CN104945406B - 氮杂非那烯‑3‑酮的衍生物、其制备方法及其作为parp抑制剂的应用 - Google Patents
氮杂非那烯‑3‑酮的衍生物、其制备方法及其作为parp抑制剂的应用 Download PDFInfo
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- CN104945406B CN104945406B CN201510267732.1A CN201510267732A CN104945406B CN 104945406 B CN104945406 B CN 104945406B CN 201510267732 A CN201510267732 A CN 201510267732A CN 104945406 B CN104945406 B CN 104945406B
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- alkene
- ketone
- azepine
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- 150000001336 alkenes Chemical class 0.000 title claims abstract description 24
- XYOVOXDWRFGKEX-UHFFFAOYSA-N azepine Chemical compound N1C=CC=CC=C1 XYOVOXDWRFGKEX-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000012661 PARP inhibitor Substances 0.000 title claims abstract description 13
- 229940121906 Poly ADP ribose polymerase inhibitor Drugs 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
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- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 6
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- MLQMIKSBTAZNBK-UHFFFAOYSA-N dimethyl 3-nitrobenzene-1,2-dicarboxylate Chemical class COC(=O)C1=CC=CC([N+]([O-])=O)=C1C(=O)OC MLQMIKSBTAZNBK-UHFFFAOYSA-N 0.000 claims 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/12—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains three hetero rings
- C07D487/16—Peri-condensed systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
本发明公开了一种氮杂非那烯‑3‑酮的衍生物、其制备方法及其作为PARP抑制剂的应用,氮杂非那烯‑3‑酮衍生物的结构式为:
Description
技术领域
本发明属于涉及药物合成技术领域,具体涉及一种氮杂非那烯-3-酮化合物衍生物及其作为PARP抑制剂的应用。
背景技术
