CN107445896A - 一种具有抗肿瘤活性的苯基异羟肟酸类化合物及其应用 - Google Patents
一种具有抗肿瘤活性的苯基异羟肟酸类化合物及其应用 Download PDFInfo
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
- C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
- C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D231/12—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/04—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
本发明属于医药技术领域,涉及一种具有抗肿瘤活性的苯基异羟肟酸类化合物,具体涉及含有3(5)‑取代苯基‑5(3)‑取代吡唑片段的苯基异羟肟酸类化合物,及其药学上可接受的盐、水合物,和以该化合物为活性成分的药物组合物,以及在制备组蛋白去乙酰化酶抑制剂及其用于治疗和/或预防癌症中的用途。所述的化合物结构如下:其中,R1独立选自一个或多个如下取代基:卤素、(C1‑C4)烷基、二氧亚甲基;R2独立选自(C1‑C4)烷基、卤代(C1‑C4)烷基、取代或未取代的苯基,所述取代基为(C1‑C4)烷基;n为0‑2之间的整数。
Description
技术领域:
本发明属于医药技术领域,涉及一种具有抗肿瘤活性的苯基异羟肟酸类化合物,具体涉及含有3(5)-取代苯基-5(3)-取代吡唑片段的苯基异羟肟酸类化合物,及其药学上可接受的盐、水合物,和以该化合物为活性成分的药物组合物,以及在制备组蛋白去乙酰化酶抑制剂及其用于治疗和/或预防癌症中的用途。
背景技术:
表观遗传研究正成为人类攻克肿瘤的希望。表观遗传改变多发生在肿瘤发生的早期,此时肿瘤细胞尚未对人体造成实质性损害,此时进行干预,很有可能将其扼杀在摇篮里。另外,相比遗传修饰几乎是不可能逆转而言,表观遗传修饰异常可以逆转,使肿瘤细胞恢复为正常状态。因而,表观遗传研究具有更为广阔的应用前景。
组蛋白乙酰化修饰是表观遗传修饰的一种重要方式,人类绝大多数肿瘤细胞都存在组蛋白修饰异常,这种异常能引起抑癌基因沉默致使肿瘤形成。组蛋白去乙酰化酶(HiStone deacetylaSe,HDAC)是一个包含多个成员的酶家族,目前已知有18种亚型,按其种系及与酵母同源性不同分为以下四类:与酵母Rpd3,HoS1,HoS2同源的I类,包括HDAC1、2、3、8;与酵母Hda1,HoS3同源的IIa类包括HDAC4、5、7、9,IIb类包括HDAC6、10;与酵母Sir2同源的III类,包括SIRT1~SIRT7;与I和II类HDAC都有部分同源性,但其种系不同的IV类,有HDAC11。其中I、II、IV类为经典的Zn2+依赖的HDACs,而第III类属于Sirtuin家族,为NAD+依赖的HDACS。研究表明,第I和II类HDACs能够抑制肿瘤细胞分化和凋亡、促进肿瘤细胞增殖等,其与肿瘤的发生、发展密切相关,以HDACs为靶点的抑制剂研究已成为抗肿瘤药物研究的热点之一。目前,国内外已有多种HDACs上市,如伏立诺他、西达苯胺等,主要用于治疗非实体瘤。
本发明在参考文献的基础上,设计并合成了一系列含有3(5)-取代苯基-5(3)-取代吡唑片段的苯基异羟肟酸类化合物,体外抗肿瘤活性测试结果表明,其具有良好的抗肿瘤活性,尤其是抗肝癌活性,并表现出优异的HDAC抑制作用。
发明内容:
本发明的目的在于提供一种具有抗肿瘤活性的的硫基类化合物,具体为含有3(5)-取代苯基-5(3)-取代吡唑片段的苯基异羟肟酸类化合物及其制备方法,以及该类化合物作为组蛋白去乙酰化酶抑制剂在预防和/或治疗肿瘤中的应用。
本发明提供了如通式I所示的化合物及其盐和水合物:
其中,
R1独立选自一个或多个如下取代基:卤素、(C1-C4)烷基、二氧亚甲基;
