.57(d,J=6.4Hz,1H),7.53-7.49(m,1H),4.93-4.90(m,1H),3.41-3.39(m,2H),3.30-3.28(m,2H),3.20-3.10(m,4H),2.27-2.20(m,6H),2.01-1.95(m,2H),1.83-1.70(m,2H),1.03(t,J=6.9Hz,3H);ESI-MS 595[M+Na]+.
实施例3.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基哌嗪-1-甲酸酯
制备路线见上所示,步骤1:参照实施例1方法,使用N-Boc哌嗪代替N-甲基哌嗪制得Boc保护的化合物B,白色固体,收率65%。
步骤2:向化合物B(30mg,0.05mmol)的二氯甲烷溶液中加入三氟乙酸,室温搅拌1小时,浓缩。残余物溶于二氯甲烷溶液中,饱和碳酸氢钠溶液洗涤,无水硫酸钠干燥,浓缩。残余物经硅胶柱层析(二氯甲烷:甲醇=20:1)得上述化合物为白色固体(23mg,收率83%),1H NMR(400MHz,CD3OD)δ8.50(d,J=5.6Hz,1H),8.28-8.24(m,1H),7.60(d,J=6.4Hz,1H),7.57(d,J=6.4Hz,1H),7.53-7.49(m,1H),4.93-4.90(m,1H),3.41-3.39(m,2H),3.30-3.28(m,2H),3.20-3.10(m,4H),2.81-2.68(m,4H),2.15(s,3H),2.01-1.95(m,2H),1.83-1.70(m,2H);ESI-MS 567[M+Na]+.
实施例4.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基4-(2-羟乙基)哌嗪-1-甲酸酯
制备方法同实施例1,使用N-(2-羟乙基)哌嗪代替N-甲基哌嗪制得上述化合物为白色固体,收率78%,1H NMR(400MHz,CD3OD)δ8.45(d,J=5.6Hz,1H),8.26-8.24(m,1H),7.63(d,J=6.4Hz,1H),7.60(d,J=6.4Hz,1H),7.53-7.49(m,1H),4.93-4.90(m,1H),3.46(t,J=6.8Hz,2H),3.41-3.39(m,2H),3.30-3.28(m,2H),3.20-3.10(m,4H),2.58(t,J=6.8Hz,2H),2.52-2.47(m,4H),2.01-1.95(m,2H),1.83-1.70(m,2H),1.03(t,J=6.9Hz,3H);ESI-MS 611[M+Na]+.
实施例5.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基乙基(2-羟基乙基)氨基甲酸酯
制备方法同实施例1,使用乙基羟乙胺代替N-甲基哌嗪制得上述化合物为白色固体,收率78%,1H NMR(400MHz,CD3OD)δ8.42(d,J=5.6Hz,1H),8.26-8.24(m,1H),7.60(d,J=6.4Hz,1H),7.57(d,J=6.4Hz,1H),7.53-7.49(m,1H),4.93-4.90(m,1H),3.62(t,J=7.0Hz,2H),3.41-3.39(m,2H),3.30-3.24(m,4H),3.07(t,J=6.8Hz,2H),2.01-1.95(m,2H),1.83-1.70(m,2H),1.17(q,J=6.8Hz,3H);ESI-MS 570[M+Na]+.
实施例6.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基(叔丁氧羰基)L-缬氨酸酯
室温下,向化合物A(100mg,0.23mmol)的二氯甲烷(10mL)溶液中加入DCC(72mg,0.35mmol),DMAP(3mg,0.02mmol),以及Boc-L-缬氨酸(75mg,0.35mmol),同温搅拌5小时。将反应液浓缩,硅胶柱层析(石油醚:乙酸乙酯=2:1)得上述化合物为白色固体(139mg,收率95%),mp:113-114℃;1H NMRδ8.49(brs,1H),8.26(d,J=4.5Hz,1H),8.18(s,1H),7.45-7.42(m,2H),7.36-7.33(m,1H),4.94(s,1H),4.12-4.10(m,1H),3.38(brs,2H),3.25(brs,2H),1.93(brs,2H),1.76(brs,2H),1.41(s,9H),0.92(d,J=6.5Hz,3H),0.84(d,J=6.5Hz,3H);ESI-MS:654[M+Na]+.
实施例7.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基(叔丁氧羰基)L-亮氨酸酯
制备方法同实施例6,使用Boc-L-亮氨酸代替Boc-L-缬氨酸制得上述白色固体化合物,收率90%,mp:133-135℃,1H NMRδ8.66(brs,1H),8.28(s,1H),8.19(s,1H),7.45(brs,2H),7.33-7.30(m,1H),4.91(s,1H),4.19-4.18(m,1H),3.36(brs,2H),3.23(brs,2H),1.92-1.85(m,2H),1.77(brs,2H),1.64-1.45(m,3H),1.39(s,9H),0.90(d,J=6.0Hz,6H);ESI-MS 667[M+Na]+.
