CN112961120B - 一种萘基脲类化合物、其制备方法及应用 - Google Patents

一种萘基脲类化合物、其制备方法及应用 Download PDF

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CN112961120B
CN112961120B CN202110165298.1A CN202110165298A CN112961120B CN 112961120 B CN112961120 B CN 112961120B CN 202110165298 A CN202110165298 A CN 202110165298A CN 112961120 B CN112961120 B CN 112961120B
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徐学军
杨玉坡
杨争艳
徐红运
段超群
张尊
张韶华
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Henan Radiomedical Science And Technology Co ltd
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Abstract

本发明提供了一种萘基脲类化合物、其制备方法及应用,其含有的具有生物活性萘脲母核基团进一步化学修饰产生诸多生物活性更高化合物,拓展了此类化合物在生物医药上的广泛应用以及药物制剂开发前景。该类化合物在低剂量(亚微摩尔)即可显著抑制肝癌、乳腺癌、肺癌、耐药的肺癌和白血病等细胞的增殖,诱导细胞周期G2/M期阻滞,并促进细胞凋亡,表明该类化合物具有开发为抗肿瘤药物的前景。

Description

一种萘基脲类化合物、其制备方法及应用
技术领域
本发明属于肿瘤靶向治疗领域,具体涉及一种萘基脲类化合物、其制备方法及应用。
背景技术
根据2020年国际癌症研究机构发布的报告,全球癌症负担持续增长,2020年有18094 716例新发和9 894 402例死亡癌症患者。其中乳腺癌患者的新增发病率最高,肺癌导致的死亡病例最多,此外,结直肠癌、胃癌和肝癌的发病和死亡率也很高。传统的化疗药物紫杉醇、顺铂和阿霉素等,在早期可以有效抑制肿瘤生长,但是治疗一段时间后往往会发生耐药,失去治疗效果。而曲妥珠单抗、吉非替尼、索拉替尼等靶向抗癌药物的治疗反应率和疗效均有待提高。因此迫切需要开发新的抗癌药物。
细胞周期由一系列相对独立的阶段构成,包括依次进行的G1,S,G2和M四期。细胞周期过程组织严密,每一期的开始都必须依赖前一期的完成。这一有序的进程受到周期检测点的精确调控,后者能使细胞周期在多种应激如氧自由基、紫外线辐射、化学药物和重金属等损伤的情况下暂时停滞或延迟,为细胞赢得修复损伤的机会。细胞周期过程中有两个重要的检测点,即G1/S期和G2/M期检测点,它们负责调控DNA复制,蛋白质的合成和细胞分裂等重大事件,对于维持基因组结构和功能的完整性至关重要。
许多肿瘤的治疗方案包括放疗和一些化疗药物通过破坏基因结构,增强基因组的不稳定性,引发细胞死亡而达到杀伤肿瘤细胞的目的。然而,这些损伤也会导致细胞周期阻滞,修复损伤,而引发肿瘤对治疗的抵抗。由于基因或蛋白的突变在恶性肿瘤中经常出现,细胞周期检测点的缺失具有一定的普遍性。缺乏G1/S期检测点的肿瘤细胞主要依靠G2/M期检测点来修复损伤的。因此,选择性的抑制周期检测点的表达,能增强肿瘤对损伤的敏感性,已成为一种重要的抑瘤策略。
为了抑制恶性肿瘤细胞的增殖和发展,我们近期合成了一类具有全新结构式的萘基脲类化合物。通过一些生物学技术分析,发现该类化合物能够显著抑制肝癌、乳腺癌、肺癌和白血病细胞株的细胞增殖,诱导细胞发生G2/M期阻滞和细胞凋亡。因此,对此类化合物进一步开发,将在肿瘤治疗的应用方面具有重要的意义。
本发明旨在揭示一类新型萘基脲类化合物及其衍生物的抗肿瘤作用及其潜在作用靶点和抑瘤机制。
发明内容
本发明的目的是提供一种萘基脲类化合物、其制备方法及应用。
一种萘基脲类化合物,结构式如通式I所示:
Figure BDA0002937581960000021
其中,R选自氢、C1~C5直链烷基、末端被卤素取代的C1~C5直链烷基、5~8元环烷基、
Figure BDA0002937581960000022
R1、R2、R3、R4、R5、R6、R7、R8、R9各自独立地选自H、F、Cl、Br、-CN、-CH3、-CF3、-OCH3、-OCF3,R5还为苯基,M为H或-CH3
n代表CH2取代基的个数,n为1、2、3、4...10;
A为
Figure BDA0002937581960000023
其中p代表CH2取代基的个数,p为1、2、3;
X为O或S。
上述萘基脲类化合物,具体为如下结构的化合物:
Figure BDA0002937581960000031
Figure BDA0002937581960000041
上述萘基脲类化合物与乙酸、二氢叶酸、苯甲酸、柠檬酸、山梨酸、丙酸、草酸、富马酸、马来酸、盐酸、苹果酸、磷酸、亚硫酸、硫酸、香草酸、酒石酸、抗坏血酸、硼酸、乳酸和乙二胺四乙酸中的至少一种形成的生物学可接受的盐。