聚腺苷酸二磷酸核糖聚合酶(poly(ADP-ribose)-polymerase,PARP)存在于哺乳动物细胞和大多数真核细胞中,是一类催化聚ADP核糖化的细胞核酶。PARP与许多生理过程密切相关,包括染色体的稳定、DNA损伤的识别和修复、基因的转录以及细胞的凋亡和坏死等。PARP自发现以来,其在DNA损伤修复和维持基因组的稳定性方面的重要作用已经引起广泛关注。在各类DNA损伤中,DNA单链损伤发生最为频繁,而其一系列的修复途径所采用的酶就是PARP。PARP作为DNA缺口的感受器,在DNA损伤后被激活,依赖N-端DBD的两个锌指结构识别并结合到DNA缺口,使其催化活性提高10-500倍。
现有的化疗药物和放疗均是通过直接或间接攻击DNA,造成DNA损伤从而对肿瘤细胞产生细胞杀伤作用。然而,在肿瘤细胞中DNA修复酶过度表达的话,会激活自身的DNA损伤修复机制,进而在药物治疗和放疗过程中产生抗性。研究发现,PARP抑制剂可以阻断DNA修复通路,降低肿瘤细胞的自我修复能力,因此将PARP抑制剂与放化疗联合应用可以有效增强抗肿瘤效果。研究还发现,PARP抑制剂单药对BRCA1/2基因缺失或突变的乳腺癌及卵巢癌也有明显的抑制作用。
综上所述,PARP抑制剂在在抗肿瘤方面方面具有广阔的研究和应用前景。因此本发明拟在前期研究的基础上,设计、合成一系列全新的基于呔嗪酮母核的氮杂非那烯-3-酮化合物衍生物,并对其活性进行筛选和初步研究,为研发出活性更好的抗肿瘤药物提供基础。
发明内容
本发明的目的是为了解决现有技术的不足,而提出一种氮杂非那烯-3-酮的衍生物、其制备方法及其作为PARP抑制剂的应用,本发明的氮杂非那烯-3-酮衍生物具有很高的抑制PARP酶的活性,给发展氮杂非那烯-3-酮化合物作为用于PARP抑制剂从而达到肿瘤治疗目的的新药研究提供了良好的基础。
如式(Ⅰ)所示的氮杂非那烯-3-酮衍生物:
其中R为氢,甲基,乙基,异丙基,苄基或者3-甲基-3-丁烯基。
上述氮杂非那烯-3-酮化合物的合成路线为:
(1)以3-硝基邻苯二甲酸(化合物1)为原料,在乙酸酐(Ac2O)的作用下与甲基叔丁基醚反应生成3-硝基邻苯二甲酸酐(化合物2);
(2)化合物2在硫酸(H2SO4)存在下与甲醇(MeOH)反应生成3-硝基邻苯二甲酸二甲酯(化合物3)。
(3)化合物3通过催化氢化还原得到3-氨基邻苯二甲酸二甲酯(化合物4);
(4)化合物4在三氯氧磷存在下与N-苄氧羰基-4-哌啶酮缩合生成化合物5;
(5)化合物5在Boc2O存在下催化氢化得到化合物6;然后化合物6与水合肼缩合生成化合物7。化合物7脱除保护剂得到化合物8(R=H);
(6)化合物5催化氢化脱除苄氧羰基保护基(Cbz)得到化合物9,然后该化合物9的氨基进行烷基化得到化合物10,化合物10在乙醇(EtOH)中和水合肼(Hydrazine hydrate)发生缩合得到一系列氮杂非那烯-3-酮衍生物(12-16,R依次为乙基、甲基、异丙基,苄基或者3-甲基-3-丁烯基)。上述氮杂非那烯-3-酮的衍生物作为PARP抑制剂抑制剂的应用。
通过对本发明所制备的氮杂非那烯-3-酮衍生物的活性进行筛选和初步研究,发现其对PARP酶具有明显的抑制作用,可用于制备PARP抑制剂。
附图说明
图1是SD大鼠分别单次静脉给予5mg/kg的A1、A3、A6后的平均血药浓度-时间曲线图;
图2是SD大鼠分别单次经口灌胃给予10mg/kg的A1、A3、A6后的平均血药浓度-时间曲线图。
具体实施例
下面结合具体实施方式对本发明作进一步说明。
实施例1氮杂非那烯-3-酮衍生物的合成
(1)3-硝基邻苯二甲酸酐(化合物1)的合成
将3-硝基邻苯二甲酸(48.5g,0.23mol)加到乙酸酐(45mL)后混合,所得混合物搅拌回流1h。反应结束后,降温至80℃,加入100mL的甲基叔丁基醚后反应液继续搅拌直到降温至15℃。混合物过滤,固体用甲基叔丁基醚淋洗后在40℃烘干得到白色产物(36.7g,82%);
(2)3-硝基邻苯二甲酸甲酯(化合物3)的合成
将步骤(1)合成的3-硝基邻苯二甲酸酐(15g,77.7mmol)溶于200mL甲醇中并加入5mL浓硫酸。混合液加热回流16h。待反应液冷却至室温后倒入冰水中。混合物过滤,固体用水淋洗后烘干得产物(13.1g,71%);
(3)3-氨基邻苯二甲酸甲酯(化合物4)的合成