实施例8.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基(叔丁氧羰基)L-异亮氨酸酯
制备方法同实施例6,使用Boc-L-异亮氨酸代替Boc-L-缬氨酸制得上述白色固体化合物,收率85%,1H NMRδ8.52(s,1H),8.27(d,J=4.5Hz,1H),8.17(brs,1H),7.44(d,J=6.5Hz,1H),7.42(d,J=8.5Hz,1H),7.33(d,J=8.8Hz,1H),4.97-4.94(m,2H),4.17(s,1H),3.35(brs,2H),3.24(brs,2H),1.92(brs,2H),1.78-1.72(m,3H),1.40(s,9H),1.35-1.11(m,2H),0.89-0.86(m,6H).
实施例9.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基(叔丁氧羰基)L-丙氨酸酯
制备方法同实施例6,使用Boc-L-丙氨酸代替Boc-L-缬氨酸制得上述化合物为白色固体,收率85%,1H NMR(400MHz,CD3OD)δ8.42(d,J=5.6Hz,1H),8.26-8.24(m,1H),7.60(d,J=6.4Hz,1H),7.57(d,J=6.4Hz,1H),7.53-7.49(m,1H),4.93(brs,1H),4.05-4.03(m,1H),3.41-3.39(m,2H),3.30-3.28(m,2H),2.01-1.95(m,2H),1.83-1.70(m,2H),1.69(s,9H),1.28(d,J=7.3Hz,3H);ESI-MS 625[M+Na]+.
实施例10.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基(叔丁氧羰基)L-苯丙氨酸酯
制备方法同实施例6,使用Boc-L-苯并氨酸代替Boc-L-缬氨酸制得上述白色固体化合物,收率85%,1H NMR(600MHz,CDCl3)δ8.24(brs,1H),8.18(brs,1H),8.01(brs,1H),7.43-7.40(m,3H),7.37-7.30(m,3H),7.11-7.09(m,2H),4.95-4.90(m,2H),4.48(brs,1H),3.26-3.19(m,3H),3.09-2.96(m,3H),1.89-1.75(m,4H),1.40(s,9H);ESI-MS 680[M+H]+.
实施例11.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基L-缬氨酸酯
制备方法如上所示,向实施例6化合物A(30mg,0.047mmol)的二氯甲烷(5mL)溶液中加入三氟乙酸(1mL),室温搅拌1小时,浓缩。残余物溶于二氯甲烷溶液中,饱和碳酸氢钠溶液洗涤,无水硫酸钠干燥,浓缩。残余物经硅胶柱层析(二氯甲烷:甲醇=20:1)得上述化合物为白色固体(23mg,收率92%),1H NMR(400MHz,CD3OD)δ8.40(dd,J=2.3Hz,6.6Hz,1H),8.25-8.21(m,1H),7.58-7.54(m,2H),7.51-7.46(dd,J=8.8Hz,9.8Hz,1H),4.94-4.90(m,1H),3.49-3.38(m,2H),3.28-3.20(m,3H),2.05-1.89(m,3H),1.80-1.73(m,2H),0.90(d,J=6.9Hz,3H),0.85(d,J=6.9Hz,3H).
实施例12.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基L-亮氨酸酯
制备方法同实施例11,使用实施例7化合物代替实施例6化合物制得上述化合物为白色固体,收率75%,1H NMR(400MHz,CD3OD)δ8.40(dd,J=2.3Hz,6.6Hz,1H),8.25-8.21(m,1H),7.58-7.54(m,2H),7.51-7.46(dd,J=8.8Hz,9.8Hz,1H),4.91(s,1H),4.19-4.18(m,1H),3.36(brs,2H),3.23(brs,2H),1.92-1.85(m,2H),1.77(brs,2H),1.64-1.45(m,3H),0.90(d,J=6.0Hz,6H);ESI-MS 667[M+Na]+.
实施例13.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基L-异亮氨酸酯
制备方法同实施例11,使用实施例8化合物代替实施例6化合物制得上述化合物为白色固体,收率90%,1H NMR(400MHz,CD3OD)δ8.40(dd,J=2.3Hz,6.6Hz,1H),8.25-8.21(m,1H),7.58-7.54(m,2H),7.51-7.46(dd,J=8.8Hz,9.8Hz,1H),4.97-4.94(m,2H),4.17(s,1H),3.35(brs,2H),3.24(brs,2H),1.92(brs,2H),1.78-1.72(m,3H),1.35-1.11(m,2H),0.89-0.86(m,6H);ESI-MS 568[M+Na]+。
实施例14.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基L-丙氨酸酯
制备方法同实施例11,使用实施例9化合物代替实施例6化合物制得上述化合物为白色固体,收率89%,1H NMR(400MHz,CD3OD)δ8.40(dd,J=2.3Hz,6.6Hz,1H),8.25-8.21(m,1H),7.58-7.54(m,2H),7.51-7.46(dd,J=8.8Hz,9.8Hz,1H),4.93(brs,1H),4.05-4.03(m,1H),3.41-3.39(m,2H),3.30-3.28(m,2H),2.01-1.95(m,2H),1.83-1.70(m,2H),1.69(s,9H),1.28(d,J=7.3Hz,3H);ESI-MS 525[M+Na]+.