上述萘胺类化合物的制备方法,包括以下步骤:
(1)将
Figure BDA0002937581960000042
溶于四氢呋喃中,-5℃~5℃分批加入NaH,再加入
Figure BDA0002937581960000051
室温搅拌反应至完全,后处理得到
Figure BDA0002937581960000052
(2)将
Figure BDA0002937581960000053
溶于乙醇和饱和氯化铵水溶液的混合溶液中,40~50℃下加入铁粉,50~60℃搅拌反应至完全,经后处理得到
Figure BDA0002937581960000054
(3)将化合物
Figure BDA0002937581960000055
R基异氰酸酯或R基异硫氰酸酯和N,N-二异丙基乙胺溶于1,2-二氯乙烷中,80~90℃搅拌反应至完全,柱层析得到
Figure BDA0002937581960000056
优选地,所述
Figure BDA0002937581960000057
的制备过程如下:
(a)将
Figure BDA0002937581960000058
和三苯基膦溶于四氢呋喃中,-5℃~5℃保护气氛下加入偶氮二甲酸二异丙酯,室温搅拌反应至完全,经后处理得到
Figure BDA0002937581960000061
(b)将化合物
Figure BDA0002937581960000062
溶于四氢呋喃中,-5℃~5℃分批加入四氢铝锂,室温搅拌至反应完全,经后处理得到
Figure BDA0002937581960000063
优选地,所述步骤(1)中
Figure BDA0002937581960000064
与NaH的摩尔比为1:1.2:2;
步骤(2)中
Figure BDA0002937581960000065
与铁粉的摩尔比为1:5,乙醇和饱和氯化铵水溶液的体积比为1:1;
步骤(3)中,
Figure BDA0002937581960000066
R基异氰酸酯或R基异硫氰酸酯和N,N-二异丙基乙胺的摩尔比为1:1.2:2.0。
优选地,步骤(a)中,
Figure BDA0002937581960000067
三苯基膦、偶氮二甲酸二异丙酯的摩尔比为1:1.2:1.2:1.2;
步骤(b)中,
Figure BDA0002937581960000071
和四氢铝锂的摩尔比为1:1。
上述的萘基脲类化合物及其生物学可接受的盐在制备抗肿瘤药物中的用途。
优选地,所述的抗肿瘤药物是指治疗肝癌、乳腺癌、肺癌、耐药的肺癌和白血病的药物。
本发明的另一目的是提供一类具有抗肿瘤活性的小分子化合物。
所述肿瘤具体可为CyclinB1高表达或增殖旺盛的肿瘤,包括但不限于肝癌、乳腺癌、肺癌、酪氨酸激酶抑制剂(TKI)耐药的肺癌、结肠癌和白血病等。
具体的说,本发明合成了一类具有全新结构的萘基脲类化合物ID1120B-1及其衍生物ID1214B-1,IY1214A-1和IY1214B-2等。通过MTT法检测此类化合物对多种癌细胞的增殖抑制作用;通过流式细胞术检测化合物对肿瘤细胞的细胞周期和凋亡的影响。
结果表明,本发明的化合物ID1120B-1,ID1214B-1,IY1214A-1和IY1214B-2等,可以有效抑制肝癌、乳腺癌、肺癌和白血病细胞的增殖,诱导细胞G2/M期阻滞和细胞凋亡。
总之,本发明提供了一种新的萘基脲类化合物以及它的衍生物在肿瘤治疗上的用途和潜在分子机制。
附图说明
图1、图2是MTT检测ID1120B-1及其衍生物ID1120B-P、ID1214B-1,IY1214A-1和IY1214B-2对肝癌细胞、乳腺癌细胞、非小细胞肺癌细胞和白血病细胞的增殖抑制作用,实验结果以IC50(μM)值进行表征,Sorafinib,WP1066和Gefitinib作为阳性对照药物;
图3、图4是通过流式细胞术检测化合物ID1120B-1及其衍生物ID1214B-1,IY1214A-1和IY1214B-2对肝癌细胞HepG2的细胞周期的影响;
图5是对图3、图4结果的统计分析;
图6是通过流式细胞术检测化合物IY1214A-1和IY1214B-2对肝癌细胞HepG2的细胞凋亡的影响;
图7是通过Q-PCR检测IY1214B-2对细胞周期和自噬相关分子的mRNA水平的影响。
具体实施方式
为了使本发明的技术目的、技术方案和有益效果更加清楚,下面结合附图和具体实施例对本发明的技术方案作出进一步的说明。
在本发明合成式I化合物的方法中,反应所用的各种原材料是本领域技术人员根据已有知识可以制备得到的,或者是可以通过文献公知的方法制得的,或者是可以通过商业购得的。以上反应方案中所用的中间体、原材料、试剂、反应条件等均可以根据本领域技术人员已有知识做适当改变的。
在本发明中,除非另外说明,其中:(i)温度以摄氏度(℃)表示,操作在室温环境下进行;更具体地,所述室温是指20-30℃;(ii)有机溶剂用常用干燥方法干燥,溶剂的蒸发使用旋转蒸发仪减压蒸发,浴温不高于50℃;展开剂和洗脱剂均为体积比;(iii)反应过程用薄层色谱(TLC)跟踪;(iv)终产物具有满意的质子核磁共振(1H-NMR)。
实施例1:化合物的合成