R2独立选自(C1-C4)烷基、卤代(C1-C4)烷基、取代或未取代的苯基,所述取代基为(C1-C4)烷基;
n为0-2之间的整数;
本发明优选如下结构的化合物及其盐和水合物:
R1独立选自一个或多个如下取代基:F,甲基,二氧亚甲基;
R2独立选自(C1-C4)烷基、卤代(C1-C4)烷基、取代或未取代的苯基,所述取代基为(C1-C4)烷基;
n为0-2之间的整数;
本发明优选如下结构的化合物及其盐和水合物:
R1独立选自一个或多个如下取代基:卤素、(C1-C4)烷基、二氧亚甲基;
R2独立选自(C1-C4)烷基、三氟甲基、苄基;
n为0-2之间的整数;
本发明优选如下结构的化合物及其盐和水合物:
R1独立选自一个或多个如下取代基:F,甲基,二氧亚甲基;
R2独立选自(C1-C4)烷基、三氟甲基、苄基;
n为0-2之间的整数;
本发明优选如下结构的化合物及其盐和水合物:
R1独立选自一个或多个如下取代基:F,甲基,二氧亚甲基;
R2独立选自甲基、乙基、正丙基、三氟甲基、苄基;
n为1-2之间的整数;
除非另外指出,本发明所用的术语“卤素”是指氟、氯、溴或碘,优选氯、溴;“烷基”是指直链或支链的烷基。
此外,本发明还包括本发明化合物的前药。依据本发明,前药是通式I的化合物,它们自身可能具有较弱的活性或甚至没有活性,但是在给药后,在生理条件下(例如通过代谢、溶剂分解或另外的方式)被转化成相应的生物活性形式。
本发明包括药物组合物,该组合物含有上式I的含有3(5)-取代苯基-5(3)-取代吡唑片段的苯基异羟肟酸类化合物和药物上可接受的赋型剂。所述药物上可接受的赋型剂是指任何可用于药物领域的稀释剂、辅助剂和/或载体。本发明的化合物可以与其他活性成分组合使用,只要它们不产生其他不利的作用,例如过敏反应。
本发明的药物组合物可配制成若干种剂型,其中含有药物领域中常用的一些赋型剂,例如,口服制剂(如片剂,胶囊剂,溶液或混悬液);可注射的制剂(如可注射的溶液或混悬液,或者是可注射的干燥粉末,在注射前加入注射用水可立即使用);局部制剂(例如软膏或溶液)。
用于本发明药物组合物的载体是药物领域中可得到的常见类型,包括:口服制剂用的粘合剂、润滑剂、崩解剂、助溶剂、稀释剂、稳定剂、悬浮剂、色素、矫味剂等;可注射制剂用的防腐剂、加溶剂、稳定剂等;局部制剂用的基质、稀释剂、润滑剂、防腐剂等。药物制剂可以经口服或胃肠外方式(例如静脉内、皮下、腹膜内或局部)给药,如果某些药物在胃部条件下是不稳定的,可将其配制成肠衣片剂。
通过体外抑酶试验筛选,我们发现本发明化合物可抑制组蛋白去乙酰化酶活力,因此,本发明化合物可用于与组蛋白去乙酰化酶活性异常表达相关的疾病中的应用,如各种癌症。
通过体外活性筛选及体内药效学研究,我们发现本发明化合物具有抗肿瘤活性,因此本发明化合物可以用于制备治疗和/或预防各种癌症的药物,如乳腺、肺、结肠、直肠、肝、子宫、胰腺和卵巢癌。
本发明活性化合物可作为唯一的抗癌药物使用,或者与一种或多种其它抗肿瘤药物联合使用。联合治疗通过将各个治疗组分同时、顺序或隔开给药来实现。
下文中提供的实施例和制备例进一步阐明和举例说明本发明化合物及其制备方法。应当理解,下述实施例和制备例的范围并不以任何方式限制本发明的范围。
下面的合成路线描述了本发明的式I化合物的制备,所有的原料都是通过这些路线中描述的方法、通过有机化学领域普通技术人员熟知的方法制备的或者可商购。本发明的全部最终化合物都是通过这些路线中描述的方法或通过与其类似的方法制备的,这些方法是有机化学领域普通技术人员熟知的。这些路线中应用的全部可变因数如下文的定义或如权利要求中的定义。
按照本发明的式I化合物,
当n=0时,按照路线一的方法制得目标化合物。其他各取代基如发明内容部分所定义。
Scheme 1.(a)Ethyl trifluoroacetate,NaOMe,THF,ref.,5h;(b)Methyl 4-hydrazinylbenzoate,EtOH,ref.,4h;(c)50%NH2OH,NaOH,MeOH,r.t.,3h.