实施例15.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基L-苯丙氨酸酯
制备方法同实施例11,使用实施例9化合物代替实施例6化合物制得上述化合物为白色固体,收率89%,1H NMR(600MHz,CDCl3)δ8.24(brs,1H),8.18(brs,1H),8.01(brs,1H),7.43-7.40(m,3H),7.37-7.30(m,3H),7.11-7.09(m,2H),4.95-4.90(m,2H),4.48(brs,1H),3.26-3.19(m,3H),3.09-2.96(m,3H),1.89-1.75(m,4H);ESI-MS 579[M+H]+.
实施例16.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(叔丁氧羰基-L-缬氨酰氧基)乙酸酯
上述化合物的合成路线如上所示,具体合成方法如下:
步骤1,向化合物A(2g,4.62mmol)的二氯甲烷(100mL)溶液中加入N,N-二甲氨基吡啶(1.7g,13.86mmol),冰浴下搅拌5分钟,向反应液中缓慢滴加氯乙酰氯(0.8mL,10mmol),滴毕同温搅拌4小时,1N的盐酸水溶液(20mL)淬灭,二氯甲烷萃取。有机依次层经水、和饱和碳酸氢钠溶液洗涤,无水硫酸镁干燥,过滤。滤液浓缩,硅胶柱层析得上述路线中化合物B为淡黄色固体(1.5g,65%)。
步骤2,冰浴下,向N-Boc-γ-氨基丁酸(400mg,2.0mmol)的四氢呋喃(20mL)的溶液中加入叔丁醇钾(2.0mL,1N的正丁醇溶液),同温搅拌1小时,浓缩。向残余物中加入石油醚后,再次浓缩。向残余物中加入N,N-二甲基甲酰胺(10mL)和化合物B(762mg,1.5mmol),室温搅拌过夜,向反应液中加入水(100mL),二氯甲烷萃取。有机层经饱和食盐水洗涤,无水硫酸镁干燥,过滤。滤液浓缩,硅胶柱层析得上述路线中化合物C为淡黄色固体(675mg,67%)。
步骤3,冰浴下,向化合物C(500mg,0.74mmol)的二氯甲烷(10mL)溶液中加入三氟乙酸(1mL),室温搅拌2小时,浓缩。向残余物中加入二氯甲烷,再次浓缩。残余物溶于二氯甲烷(10mL)中,向反应液中加入碳酸钾(207mg,1.5mmol),室温搅拌过夜,过滤。滤液浓缩,硅胶柱层析得上述路线化合物D为淡黄色固体(294mg,81%)。
步骤4,室温下,向化合物D(113mg,0.23mmol)的二氯甲烷(5mL)溶液中加入DCC(72mg,0.35mmol),DMAP(3mg,0.02mmol),以及Boc-L-缬氨酸(75mg,0.35mmol),同温搅拌5小时。将反应液浓缩,硅胶柱层析得上述目标化合物E为白色固体(115mg,收率73%),1HNMR(600MHz,CD3OD)δ8.49(brs,1H),8.26(d,J=4.5Hz,1H),8.18(s,1H),7.45-7.42(m,2H),7.36-7.33(m,1H),5.04(s,2H),4.94-4.90(m,1H),4.12-4.10(m,1H),3.38(brs,2H),3.25(brs,2H),1.93(brs,2H),1.76(brs,2H),1.41(s,9H),0.92(d,J=6.5Hz,3H),0.84(d,J=6.5Hz,3H);ESI-MS:690[M+H]+.
实施例17.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(L-缬氨酰氧基)乙酸酯
制备方法如上所示,向实施例16化合物A(30mg,0.043mmol)的二氯甲烷(5mL)溶液中加入三氟乙酸(1mL),室温搅拌1小时,浓缩。残余物溶于二氯甲烷溶液中,饱和碳酸氢钠溶液洗涤,无水硫酸钠干燥,浓缩。残余物经硅胶柱层析(二氯甲烷:甲醇=20:1)得上述化合物为白色固体(23mg,收率89%),1H NMRδ8.49(brs,1H),8.26(d,J=4.5Hz,1H),8.18(s,1H),7.45-7.42(m,2H),7.36-7.33(m,1H),5.04(s,2H),4.94-4.90(m,1H),4.12-4.10(m,1H),3.38(brs,2H),3.25(brs,2H),1.93(brs,2H),1.76(brs,2H),0.92(d,J=6.5Hz,3H),0.84(d,J=6.5Hz,3H);ESI-MS:590[M+H]+.