Figure BDA0002937581960000081
ID1120B-1:
Figure BDA0002937581960000082
R1=H,R2=H,n=2,
Figure BDA0002937581960000083
X=O;
ID1120C-1:
Figure BDA0002937581960000084
R1=H,R2=Cl,n=2,
Figure BDA0002937581960000085
X=O
ID1120D-1:
Figure BDA0002937581960000086
R1=CN,R2=H,n=2,
Figure BDA0002937581960000087
X=O;
IY210119B-1:
Figure BDA0002937581960000088
R1=H,R2=H,n=2,
Figure BDA0002937581960000089
X=O;
IY210119B-1:
Figure BDA0002937581960000091
R1=H,R2=H,n=2,
Figure BDA0002937581960000092
X=O;
IY210118B-1:
Figure BDA0002937581960000093
R1=H,R2=H,n=2,
Figure BDA0002937581960000094
X=O;
IY210113D-1:
Figure BDA0002937581960000095
R1=H,R2=H,n=2,
Figure BDA0002937581960000096
X=O;
IY1210B-1:
Figure BDA0002937581960000097
R1=H,R2=H,n=2,
Figure BDA0002937581960000098
X=O;
ID210106D-1:
Figure BDA0002937581960000099
R1=H,R2=H,n=2,
Figure BDA00029375819600000910
X=O;
ID210118D-1:
Figure BDA00029375819600000911
R1=H,R2=H,n=2,
Figure BDA00029375819600000912
X=O;
ID210113C-1:R=
Figure BDA00029375819600000926
R1=H,R2=H,n=2,
Figure BDA00029375819600000913
X=O;
IY210113C-1:
Figure BDA00029375819600000914
R1=H,R2=H,n=2,
Figure BDA00029375819600000915
X=O;
ID210118C-1:
Figure BDA00029375819600000916
R1=H,R2=H,n=2,
Figure BDA00029375819600000917
X=O;
ID210115B-1:
Figure BDA00029375819600000918
R1=H,R2=H,n=2,
Figure BDA00029375819600000919
X=O;
ID210114B-1:
Figure BDA00029375819600000920
R1=H,R2=H,n=2,
Figure BDA00029375819600000921
X=O;
ID1210B-1:
Figure BDA00029375819600000922
R1=H,R2=H,n=2,
Figure BDA00029375819600000923
X=O;
IY1207A-1:
Figure BDA00029375819600000924
R1=H,R2=H,n=2,
Figure BDA00029375819600000925
X=S;
IY1223B-1:
Figure BDA0002937581960000101
R1=H,R2=H,n=2,
Figure BDA0002937581960000102
X=O;
IY1214A-1:
Figure BDA0002937581960000103
R1=H,R2=H,n=2,
Figure BDA0002937581960000104
X=O;
ID1214B-1:
Figure BDA0002937581960000105
R1=H,R2=H,n=2,
Figure BDA0002937581960000106
X=O;
IY1225B-1:
Figure BDA0002937581960000107
R1=H,R2=H,n=2,
Figure BDA0002937581960000108
X=O;
IY1210A-1:
Figure BDA0002937581960000109
R1=H,R2=H,n=2,
Figure BDA00029375819600001010
X=O;
IY1226B-1:
Figure BDA00029375819600001011
R1=H,R2=H,n=2,
Figure BDA00029375819600001012
X=O;
IY1229C-1:
Figure BDA00029375819600001013
R1=H,R2=H,n=2,