当n=1,2时,按照路线二的方法制得目标化合物。其他各取代基如发明内容所定义。
Scheme 2.(a)Appropriate carboxylic ethyl ether,NaH,dry THF,N2,r.t.,overnight;(b)hydrazine hydrate,acetic acid,ref.,2h;(c)methyl 4-(bromomethyl)benzoate or methyl 4-(2-bromoe-thyl)benzoate,K2CO3,MeCN,ref.,4h;(d)50%NH2OH,NaOH,MeOH,r.t.,3h.
本发明制备方法操作简单、条件温和,所得化合物均具有组蛋白去乙酰化酶抑制活性,抗肿瘤作用显著。
具体实施方式
下面通过具体的实施例对本发明进行详细说明,但这些例举性实施方式的用途和目的仅用来例举本发明,并非对本发明的实际保护范围构成任何形式的任何限定,更非将本发明的保护范围局限于此。
实施例1:4-(5-(4-甲基苯基)-3-(三氟甲基)-1H-1-吡唑基)-苯基异羟肟酸的制备
步骤A:4,4,4-三氟-1-(4-甲基苯基)-1,3丁二酮的制备
将对甲基苯乙酮(0.67g,5mmol)溶于20mL干燥THF中,0℃下加入NaH(0.24g,10mmol),搅拌10min。N2保护下滴加三氟乙酸乙酯(0.9mL,7.5mmol)至反应液中,滴毕转移至室温继续反应12h。反应完成后用饱和碳酸氢钠水溶液(50mL)淬灭,并用乙酸乙酯萃取(50mL×3)。合并有机相,干燥,浓缩。粗产品经柱层析纯化得1g黄色固体,收率87.3%。LC-MS m/z:231.1[M+H]+。
步骤B:4-(5-(4-甲基苯基)-3-(三氟甲基)-1H-1-吡唑基)-苯甲酸甲酯的制备
将4,4,4-三氟-1-(4-甲基苯基)-1,3丁二酮(0.46g,2mmol)溶于乙醇(50mL),加入4-肼基苯甲酸甲酯盐酸盐(0.53g,2.6mmol)并加热至回流。反应5h后,浓缩反应液,向反应体系中加入水(50mL)并用乙酸乙酯(30mL×3)萃取。收集有机相,干燥,浓缩。粗产品经柱层析纯化得0.55g白色固体,收率为76.1%。LC-MS m/z:361.0[M+H]+。
步骤C:4-(5-(4-甲基苯基)-3-(三氟甲基)-1H-1-吡唑基)-苯基异羟肟酸的制备
将4-(5-(4-甲基苯基)-3-(三氟甲基)-1H-1-吡唑基)-苯甲酸甲酯(0.36g,1mmol)溶于甲醇(30mL),0℃下滴加1mol/L NaOH水溶液(3mL),搅拌5min后滴加NH2OH((50wt%inwater,3mL)。滴毕,转移至室温继续反应3h。反应完毕后,浓缩反应液,向反应体系中加水(30mL),用2mol/L盐酸调pH至中性。抽滤,得0.31g白色固体,收率为84.6%。LC-MS m/z:360.3[M-H]-,1H-NMR(600MHz,DMSO-d6)δ:11.33(s,1H),9.13(s,1H),7.80(d,J=8.6Hz,2H),7.42(d,J=8.6Hz,2H),7.21–7.18(m,4H),7.17(s,1H),2.30(s,3H)。
实施例2:4-((5-(4-甲基苯基)-3-(三氟甲基)-1H-1-吡唑基)甲基)-苯基异羟肟酸的制备
步骤A:4,4,4-三氟-1-(4-甲基苯基)-1,3丁二酮的制备
步骤B:3-三氟甲基-5-(4-甲基苯基)-1H-吡唑的制备
将4,4,4-三氟-1-(4-甲基苯基)-1,3丁二酮(2.3g,10mmol)溶于冰乙酸(50mL),加入水合肼(0.76g,11mmol)并加热至80℃。4h后结束反应,反应液倒入冷水中(100mL),乙酸乙酯萃取(50mL×3)。合并有机相,干燥,浓缩。粗产品经柱层析纯化得1.81g浅黄色固体,收率80.3%。
步骤C:4-((5-(4-甲基苯基)-3-(三氟甲基)-1H-1-吡唑基)甲基)-苯甲酸甲酯的制备