实施例18.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(2-吗啉基乙酰氧基)乙酸酯
上述化合物的合成路线如上所示,具体合成方法如下:
步骤1,参照实施例16方法合成化合物B。
步骤4,冰浴下向化合物B(200mg,0.41mmol)的二氯甲烷(5mL)溶液中加入N,N-二甲氨基吡啶(98mg,0.8mmol),冰浴下搅拌5分钟,向反应液中缓慢滴加氯乙酰氯(47μL,0.6mmol),滴毕同温搅拌4小时,1N的盐酸水溶液(20mL)淬灭,二氯甲烷萃取。有机层依次经水、和饱和碳酸氢钠溶液洗涤,无水硫酸镁干燥,过滤。滤液浓缩,硅胶柱层析得上述路线中化合物C为淡黄色固体(198mg,85%)。
步骤5,冰浴下,向化合物C(50mg,0.088mmol)的N,N-二甲基甲酰胺(1mL)溶液中加入吗啉(8.7μL,0.1mmol),室温搅拌过夜。向反应液中加入水(10mL),乙酸乙酯萃取,水洗,无水硫酸镁干燥,过滤。滤液浓缩,硅胶柱层析得上述目标实施例化合物D为淡黄色固体(30mg,57%),1H NMR(400MHz,CD3OD)δ8.40(dd,J=2.3Hz,6.6Hz,1H),8.25-8.21(m,1H),7.58-7.54(m,2H),7.51-7.46(dd,J=8.8Hz,9.8Hz,1H),5.22-5.20(m,1H),4.95(s,2H),3.65(brs,2H),3.53(brs,2H),3.38(brs,2H),3.30(s,2H),3.25(brs,2H),2.86(brs,2H),2.55(brs,2H),1.93(brs,2H),1.76(brs,2H).
实施例19.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(2-硫代吗啉基乙酰氧基)乙酸酯
制备方法同实施例18,使用硫代吗啉代替吗啉制得上述化合物为淡黄色色固体,收率89%,1H NMR(400MHz,CD3OD)δ8.40(dd,J=2.3Hz,6.6Hz,1H),8.25-8.21(m,1H),7.58-7.54(m,2H),7.51-7.46(dd,J=8.8Hz,9.8Hz,1H),5.22-5.20(m,1H),4.95(s,2H),3.38(brs,2H),3.30(s,2H),3.25(brs,2H),2.86(brs,2H),2.55(brs,2H),2.32(brs,2H),2.00(brs,2H),1.93(brs,2H),1.76(brs,2H).
实施例20.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(2-(哌啶-1-基)乙酰氧基)乙酸酯
制备方法同实施例18,使用哌啶代替吗啉制得上述化合物为淡黄色色固体,收率48%,1H NMR(400MHz,CD3OD)δ8.40(dd,J=2.3Hz,6.6Hz,1H),8.25-8.21(m,1H),7.58-7.54(m,2H),7.51-7.46(dd,J=8.8Hz,9.8Hz,1H),5.22-5.20(m,1H),4.95(s,2H),3.38(brs,2H),3.25(brs,2H),2.50-2.36(m,4H),1.93(brs,2H),1.76(brs,2H),1.58-1.40(m,6H).
实施例21.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(2-(哌嗪-1-基)乙酰氧基)乙酸酯
制备路线见上所示,参照实施例18方法,使用N-Boc哌嗪代替吗啉制得N-Boc保护的化合物B,收率75%。室温下,向N-Boc保护的化合物B(20mg,0.028mmol)的二氯甲烷溶液中加入三氟乙酸,同温搅拌1小时,浓缩,加入二氯甲烷,再次浓缩。残余物经制备薄层析得上述目标化合物C,1H NMR(400MHz,CD3OD)δ8.40(dd,J=2.3Hz,6.6Hz,1H),8.25-8.21(m,1H),7.58-7.54(m,2H),7.51-7.46(dd,J=8.8Hz,9.8Hz,1H),5.22-5.20(m,1H),4.95(s,2H),3.38(brs,2H),3.32(s,2H),3.25(brs,2H),2.65-2.48(m,4H),2.38-2.22(m,4H),1.93(brs,2H),1.76(brs,2H)。
实施例22.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(2-(4-甲基哌嗪-1-基)乙酰氧基)乙酸酯
制备方法同实施例18,使用4-甲基哌嗪代替吗啉制得上述化合物为淡黄色色固体,收率48%,1H NMR(400MHz,CD3OD)δ8.40(dd,J=2.3Hz,6.6Hz,1H),8.25-8.21(m,1H),7.58-7.54(m,2H),7.51-7.46(dd,J=8.8Hz,9.8Hz,1H),5.22-5.20(m,1H),4.95(s,2H),3.38(brs,2H),3.33(s,2H),3.25(brs,2H),2.38-2.22(m,8H),2.14(s,3H),1.93(brs,2H),1.76(brs,2H)。