Figure BDA00029375819600001014
X=O;
ID1229C-1:
Figure BDA00029375819600001015
R1=H,R2=H,n=2,
Figure BDA00029375819600001016
X=O;
ID1229D-1:
Figure BDA00029375819600001017
R1=H,R2=H,n=2,
Figure BDA00029375819600001018
X=O;
ID1224D-1:
Figure BDA00029375819600001019
R1=H,R2=H,n=2,
Figure BDA00029375819600001020
X=O;
ID1231B-1:
Figure BDA00029375819600001021
R1=H,R2=H,n=2,
Figure BDA00029375819600001022
X=O;
IY1214B-2:
Figure BDA00029375819600001023
R1=H,R2=H,n=2,
Figure BDA00029375819600001024
X=O;
ID1224C-1:
Figure BDA0002937581960000111
R1=H,R2=H,n=2,
Figure BDA0002937581960000112
X=O;
IY1229D-1:
Figure BDA0002937581960000113
R1=H,R2=H,n=2,
Figure BDA0002937581960000114
X=O;
IY210103B-1:
Figure BDA0002937581960000115
R1=H,R2=H,n=2,
Figure BDA0002937581960000116
X=O;
IY210105B-1:
Figure BDA0002937581960000117
R1=H,R2=H,n=2,
Figure BDA0002937581960000118
X=O;
IY210105C-1:
Figure BDA0002937581960000119
R1=H,R2=H,n=2,
Figure BDA00029375819600001110
X=O;
ID210105C-1:
Figure BDA00029375819600001111
R1=H,R2=H,n=2,
Figure BDA00029375819600001112
X=O;
IY210105D-1:
Figure BDA00029375819600001113
R1=H,R2=H,n=2,
Figure BDA00029375819600001114
X=O;
IY210105A-1:
Figure BDA00029375819600001115
R1=H,R2=Br,n=2,
Figure BDA00029375819600001116
X=O;
IY210106D-1:
Figure BDA00029375819600001117
R1=H,R2=F,n=2,
Figure BDA00029375819600001118
X=O;
ID210110C-1:
Figure BDA00029375819600001119
R1=H,R2=Cl,n=2,
Figure BDA00029375819600001120
X=O;
IY210110D-1:
Figure BDA00029375819600001121
R1=H,R2=OMe,n=2,
Figure BDA00029375819600001122
X=O;
ID1207B-1:
Figure BDA00029375819600001123
R1=H,R2=H,n=2,
Figure BDA00029375819600001124
X=O;
ID1217B-1:
Figure BDA00029375819600001125
R1=H,R2=H,n=2,
Figure BDA00029375819600001126
X=O;
ID1223A-1:R=H,R1=H,R2=H,n=2,
Figure BDA0002937581960000121
X=O;
ID1215B-1:
Figure BDA0002937581960000122
R1=H,R2=H,n=2,
Figure BDA0002937581960000123
X=O;
ID1215C-1:
Figure BDA0002937581960000124
R1=Cl,R2=H,n=2,
Figure BDA0002937581960000125
X=O;
IY1215C-1:
Figure BDA0002937581960000126
R1=F,R2=H,n=2,
Figure BDA0002937581960000127
X=O;
ID1215A-1:
Figure BDA0002937581960000128
R1=H,R2=H,n=2,
Figure BDA0002937581960000129
X=O;
IY1215D-1:
Figure BDA00029375819600001210
R1=CN,R2=H,n=2,