将3-三氟甲基-5-(4-甲基苯基)-1H-吡唑(1.13g,5mmol)溶于乙腈(100mL),加入4-溴甲基苯甲酸甲酯(1.37g,6mmol)和Cs2CO3(3.26g,10mmol)。回流反应5h。反应完毕后,浓缩反应液,向反应体系中加水(100mL),乙酸乙酯(80mL×3)萃取,干燥,浓缩。粗产品经柱层析纯化后得0.89g白色固体,收率47.6%。
步骤D:4-((5-(4-甲基苯基)-3-(三氟甲基)-1H-1-吡唑基)甲基)-苯基异羟肟酸的制备
按照实施例1中步骤C的合成方法,以4-((5-(4-甲基苯基)-3-(三氟甲基)-1H-1-吡唑基)甲基)-苯甲酸甲酯为原料合成标题化合物,收率79.3%。ESI-MS:m/z,374.2[M-H]-。1H-NMR(600MHz,DMSO-d6)δ:11.17(s,1H),9.02(s,1H),7.67(d,J=8.3Hz,2H),7.36(d,J=8.1Hz,2H),7.30(d,J=7.9Hz,2H),7.05(d,J=8.3Hz,2H),6.94(s,1H),5.50(s,2H),2.34(s,3H)。
按照实施例2的制备方法,选择适当的原料,制得实施例3-实施例17的化合物。
实施例3:4-((3-(4-甲基苯基)-5-(三氟甲基)-1H-1-吡唑基)甲基)-苯基异羟肟酸的制备
ESI-MS:m/z,374.1[M-H]-.1H-NMR(600MHz,DMSO-d6)δ:10.99(s,1H),9.05(s,1H),7.77(m,1H),7.76(m,1H),7.73(m,1H),7.71(m,1H),7.26–7.24(m,4H),7.24(s,1H),5.57(s,2H),2.33(s,3H).
实施例4:4-((5-(4-甲基苯基)-3-(三氟甲基)-1H-1-吡唑基)乙基)-苯基异羟肟酸的制备
ESI-MS:m/z,388.3[M-H]-.1H-NMR(600MHz,DMSO-d6)δ:11.14(s,1H),8.98(s,1H),7.59(d,J=8.2Hz,2H),7.26(s,1H),7.25(s,1H),7.15(d,J=8.0Hz,2H),7.04(d,J=8.2Hz,2H),6.75(s,1H),4.37(t,J=7.2Hz,2H),3.10(t,J=7.2Hz,2H),2.35(s,3H).
实施例5:4-((3-(4-甲基苯基)-5-(三氟甲基)-1H-1-吡唑基)乙基)-苯基异羟肟酸的制备
ESI-MS:m/z,388.2[M-H]-.1H-NMR(600MHz,DMSO)δ:11.15(s,1H),8.99(s,1H),7.75(d,J=8.0Hz,2H),7.65(d,J=8.2Hz,2H),7.31(s,1H),7.26(s,1H),7.24(d,J=3.0Hz,2H),7.23(s,1H),4.47(t,J=7.2Hz,2H),3.24(t,J=7.1Hz,2H),2.33(s,3H).
实施例6:4-((3-甲基-5-(4-甲基苯基)-1H-1-吡唑基)甲基)-苯基异羟肟酸的制备
ESI-MS:m/z,320.1[M-H]-.1H-NMR(600MHz,DMSO-d6)δ:11.15(s,1H),9.00(s,1H),7.65(d,J=8.3Hz,2H),7.25(q,J=8.2Hz,4H),7.03(d,J=8.3Hz,2H),6.21(s,1H),5.30(s,2H),2.32(s,3H),2.20(s,3H)..
实施例7:4-((5-甲基-3-(4-甲基苯基)-1H-1-吡唑基)甲基)-苯基异羟肟酸的制备
ESI-MS:m/z,320.3[M-H]-.1H-NMR(600MHz,DMSO-d6)δ:11.17(s,1H),9.01(s,1H),7.71(d,J=8.3Hz,2H),7.64(d,J=8.1Hz,2H),7.19(t,J=7.9Hz,4H),6.51(s,1H),5.37(s,2H),2.30(s,3H),2.24(s,3H).