实施例23.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(2-(4-乙基哌嗪-1-基)乙酰氧基)乙酸酯
制备方法同实施例18,使用4-乙基基哌嗪代替吗啉制得上述化合物为淡黄色色固体,收率48%,1H NMR(400MHz,CD3OD)δ8.40(dd,J=2.3Hz,6.6Hz,1H),8.25-8.21(m,1H),7.58-7.54(m,2H),7.51-7.46(dd,J=8.8Hz,9.8Hz,1H),5.22-5.20(m,1H),4.95(s,2H),3.38(brs,2H),3.33(s,2H),3.25(brs,2H),2.38-2.22(m,8H),2.38(q,J=8.0Hz,2H),1.93(brs,2H),1.76(brs,2H),1.03(t,J=8.0Hz,3H);ESI-MS 645[M+H]+。
实施例24.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(二乙基甘氨酰氧基)乙酸酯
制备方法同实施例18,使用乙二胺代替吗啉制得上述化合物为淡黄色色固体,收率43%,1H NMR(400MHz,CD3OD)δ8.40(dd,J=2.3Hz,6.6Hz,1H),8.25-8.21(m,1H),7.58-7.54(m,2H),7.51-7.46(dd,J=8.8Hz,9.8Hz,1H),5.22-5.20(m,1H),4.95(s,2H),3.38(brs,2H),3.30(s,2H),3.25(brs,2H),2.64(q,J=7.8Hz,4H),1.93(brs,2H),1.76(brs,2H),1.02(t,J=7.8Hz,6H);ESI-MS 604[M+H]+。
实施例25.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基乙酸酯
向化合物A(50mg,0.115mmol)的二氯甲烷(5mL)溶液中加入吡啶(24μL,0.30mmol),乙酰氯(15μL,0.2mmol),室温搅拌1小时,1N盐酸水溶液(5mL)淬灭,二氯甲烷萃取,无水硫酸钠干燥,过滤。滤液浓缩,制备薄层析得上述目标化合物为白色固体,1H NMR(400MHz,CD3OD)δ8.40(dd,J=2.3Hz,6.6Hz,1H),8.25-8.21(m,1H),7.58-7.54(m,2H),7.51-7.46(dd,J=8.8Hz,9.8Hz,1H),5.22-5.20(m,1H),4.95(s,2H),3.38(brs,2H),3.25(brs,2H),2.02(s,3H),1.93(brs,2H),1.76(brs,2H)。
实施例26.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基异丁酸酯
室温下,向化合物A(100mg,0.23mmol)的二氯甲烷(10mL)溶液中加入DCC(72mg,0.35mmol),DMAP(3mg,0.02mmol),以及异丁酸(32μL,0.35mmol),同温搅拌5小时。将反应液浓缩,硅胶柱层析(石油醚:乙酸乙酯=2:1)得上述化合物为白色固体(100mg,收率86%),1H NMR(600MHz,CD3OD)δ8.45(dd,J=2.3Hz,6.6Hz,1H),8.31-8.29(m,1H),7.65-7.62(m,2H),7.58(dd,J=8.8Hz,9.8Hz,1H),4.95-4.90(m,1H),3.49-3.45(m,2H),3.35-3.28(m,2H),2.56-2.54(m,1H),2.02-1.98(m,2H),1.80-1.77(m,2H),1.45(d,J=6.9Hz,6H),ESI-MS:503[M+H]+。
实施例27.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基特戊酸酯
制备方法同实施例26,使用特戊酸代替异丁酸制得上述化合物为淡黄色色固体,收率55%,1H NMR(600MHz,CD3OD)δ8.45(dd,J=2.3Hz,6.6Hz,1H),8.31-8.29(m,1H),7.65-7.62(m,2H),7.58(dd,J=8.8Hz,9.8Hz,1H),4.95-4.90(m,1H),3.49-3.45(m,2H),3.35-3.28(m,2H),2.02-1.98(m,2H),1.80-1.77(m,2H),1.45(s,9H);ESI-MS:517[M+H]+。
实施例28.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基异丙氧甲酸酯