将步骤(2)得到的3-硝基邻苯二甲酸甲酯(18.1g,75.7mmol)溶于400mL乙醇并加入10%Pd/C(50%含水量,1.8g)。反应液在氢气环境下搅拌反应过夜。反应液过滤,滤饼用乙醇淋洗后有机相旋干得黄色固体产物(14.2g,90%);
(4)化合物5的合成
将3-氨基邻苯二甲酸甲酯(化合物4)(8.3g,40mmol),N-苄氧羰基-4-哌啶酮(10.31g,44mmol)和三氯氧磷(12.27g,7.3mL,)依次加到1,4-二氧六环中(280mL)后混合物在80℃下搅拌反应2h。混合物旋干后将油状粗品经柱层析纯化得到产物(14.6g,93%收率);
(5)化合物6的合成
将化合物5(3.93g,10mmol),Boc2O(2.4g,11mmol)以及10%Pd/C(50%含水量,0.4g)的甲醇溶液(280mL)在氢气环境下搅拌反应过夜。反应液过滤,滤饼用甲醇醇淋洗后有机相旋干。粗产品经柱层析纯化,得黄色油状产物(3.52g,98%);
(6)化合物7的合成
将化合物6(1.9g,5.3mmol)加入10mL无水乙醇后再加入一水水合肼(85%,4mL)。混合物回流搅拌直至反应完,待反应液冷却至室温后加入水(20mL)和乙酸乙酯(20mL)并搅拌5分钟。有机层分离并干燥后旋干。粗产品经柱层析纯化后得到灰白色固体(0.20g,11%);
(7)化合物8的合成
将化合物7(0.20g,0.6mmol)加入氯化氢甲醇溶液(4M,10mL)中后混合液在常温下搅拌反应4小时。将混合液旋干后得到灰白色固体产物(0.15g,92%)。
1H NMR(400MHz,DMSO-d6):δ=12.08(s,1H),7.82-7.94(m,2H),7.63(d,J=8.0Hz,1H),3.63-4.25(m,6H)。
(8)化合物12的合成
将步骤(4)得到的化合物5(6.0g,15.2mmol)以及10%Pd/C(50%含水量,0.6g)的甲醇溶液(80mL)在氢气环境下搅拌反应过夜。反应液过滤,滤饼用甲醇淋洗后有机相旋干。粗产品经柱层析纯化,得黄色油状产物9(2.8g,71%);
化合物9(1.48g,5.7mmol),碳酸钾(1.57g,11.4mmol),碘乙烷(1.78g,11.4mmol)和乙腈(30mL)的混合物室温搅拌过夜。混合物过滤,滤液有经干燥后旋干,粗产物经柱层析纯化后得黄白色固体产物(1.10g,67%)。
将该产物(1.9g,5.3mmol)加入20mL无水乙醇后再加入一水水合肼(85%,4mL)。混合物回流搅拌直至反应完。待反应液冷却至室温后加入水(20mL)和乙酸乙酯(20mL)并搅拌5分钟。有机层分离并干燥后旋干。粗产品经柱层析纯化后得到灰白色固体产物12(0.20g,14.6%)。
1H NMR(400MHz,CDCl3):δ=9.71(s,1H),7.99(m,J=8.0Hz,1H),7.82(m,1H),7.60(d,J=8.0Hz,1H),3.83(m,2H),3.64(s,2H),2.94(m,2H),2.63(m,2H),1.22(t,J=7.2Hz,3H)。
(9)化合物13-16的合成
化合物9(1.70g,6.5mmol),甲醛水溶液(37%,6mL),氰基硼氰化钠(4.24g,20mmol),乙酸(0.5mL)和乙腈(30mL)的混合物室温搅拌1.5h。混合物过滤,滤液有经干燥后旋干,粗产物经柱层析纯化后得黄白色固体产物(1.32g,74%)。
将该产物(1.25g,4.57mmol)加入20mL无水乙醇后再加入一水水合肼(85%,4mL)。混合物回流搅拌直至反应完。待反应液冷却至室温后加入水(20mL)和乙酸乙酯(20mL)并搅拌5分钟。有机层分离并干燥后旋干。粗产品经柱层析纯化后得到灰白色固体产物化合物13(0.18g,15.4%)。
1H NMR(400MHz,DMSO-d6):δ=11.90(s,1H),7.72-7.86(m,2H),7.51-7.54(m,1H),3.49-3.71(m,4H),2.86(t,J=5.6Hz,2H),2.37(s,3H)。
(10)化合物14的合成