实施例8:4-((5-(5-苯并[d][1,3]二氧亚甲基)-3-甲基-1H-1-吡唑基)乙基)-苯基异羟肟酸的制备
ESI-MS:m/z,350.1[M-H]-.1H-NMR(600MHz,DMSO-d6)δ:11.12(s,1H),9.01(s,1H),7.83(d,J=8.1Hz,1H),7.65(d,J=8.3Hz,2H),7.03(d,J=8.2Hz,2H),6.96(d,J=8.0Hz,1H),6.92(d,J=1.6Hz,1H),6.83(d,J=1.7Hz,1H),6.82(d,J=1.7Hz,1H),6.19(s,1H),6.05(s,2H),5.29(s,2H),2.18(s,3H).
实施例9:4-((3-(5-苯并[d][1,3]二氧亚甲基)-5-甲基-1H-1-吡唑基)乙基)-苯基异羟肟酸的制备
ESI-MS:m/z,350.3[M-H]-.1H-NMR(600MHz,DMSO-d6)δ:11.15(s,1H),9.03(s,1H),7.71(d,J=8.3Hz,2H),7.27(dd,J=16.2,5.6Hz,2H),7.19(d,J=8.2Hz,2H),6.91(d,J=8.0Hz,1H),6.48(s,1H),6.02(s,2H),5.36(s,2H),2.22(s,3H).
实施例10:4-((5-(4-氟苯基)-3-甲基-1H-1-吡唑基)乙基)-苯基异羟肟酸的制备
ESI-MS:m/z,324.1[M-H]-.1H-NMR(400MHz,DMSO-d6)δ:11.16(s,1H),9.04(s,1H),7.65(d,J=8.1Hz,2H),7.41(dd,J=8.5,5.5Hz,2H),7.27(t,J=8.8Hz,2H),7.02(d,J=8.1Hz,2H),6.25(s,1H),5.30(s,2H),2.20(s,3H).
实施例11:4-((3-(4-氟苯基)-5-甲基-1H-1-吡唑基)乙基)-苯基异羟肟酸的制备
ESI-MS:m/z,324.2[M-H]-.1H-NMR(400MHz,DMSO-d6)δ:11.19(s,1H),9.03(s,1H),7.79(dd,J=8.7,5.6Hz,2H),7.71(d,J=8.2Hz,2H),7.21(t,J=8.3Hz,4H),6.55(s,1H),5.39(s,2H),2.24(s,3H).
实施例12:4-((5-(4-氟苯基)-3-乙基-1H-1-吡唑基)乙基)-苯基异羟肟酸的制备
ESI-MS:m/z,338.1[M-H]-.1H NMR(600MHz,DMSO)δ:11.12(s,1H),9.02(s,1H),7.65(d,J=8.3Hz,2H),7.44–7.40(m,2H),7.29–7.25(m,2H),7.01(d,J=8.3Hz,2H),6.29(s,1H),5.32(s,2H),2.58(q,J=7.6Hz,2H),1.20(t,J=7.6Hz,3H).
实施例13:4-((3-(4-氟苯基)-5-乙基-1H-1-吡唑基)乙基)-苯基异羟肟酸的制备
ESI-MS:m/z,338.2[M-H]-.1H-NMR(600MHz,DMSO-d6)δ:11.17(s,1H),9.01(s,1H),7.81(dd,J=8.5,5.7Hz,2H),7.70(d,J=8.2Hz,2H),7.23–7.17(m,4H),6.59(s,1H),5.39(s,2H),2.58(q,J=7.5Hz,2H),1.17(t,J=7.5Hz,3H).
实施例14:4-((5-(4-氟苯基)-3-正丙基-1H-1-吡唑基)乙基)-苯基异羟肟酸的制备
ESI-MS:m/z,352.1[M-H]-.1H NMR(600MHz,DMSO)δ:11.14(s,1H),8.99(s,1H),7.64(d,J=8.2Hz,2H),7.43–7.40(m,2H),7.28–7.24(m,2H),7.00(d,J=8.2Hz,2H),6.28(s,1H),5.32(s,2H),2.53(t,J=7.5Hz,2H),1.67–1.60(m,2H),0.94(t,J=7.4Hz,3H).