制备路线见上所示,向化合物A(50mg,0.115mmol)的二氯甲烷(5mL)溶液中加入吡啶(24μL,0.30mmol),异丁酸酐(33μL,0.2mmol),室温搅拌1小时,1N盐酸水溶液(5mL)淬灭,二氯甲烷萃取,无水硫酸钠干燥,过滤。滤液浓缩,制备薄层析得上述目标化合物为白色固体,1H NMR(600MHz,CD3OD)δ8.45(dd,J=2.3Hz,6.6Hz,1H),8.31-8.29(m,1H),7.65-7.62(m,2H),7.58(dd,J=8.8Hz,9.8Hz,1H),5.09-5.05(m,1H),4.95-4.90(m,1H),3.49-3.45(m,2H),3.35-3.28(m,2H),2.02-1.98(m,2H),1.80-1.77(m,2H),1.27(d,J=6.9Hz,6H);ESI-MS:519[M+H]+。
实施例29.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基叔丁氧甲酸酯
制备方法同实施例28,使用Boc酸酐代替异丁酸酐制得上述化合物为淡黄色色固体,收率68%,1H NMR(600MHz,CD3OD)δ8.45(dd,J=2.3Hz,6.6Hz,1H),8.31-8.29(m,1H),7.65-7.62(m,2H),7.58(dd,J=8.8Hz,9.8Hz,1H),4.95-4.90(m,1H),3.49-3.45(m,2H),3.35-3.28(m,2H),
2.02-1.98(m,2H),1.80-1.77(m,2H),1.40(s,9H);ESI-MS:519[M+H]+。
实施例30.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基氨基甲酸酯
制备路线如上所示,步骤1:室温下向化合物A(50mg,0.12mmol)的二氯甲烷(5mL)溶液中加入三氯乙酰异氰酸酯(24μL,0.20mmol),同温搅拌1小时,浓缩。残余物经硅胶柱层析得化合物B(49.6mg,收率69%)。
步骤2:室温下,向化合物B(40mg,0.065mmol)的甲醇溶液中加入碳酸钾(18mg,0.13mmol),同温搅拌4小时,向反应液中加入二氯甲烷,过滤。滤液浓缩,硅胶柱层析得上述目标化合物C,1H NMR(600MHz,CD3OD)δ8.45(dd,J=2.3Hz,6.6Hz,1H),8.31-8.29(m,1H),7.65-7.62(m,2H),7.58(dd,J=8.8Hz,9.8Hz,1H),7.16(brs,2H),4.95-4.90(m,1H),3.49-3.45(m,2H),3.35-3.28(m,2H),2.02-1.98(m,2H),1.80-1.77(m,2H);ESI-MS:476[M+H]+。
实施例31.1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基二甲基氨基甲酸酯
制备方法如上所示,冰浴下,向化合物A(50mg,0.12mmol)的四氢呋喃溶液中加入氢化钠(24mg,0.6mmol,0.60%的氢化钠,分散于液状石蜡),室温搅拌5分钟,向反应液中加入二甲氨基甲酰氯(23μL,0.36mmol),同温搅拌3小时,冰浴下,向反应液中滴加水(10mL)淬灭,二氯甲烷萃取,无水硫酸钠干燥,过滤。滤液浓缩,硅胶柱层析得上述目标化合物(35mg,58%),1H NMR(600MHz,CD3OD)δ8.45(dd,J=2.3Hz,6.6Hz,1H),8.31-8.29(m,1H),7.65-7.62(m,2H),7.58(dd,J=8.8Hz,9.8Hz,1H),4.95-4.90(m,1H),3.49-3.45(m,2H),3.35-3.28(m,2H),3.26(s,3H),3.24(s,3H),2.02-1.98(m,2H),1.80-1.77(m,2H);ESI-MS:504[M+H]+。
实施例32.1-((3-((3,4-二氟苯基)氨基甲酰基)-4-氟苯基)磺酰基)哌啶-4-基异丁酸酯
制备路线见上所示,室温下,向化合物A(100mg,0.24mmol,化合物A的合成见专利US20160158214)的二氯甲烷(10mL)溶液中加入DCC(74mg,0.36mmol),DMAP(3mg,0.02mmol),以及异丁酸(33μL,0.36mmol),同温搅拌5小时。将反应液浓缩,硅胶柱层析(石油醚:乙酸乙酯=2:1)得上述化合物为白色固体(78mg,收率66%),1H NMR(600MHz,CD3OD)δ8.38(dd,J=2.3Hz,6.6Hz,1H),8.31-8.29(m,1H),7.77-7.70(m,1H),7.63-7.55(m,2H),7.37-7.30(m,1H),4.95-4.90(m,1H),3.49-3.45(m,2H),3.35-3.28(m,2H),2.53-2.50(m,1H),2.02-1.98(m,2H),1.80-1.77(m,2H),1.12(d,J=6.9Hz,6H);ESI-MS:485[M+H]+。
实施例33.1-((3-((3,4-二氟苯基)氨基甲酰基)-4-氟苯基)磺酰基)哌啶-4-基叔丁氧甲酸酯