Figure BDA00029375819600001211
X=O;
IY210122C-1:
Figure BDA00029375819600001212
R1=H,R2=H,n=2,
Figure BDA00029375819600001213
X=O;
ID210119B-1:
Figure BDA00029375819600001214
R1=H,R2=H,n=2,
Figure BDA00029375819600001215
X=O;
IY210128B-1:
Figure BDA00029375819600001216
R1=H,R2=H,n=2,
Figure BDA00029375819600001217
X=O;
ID210127B-1:
Figure BDA00029375819600001218
R1=H,R2=H,n=2,
Figure BDA00029375819600001219
X=O;
具体合成方法,以化合物ID1120B-1和ID1120B-P为例,结构式分别如下:
Figure BDA00029375819600001220
化合物ID1120B-1的名称为1-benzyl-3-(4-((4-(2-(piperidin-1-yl)ethoxy)benzyl)oxy)naphthalen-1-yl)urea,
其合成路线如下:
Figure BDA0002937581960000131
步骤1.methyl 4-(2-(piperidin-1-yl)ethoxy)benzoate(2)
将4-羟基苯甲酸甲酯(1.0g,6.57mmol,1.0eq),N-羟乙基哌啶(1.02g,7.89mmol,1.2eq)和三苯基膦(2.07g,7.89mmol,1.2eq)溶解到30mL无水四氢呋喃中,降温到0℃,氮气保护下慢慢滴加偶氮二甲酸二异丙酯(1.59g,7.89mmol,1.2eq),然后室温反应16小时。TLC监测反应完毕后,减压浓缩除去四氢呋喃,固体用乙酸乙酯溶解,用1N的盐酸水溶液调节pH到1,乙酸乙酯萃取三次,水相用碳酸氢钠固体调节pH到8,再用乙酸乙酯萃取三次,有机相干燥旋干得到1.5g白色固体methyl 4-(2-(piperidin-1-yl)ethoxy)benzoate(2),收率86.7%。
1H NMR(CDCl3,300MHz)δ:8.0(d,J=9.0Hz,2H),6.93(d,J=9.0Hz,2H),4.17(t,J=6.0Hz,2H),3.90(s,3H),2.82(t,J=6.0Hz,2H),2.58-2.55(m,4H),1.66-1.61(m,4H),1.50(t,J=3.0Hz,2H)
步骤2.(4-(2-(piperidin-1-yl)ethoxy)phenyl)methanol(3)
将化合物(2)(1.00g,3.80mmol,1.0eq)溶于40mL无水四氢呋喃,冷却到0℃,分批加入四氢铝锂(144mg,3.80mmol,1.0eq),自然升温到室温反应0.5小时。TLC监测显示原料反应完毕,并有新点产生。将反应液冷却到0℃,依次加入1mLNaOH(15wt%)水溶液,1mL水;硅藻土过滤,滤液旋干得到680mg(4-(2-(piperidin-1-yl)ethoxy)phenyl)methanol(3),白色固体,收率88.7%。
1H NMR(CDCl3,300MHz)δ:7.30(d,J=6.0Hz,2H),6.92(d,J=6.0Hz,2H),4.64(s,2H),4.17(t,J=6.0Hz,2H),2.98(t,J=6.0Hz,2H),2.74(m,4H),1.89-1.86(m,6H)
步骤3. 1-(2-(4-(((4-nitronaphthalen-1-yl)oxy)methyl)phenoxy)ethyl)piperidine(4)
将化合物(3)(1.03g,4.39mmol,1.2eq)溶解于30mL无水四氢呋喃中,冷却到0℃,分批加入NaH(293mg,7.32mmol,2eq),半小时后加入1-氟-4-硝基萘(700mg,3.66mmol,1.0eq),继续室温反应12小时。TLC监测反应完毕后,倒入100mL饱和氯化铵水溶液中,用乙酸乙酯萃取3次(100mL*3),将有机相合并,用无水硫酸钠干燥,旋干过柱(二氯甲烷:甲醇=60:1~20:1)得到710mg 1-(2-(4-(((4-nitronaphthalen-1-yl)oxy)methyl)phenoxy)ethyl)piperidine(4),黄色固体,收率47.6%。
1H NMR(CDCl3,400MHz)δ:8.81(d,J=8.0Hz,2H),8.45-8.41(m,2H),7.77-7.75(m,1H),7.63-7.60(m,1H),7.47(d,J=8.0Hz,2H),7.0(d,J=8.0Hz,2H),6.93-6.90(m,1H),5.32(s,2H),1.89-1.86(m,6H),4.37(t,J=6.0Hz,2H),3.55-3.30(m,4H),2.97(t,J=6.0Hz,2H),1.79-1.67(m,4H),1.65(m,4H),1.39-1.20(m,2H).