化合物9(3.0g,11.57mmol),碳酸钾(2.07g,15mmol),溴代异丙烷(8.54g,69.4mmol)和DMF(30mL)的混合物在80℃搅拌5小时。混合物过滤,滤液有经干燥后旋干,粗产物经柱层析纯化后得黄白色固体产物(1.84g,53%);将该产物(1.80g,5.97mmol)加入30mL无水乙醇后再加入一水水合肼(85%,5mL)。混合物回流搅拌直至反应完。待反应液冷却至室温后加入水(30mL)和乙酸乙酯(30mL)并搅拌5分钟。有机层分离并干燥后旋干。粗产品经柱层析纯化后得到白色固体产物-化合物14(0.27g,15.9%)。
1H NMR(400MHz,DMSO-d6):δ=11.89(s,1H),7.72-7.86(m,2H),7.50(d,J=7.6Hz,1H),3.61-3.66(m,4H),2.86-2.95(m,3H),1.07(d,J=6.4Hz,6H)。
(11)化合物15的合成
化合物9(1.29g,5mmol),碳酸钾(1.38g,10mmol),氯化苄(0.83g,6.5mmol)和乙腈(20mL)的混合物室温搅拌5小时。混合物过滤,滤液有经干燥后旋干,粗产物经柱层析纯化后得黄白色固体产物(1.25g,71.5%)。
将该产物(1.24g,3.55mmol)加入20mL无水乙醇后再加入一水水合肼(85%,4mL)。混合物回流搅拌直至反应完。待反应液冷却至室温后加入水(30mL)和乙酸乙酯(30mL)并搅拌5分钟。有机层分离并干燥后旋干。粗产品经柱层析纯化后得到白色固体产物-化合物15(0.22g,18.7%)。
1H NMR(400MHz,DMSO-d6):δ=11.92(s,1H),7.71-7.84(m,2H),7.31-7.49(m,6H),3.70(m,4H),3.52(s,2H),2.91(m,2H)。
(12)化合物16的合成
化合物9(4.0g,15.4mmol),碳酸钾(4.28g,31mmol),3-甲基-3-丁烯基甲磺酸酯(3.8g,23.1mmol)和乙腈(40mL)的混合物在在60℃搅拌5小时。混合物过滤,滤液有经干燥后旋干,粗产物经柱层析纯化后得黄白色固体产物(3.12g,62%)。
将该产物(3.10g,9.47mmol)加入50mL无水乙醇后再加入一水水合肼(85%,6mL)。混合物回流搅拌直至反应完。待反应液冷却至室温后加入水(40mL)和乙酸乙酯(40mL)并搅拌5分钟。有机层分离并干燥后旋干。粗产品经柱层析纯化后得到白色固体产物-化合物16(0.45g,15.4%)。
1H NMR(400MHz,DMSO-d6):δ=11.88(s,1H),7.71-7.85(m,2H),7.52(m,1H),4.76(m,2H),3.57-3.69(m,4H),2.94(s,2H),2.62(d,J=7.2Hz,2H),2.28(d,J=8.4Hz,2H),1.75(s,3H)。
实施例2氮杂非那烯-3-酮衍生物的活性检测
1.PARP1抑制活性的测定
1.1材料和方法
通用PARP比色法分析试剂盒(美国Trevigen公司)
1.2PARP1抑制活性测定结果
2.A1、A3、A6在SD大鼠体内的初步药代动力学研究
参考化合物对PARP酶抑制率的IC50值,选取A1、A3和A6(其中:A1=化合物8;A2=化合物12;A3=化合物13;A4=化合物14;A5=化合物15;A6=化合物16)三个受试化合物进行药代动力学实验。
2.1材料和方法
2.1.1仪器
Agilent 1200液相色谱仪,API 4000Qtrap三重四级杆液质联用仪
2.1.2受试动物
健康SPF级SD雄性大鼠,18只,体重180~220g,购自上海斯莱克实验动物有限责任公司,动物许可证号为:SCXK(沪)2013-00016。
2.1.3实验过程
实验设置静脉组、灌胃组,实验前动物禁食12-14h,考察受试化合物在静脉血中的浓度,静脉血通过眼眶采血,EDTAK2抗凝;血液样本采集后置于冰上,并于30分钟之内离心分离血浆(离心条件:5000转/分钟,10分钟,室温)。分析前存放于–80℃。