实施例15:4-((3-(4-氟苯基)-5-正丙基-1H-1-吡唑基)乙基)-苯基异羟肟酸的制备
ESI-MS:m/z,352.2[M-H]-.1H-NMR(400MHz,DMSO-d6)δ:11.17(s,1H),9.02(s,1H),7.81(dd,J=8.8,5.6Hz,2H),7.70(d,J=8.2Hz,2H),7.24–7.16(m,4H),6.59(s,1H),5.40(s,2H),2.55(t,J=7.6Hz,2H),1.63–1.51(m,2H),0.90(t,J=7.3Hz,3H).
实施例16:4-((5-(4-氟苯基)-3-苄基-1H-1-吡唑基)乙基)-苯基异羟肟酸的制备
ESI-MS:m/z,400.1[M-H]-.1H NMR(600MHz,DMSO)δ11.15(s,1H),9.02(s,1H),7.84(d,J=8.2Hz,1H),7.65(d,J=8.3Hz,2H),7.42–7.39(m,2H),7.30(d,J=1.4Hz,2H),7.29(s,2H),7.27–7.24(m,2H),7.02(d,J=8.2Hz,2H),6.25(s,1H),5.35(s,2H),3.92(s,2H).
实施例17:4-((3-(4-氟苯基)-5-苄基-1H-1-吡唑基)乙基)-苯基异羟肟酸的制备
ESI-MS:m/z,400.3[M-H]-.1H-NMR(600MHz,DMSO-d6)δ:11.17(s,1H),9.01(s,1H),7.87(d,J=8.4Hz,1H),7.78(dd,J=6.1,2.8Hz,2H),7.66(d,J=8.3Hz,2H),7.29–7.26(m,2H),7.21–7.19(m,2H),7.19(t,J=1.8Hz,2H),7.13(d,J=8.3Hz,2H),6.50(s,1H),5.37(s,2H),4.02(s,2H).
实施例18.本发明产物药理作用研究
实验设空白对照组(不加药)和阳性对照组(伏立诺他)。室温下将待测化合物和Hela核提取物(50ng)预培养15min,加入荧光底物Boc–Lys(Ac)–AMC或Boc–Lys(TFA)–AMC。37℃下培养60min后,加入25μL终止剂(含Trypsin和SAHA)终止反应。15min后,应用全波长多功能酶标仪在激发和发射波长分别为355nm和460nm时检测荧光强度,计算抑制率。目标化合物对HDACs酶抑制活性见Tab.1。
Tab.1化合物及阳性药伏立诺他的HDAC抑制活性
抗细胞增殖的体外抑制活性试验
1.细胞复苏
从液氮中小心取出细胞(冻存管)在37~40℃水浴中迅速全部融化,使细胞迅速越过极易受损的0~5℃温度范围。在无菌条件下用移液枪吸出细胞放入离心管中,在1300r/min下离心3min,轻轻弃去上清液后加入培养液,吹打混匀细胞,移入培养瓶中放入二氧化碳培养箱中培养,4h后换液一次。
2.细胞传代
细胞复苏后需培养传代2-3次待其稳定后方可进行实验,每次传代以细胞贴满培养瓶底部90%为准。
3.细胞埋板
细胞生长贴满培养瓶底部时用胰蛋白酶溶液(0.25%)使其从培养瓶底部消化下来。轻轻弃去上胰蛋白酶溶液后加入10mL培养液,吹打混匀细胞,吸取10uL细胞混悬液加入细胞计数板中计数,调整细胞浓度为3.5×104个/孔。96孔板中除A1孔为空白孔不加细胞外,其余皆加入100uL细胞混悬液。将96孔板放入培养箱中培养24h。
4.细胞加药
先用50μL DMSO溶解药物。而后加入适量培养液,使药物溶解成2mmol/mL药液。然后在96孔板中将药物溶解成100,50,25,12.5,6.25μmol/mL。每个浓度加入3孔,其中周围两行两列细胞长势受环境影响较大,只作为空白细胞孔使用。将96孔板放入培养箱中培养24h。
MTT试验测定方法