制备路线见上所示,向化合物A(50mg,0.12mmol)的二氯甲烷(5mL)溶液中加入吡啶(24μL,0.30mmol),Boc-酸酐(33μL,0.2mmol),室温搅拌1小时,1N盐酸水溶液(5mL)淬灭,二氯甲烷萃取,无水硫酸钠干燥,过滤。滤液浓缩,制备薄层析得上述目标化合物为白色固体,1H NMR(600MHz,CD3OD)δ8.38(dd,J=2.3Hz,6.6Hz,1H),8.31-8.29(m,1H),7.77-7.70(m,1H),7.63-7.55(m,2H),7.37-7.30(m,1H),4.95-4.90(m,1H),3.49-3.45(m,2H),3.35-3.28(m,2H),2.02-1.98(m,2H),1.80-1.77(m,2H),1.42(s,9H);ESI-MS:515[M+H]+。
实施例34.1-((3-((3,4-二氟苯基)氨基甲酰基)-4-氟苯基)磺酰基)哌啶-4-基(叔丁氧羰基)L-缬氨酸酯
室温下,向化合物A(50mg,0.12mmol)的二氯甲烷(10mL)溶液中加入DCC(72mg,0.35mmol),DMAP(3mg,0.02mmol),以及Boc-L-缬氨酸(44mg,0.20mmol),同温搅拌5小时。将反应液浓缩,硅胶柱层析(石油醚:乙酸乙酯=2:1)得上述化合物为白色固体(64mg,收率88%),1H NMR(600MHz,CD3OD)δ8.38(dd,J=2.3Hz,6.6Hz,1H),8.31-8.29(m,1H),7.77-7.70(m,1H),7.63-7.55(m,2H),7.37-7.30(m,1H),4.94(s,1H),4.12-4.10(m,1H),3.38(brs,2H),3.25(brs,2H),1.93(brs,2H),1.76(brs,2H),1.41(s,9H),0.92(d,J=6.5Hz,3H),0.84(d,J=6.5Hz,3H);ESI-MS:636[M+Na]+.
实施例35.1-((3-((3,4-二氟苯基)氨基甲酰基)-4-氟苯基)磺酰基)哌啶-4-基L-缬氨酸酯
制备路线如上所示,向实施例34化合物A(50mg,0.082mmol)的二氯甲烷(5mL)溶液中加入三氟乙酸(1mL),室温搅拌1小时,浓缩。残余物溶于二氯甲烷溶液中,饱和碳酸氢钠溶液洗涤,无水硫酸钠干燥,浓缩。残余物经硅胶柱层析(二氯甲烷:甲醇=20:1)得上述化合物为白色固体(37mg,收率88%),1H NMR(400MHz,CD3OD)δ8.38(dd,J=2.3Hz,6.6Hz,1H),8.31-8.29(m,1H),7.77-7.70(m,1H),7.63-7.55(m,2H),7.37-7.30(m,1H),4.94-4.90(m,1H),3.49-3.38(m,2H),3.28-3.20(m,3H),2.05-1.89(m,3H),1.80-1.73(m,2H),0.90(d,J=6.9Hz,3H),0.85(d,J=6.9Hz,3H).
实施例36.1-((4-氯-3-((3,4-二氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基(叔丁氧羰基)L-缬氨酸酯
制备方法见上所示,室温下,向化合物A(50mg,0.12mmol,化合物A的合成见专利US20160158214)的二氯甲烷(10mL)溶液中加入DCC(72mg,0.35mmol),DMAP(3mg,0.02mmol),以及Boc-L-缬氨酸(44mg,0.20mmol),同温搅拌5小时。将反应液浓缩,硅胶柱层析(石油醚:乙酸乙酯=2:1)得上述化合物为白色固体(64mg,收率88%),1H NMR(600MHz,CD3OD)δ8.34(dd,J=2.3Hz,6.6Hz,1H),8.01-7.89(m,1H),7.85-7.78(m,2H),7.63-7.55(m,1H),7.37-7.30(m,1H),4.94(s,1H),4.12-4.10(m,1H),3.38(brs,2H),3.25(brs,2H),1.93(brs,2H),1.76(brs,2H),1.41(s,9H),0.92(d,J=6.5Hz,3H),0.84(d,J=6.5Hz,3H);ESI-MS:652[M+Na]+.
实施例37.1-((3-((3-氯-4-苯基)氨基甲酰基)-4-氟苯基)磺酰基)哌啶-4-基L-缬氨酸酯
制备路线如上所示,向实施例36化合物A(50mg,0.082mmol)的二氯甲烷(5mL)溶液中加入三氟乙酸(1mL),室温搅拌1小时,浓缩。残余物溶于二氯甲烷溶液中,饱和碳酸氢钠溶液洗涤,无水硫酸钠干燥,浓缩。残余物经硅胶柱层析(二氯甲烷:甲醇=20:1)得上述化合物为白色固体(37mg,收率88%),1H NMR(400MHz,CD3OD)δ8.34(dd,J=2.3Hz,6.6Hz,1H),8.01-7.89(m,1H),7.85-7.78(m,2H),7.63-7.55(m,1H),7.37-7.30(m,1H),4.94-4.90(m,1H),3.49-3.38(m,2H),3.28-3.20(m,3H),2.05-1.89(m,3H),1.80-1.73(m,2H),0.90(d,J=6.9Hz,3H),0.85(d,J=6.9Hz,3H);ESI-MS:552[M+Na]+。
生物实施例1
体外抗HBV-DNA活性试验
以HepG2 2.2.15细胞为乙型肝炎病毒载体,测定目标化合物对HBV-DNA的抑制活性及细胞毒性,并与专利化合物NVR3-778作对照,结果见表1.