静脉组通过尾静脉注射单次给予5mL/kg的受试化合物;灌胃组单次口服给予10mL/kg的受试化合物。静脉组血样采集时间点为:给予受试化合物前(0hr)和给予受试化合物后15min,30min,1h,2h,4h,6h,8h和24h;灌胃组采集时间点为:给予受试物前(0hr)和给予受试物后30min,1h,2h,4h,6h,8h和24h。
2.1.4测定条件
液相条件:色谱柱:Agilent Eclipse plus-C18(4.6×150mm,5.0μm),流动相:0.1%甲酸水溶液(A)/0.1%甲酸乙腈溶液(B);梯度洗脱,流速:1.00mL/min(分流v:v=1:1);进样量10μL。
质谱条件:选用电喷雾离子源(ESI),选用正离子模式(Postive)下多重离子反应监测(MRM)。
2.1.5标准品溶液配制
精密称取A1、A3、A6适量,分别用DMSO配制成1.00mg/mL储备液。储备液按梯度稀释后获得浓度分别为10000,5000,2000,1000,500,100,50.0,20.0ng/mL的标准工作液,质控工作液浓度为低(30ng/mL)、中(500ng/mL)、高(8000ng/mL)。
2.1.6血浆样品处理方法
取血浆样品10μL,加入100μL维拉帕米内标溶液,涡旋60秒后离心(12000rpm,3min);取上清液70μL移至装有等体积水的96孔进样板上,LC-MS/MS进样分析,进样量为10μL。
2.1.7数据处理
数据采用WinNonlin 6.3药动学计算软件,以非房室模型计算主要药动参数。
2.2方法学验证
按照化学药物非临床药代动力学研究技术指导原则对SD大鼠血浆进行方法学验证,分别从方法专属性、标准曲线线性、精密度和准确度、定量下限、大鼠血浆稀释十倍准确性、基质效应及提取回收率等方面进行了考察,均符合生物样本分析要求。
2.3药代动力学结果
图1SD大鼠分别单次静脉给予5mg/kg的A1、A3、A6后的平均血药浓度-时间曲线图;图2SD大鼠分别单次经口灌胃给予10mg/kg的A1、A3、A6后的平均血药浓度-时间曲线图。
表1 SD大鼠分别单次静脉给予5mg/kg的A1、A3、A6后的药动参数
表2 SD大鼠分别单次经口灌胃给予10mg/kg的A1、A3、A6后的药动参数
从图1、图2,表1、表2的药时曲线图和药动参数结果可知,化合物A1、A3、A6在SD大鼠体内的暴露量水平(AUC0-t)均较高,灌胃给药后,在15min内均可检测到受试化合物,吸收迅速(tmax较短,仅需0.25-0.5h即可达到血药浓度峰值)且作用时间长,特别是化合物A1,其口服生物利用度为67.5±9.5%。
本发明合成了一系列氮杂非那烯-3-酮衍生物衍生物,通过核磁共振波谱仪进行了结构鉴定,并进行PARP酶的活性测定。结果说明,所得氮杂非那烯-3-酮衍生物具有很高的抑制PARP酶的活性。
Claims (4)
1.如式(Ⅰ)所示的氮杂非那烯-3-酮的衍生物:
其中R为氢,甲基,乙基,异丙基,苄基或者3-甲基-3-丁烯基。
2.权利要求1所述的氮杂非那烯-3-酮的衍生物的制备方法,其特征在于工艺如下:
其中R为氢,甲基,乙基,异丙基,苄基或者3-甲基-3-丁烯基。
3.权利要求2所述的氮杂非那烯-3-酮的衍生物的制备方法,其特征在于:
(1)以3-硝基邻苯二甲酸为原料,在乙酸酐的作用下反应生成3-硝基邻苯二甲酸酐;
(2)3-硝基邻苯二甲酸酐在硫酸存在下与甲醇反应生成3-硝基邻苯二甲酸二甲酯;
(3)3-硝基邻苯二甲酸二甲酯通过催化氢化还原得到3-氨基邻苯二甲酸二甲酯;
(4)3-氨基邻苯二甲酸二甲酯在三氯氧磷存在下与N-苄氧羰基-4-哌啶酮缩合生成化合物5;
(5)化合物5在Boc2O存在下催化氢化得到化合物6;然后化合物6与水合肼缩合生成化合物7;化合物7脱除保护基得到化合物8;
(6)化合物5催化氢化脱除苄氧羰基保护基Cbz得到化合物9,然后化合物9的氨基进行烷基化得到化合物10,化合物10在乙醇中和水合肼发生缩合得到一系列氮杂非那烯-3-酮的衍生物。
4.权利要求1所述的氮杂非那烯-3-酮的衍生物用于制备作为PARP抑制剂治疗肿瘤的药物的用途。
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