将细胞按1.5~3×104细胞密度埋96孔板,每孔100uL,细胞贴壁24h加入不同浓度的药物(100uL/孔),药物与细胞孵育96h后加入MTT,放入培养箱中4h后,弃去MTT(四氮唑)溶液,加入DMSO 200uL。在磁力振荡器上振荡使存活细胞与MTT反应产物甲臜充分溶解,放入酶标仪中在570nm波长处读出OD值。按下式计算抑制率:
以SAHA为阳性对照药,目标化合物的抗细胞增殖的体外抑制活性试验。试验结果见Tab.2。
Tab.2化合物及阳性药伏立诺他对三种细胞株的生长抑制活性。
上述试验结果表明,本发明要保护的通式的化合物具有良好的抗肿瘤活性和HDAC抑制作用。本发明的化合物具有很好的工业应用前景。
Claims (10)
1.如通式I所示的化合物及其盐和水合物:
其中,
R1独立选自一个或多个如下取代基:卤素、(C1-C4)烷基、二氧亚甲基;
R2独立选自(C1-C4)烷基、卤代(C1-C4)烷基、取代或未取代的苯基,所述取代基为(C1-C4)烷基;
n为0-2之间的整数。
2.根据权利要求1所述的通式I的化合物及其盐和水合物,其中:
R1独立选自一个或多个如下取代基:F,甲基,二氧亚甲基。
3.根据权利要求1或2所述的通式I的化合物及其盐和水合物,其中:
R2独立选自(C1-C4)烷基、三氟甲基、苄基。
4.根据权利要求1-3任何一项所述的通式I的化合物及其盐和水合物,其中:
R2独立选自甲基、乙基、正丙基、三氟甲基、苄基。
5.根据权利要求1-4任何一项所述的通式I的化合物及其盐和水合物,其中:
n为1-2之间的整数。
6.如下的化合物及其盐和水合物:
4-(5-(4-甲基苯基)-3-(三氟甲基)-1H-1-吡唑基)-苯基异羟肟酸;
4-((5-(4-甲基苯基)-3-(三氟甲基)-1H-1-吡唑基)甲基)-苯基异羟肟酸
4-((3-(4-甲基苯基)-5-(三氟甲基)-1H-1-吡唑基)甲基)-苯基异羟肟酸
4-((5-(4-甲基苯基)-3-(三氟甲基)-1H-1-吡唑基)乙基)-苯基异羟肟酸
4-((3-(4-甲基苯基)-5-(三氟甲基)-1H-1-吡唑基)乙基)-苯基异羟肟酸
4-((3-甲基-5-(4-甲基苯基)-1H-1-吡唑基)甲基)-苯基异羟肟酸
4-((5-甲基-3-(4-甲基苯基)-1H-1-吡唑基)甲基)-苯基异羟肟酸
4-((5-(5-苯并[d][1,3]二氧亚甲基)-3-甲基-1H-1-吡唑基)乙基)-苯基异羟肟酸
4-((3-(5-苯并[d][1,3]二氧亚甲基)-5-甲基-1H-1-吡唑基)乙基)-苯基异羟肟酸
4-((5-(4-氟苯基)-3-甲基-1H-1-吡唑基)乙基)-苯基异羟肟酸
4-((3-(4-氟苯基)-5-甲基-1H-1-吡唑基)乙基)-苯基异羟肟酸
4-((5-(4-氟苯基)-3-乙基-1H-1-吡唑基)乙基)-苯基异羟肟酸
4-((3-(4-氟苯基)-5-乙基-1H-1-吡唑基)乙基)-苯基异羟肟酸
4-((5-(4-氟苯基)-3-正丙基-1H-1-吡唑基)乙基)-苯基异羟肟酸
4-((3-(4-氟苯基)-5-正丙基-1H-1-吡唑基)乙基)-苯基异羟肟酸
4-((5-(4-氟苯基)-3-苄基-1H-1-吡唑基)乙基)-苯基异羟肟酸
4-((3-(4-氟苯基)-5-苄基-1H-1-吡唑基)乙基)-苯基异羟肟酸。
7.一种药物组合物,其特征在于:包含权利要求1-6中任何一项的化合物及其药学上可接受的赋型剂。
8.权利要求1-6中任何一项的化合物及其盐和水合物或权利要求7所述药物组合物在制备与组蛋白去乙酰化酶活性异常表达相关的疾病药物中的应用。
9.权利要求1-6中任何一项的化合物及其盐和水合物或权利要求7所述药物组合物在制备抗肿瘤药物中的应用。
10.权利要求1-6中任何一项的化合物及其盐和水合物或权利要求7所述药物组合物在制备治疗和/或预防前列腺癌、乳腺癌、宫颈癌或白血病药物中的应用。
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