表1 部分实施例化合物对HBV-DNA的体外活性和细胞毒性
化合物 | IC<sub>50</sub>(μM) | TC<sub>50</sub>(μM) | SI |
实施例3化合物 | 0.25 | >10 | >40 |
实施例6化合物 | 0.10 | 10 | 100 |
实施例11化合物 | 0.28 | >10 | >35 |
实施例17化合物 | 0.22 | >10 | >45 |
实施例18化合物 | 0.15 | 5.85 | 39 |
实施例28化合物 | 0.11 | >10 | >90 |
NVR3-778 | 0.25 | 5.85 | 23.4 |
由表1可见,本申请的式(Ⅰ)化合物中的实施例3、6、11、17、18和28化合物对HBV-DNA的体外活性(IC50:0.10-0.28μM)优于或相当于对照药NVR3-778(IC50:0.25μM),细胞毒性(TC50:5.85->10μM)低于或相当于NVR3-778(TC50:5.85μM),选择性指数(SI:>35-100)则明显大于对照药NVR3-778(SI:23.4)。
上述表中仅列举本发明部分化合物的体外活性,本发明其他化合物与上述化合物结构相似,也具有和上述化合物相同或者相近的体外活性效果,在此不一一列举。
生物实施例2
口服急性毒性试验
为测定本发明化合物的口服急性毒性,对实施例7化合物和实施例26化合物进行了急性毒性实验,将含不同浓度的这两个化合物的溶液口服给于雄性小鼠,剂量为0.1ml/10g体重,7日后分别记数死鼠量,用Bliss程序计算各化合物的半数致死量(LD50)。结果列于表2中。
表2 实施例7和26化合物的小鼠口服急性毒性
实验化合物 | LD<sub>50</sub>(mg/kg) |
实施例7化合物 | >2000 |
实施例26化合物 | >2000 |
实验结果表明,这些化合物毒性很低,非常适合药用。
组合物实施例
实施例1 包衣片
片芯处方:
取上述成分混合均匀,制粒后过筛整粒,干燥、压片制成100片片芯。
包衣液处方:欧巴代(Opadry)5g,80%乙醇适量包衣。
实施例2胶囊
处方:
制备方法:
取处方量原辅料,分别过筛,加入5%聚乙烯吡咯烷酮醇液和吐温80制软材,用20目筛制粒,在室温15℃下晾干,加入十二烷基硫酸钠,混合均匀,按0.27g/S装入0号胃溶胶囊,取样化验,溶出限度为Q=80%,含量应为标示量的90~110%。
实施例3 颗粒剂
取实施例11的化合物100g,加入适量糊精、甜菊素,干式制粒,整粒,分装,即得。
实施例4 注射剂
取实施例17的化合物150g加水溶解,另氯化钠、对羟基苯甲酸乙酯加热水溶解,混匀,调pH值5-7。注射用水稀释至1000ml,用中空纤维膜滤过,灌装,灭菌,即得。
实施例5 冻干粉针
取实施例18的化合物150g加水溶解,另加甘露醇500g加热水溶解,混匀,注射用水稀释至5000ml,用中空纤维膜滤过,灌装,灭菌,冻干即得冻干粉针。
实施例6 滴丸
取实施例28的化合物20g作为原料药备用;称取滴丸基质200g,加热至80℃融化,搅拌均匀;边搅拌边将原料加入辅料基质中,搅拌30min使之均匀,保持药液温度不低于60℃;将配制好的药液注入滴丸机中,滴成滴丸,即可。
虽然,上文中已经用一般性说明及具体实施方案对本发明作了详尽的描述,但在本发明基础上,可以对之作一些修改或改进,这对本领域技术人员而言是显而易见的。因此,在不偏离本发明精神的基础上所做的这些修改或改进,均属于本发明要求保护的范围。
Claims (2)
1.含有4-羰氧基哌啶基的氨磺酰基苯甲酰胺类化合物,选自:
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基(叔丁氧羰基)L-缬氨酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基L-缬氨酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(L-缬氨酰氧基)乙酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基2-(2-吗啉基乙酰氧基)乙酸酯;
1-((2-氟-5-((3,4,5-三氟苯基)氨基甲酰基)苯基)磺酰基)哌啶-4-基异丙氧甲酸酯。
2.权利要求1所述的化合物或其药用盐在制备治疗乙肝的药物中的应用。
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