步骤4. 4-((4-(2-(piperidin-1-yl)ethoxy)benzyl)oxy)naphthalen-1-amine(5)
将化合物(4)(700mg,1.72mmol,1.0eq)溶解于25mL乙醇和25mL饱和氯化铵水溶液中,升温至45℃,分批缓慢加入铁粉(480mg,8.61mmol,5.0eq),升温至55℃反应2小时。TLC监测反应完毕后,硅藻土过滤,滤液用乙酸乙酯萃取3次(100mL*3),将有机相合并,用无水硫酸钠干燥,旋干过柱(二氯甲烷:甲醇=60:1~20:1)得到350mg 4-((4-(2-(piperidin-1-yl)ethoxy)benzyl)oxy)naphthalen-1-amine(5),紫红色油状物,收率54%。
1H NMR(CDCl3,300MHz)8.20(d,J=9.0Hz,1H),8.13(d,J=9.0Hz,2H),7.63-7.52(m,2H),7.34-7.21(m,3H),6.92(d,J=9.0Hz,1H),6.82(d,J=9.0Hz,1H),4.50(s,2H),4.37(t,J=6.0Hz,2H),3.55-3.30(m,4H),2.97(t,J=6.0Hz,2H),1.79-1.67(m,4H),1.65(m,4H),1.39-1.20(m,2H).
步骤5.1-benzyl-3-(4-((4-(2-(piperidin-1-yl)ethoxy)benzyl)oxy)naphthalen-1-yl)urea(ID1120B-1)将化合物(5)(200mg,0.53mmol,1.0eq),苄基异氰酸酯(84.9mg,0.64mmol,1.2eq)和DIEA(137mg,1.06mmol,2.0eq)溶于25毫升1,2-二氯乙烷中,85℃反应12小时。TLC监测反应完毕后,直接旋干过柱(二氯甲烷:甲醇=50:1~15:1)得到210mg 1-benzyl-3-(4-((4-(2-(piperidin-1-yl)ethoxy)benzyl)oxy)naphthalen-1-yl)urea(ID1120B-1),棕色固体,收率77.8%。
1H NMR(DMSO-d6,300MHz)δ:8.32(s,1H),8.19(d,J=8.0Hz,1H),8.01(d,J=8.0Hz,2H),7.68(d,J=8.0Hz,2H),7.58-7.26(m,8H),7.05-6.98(m,3H),6.82(m,1H),5.20(s,2H),4.34(d,J=4.0Hz,2H),4.11(m,2H),2.52(m,2H),1.53(m,4H),1.40(m,2H),1.39-1.20(m,2H).
化合物1b~1m的合成方法参照实施例1,区别在于,在步骤5中换成相应的异氰酸酯即可。
化合物ID1120B-P的名称为1-benzyl-3-(4-((4-(2-(piperidin-1-yl)ethoxy)benzyl)oxy)naphthalen-1-yl)urea phosphate,
其合成路线如下:
Figure BDA0002937581960000151
将ID1120B-1(2100mg,0.20mmol,1.0eq)溶于10毫升DMSO,加入85%磷酸水溶液(45mg,0.40mmol,2.0eq),50℃反应2小时。TLC监测反应完毕后,倒入50毫升水中,用二氯甲烷:甲醇10:1萃取两次,有机相合并,用无水硫酸钠干燥旋干得到115毫克1-benzyl-3-(4-((4-(2-(piperidin-1-yl)ethoxy)benzyl)oxy)naphthalen-1-yl)urea phosphate(ID1120B-P),棕色固体,收率90%。
实施例2、ID1120B-1、其衍生物ID1214B-1,ID210127B-1、IY1214A-1和IY1214B-2以及其磷酸盐ID1120B-P对肝癌细胞、乳腺癌、肺癌、吉非替尼或阿法替尼耐药的肺癌和白血病细胞的增殖抑制作用
分别收集对数生长期的HepG2,SMMC-7721,HuH-7,MCF-7,MDA-MB-231,MDA-MB-468,PC9,PC9-AR,PC9-GR,Jurkat和Molt-13细胞,计数,调整细胞悬液浓度为5×104个/mL,加入96孔细胞培养板,每孔体积100ul。以DMSO为溶剂对照,Sorafinib、WP1066(中文名称:(2E)-3-(6-溴-2-吡啶基)-2-氰基-N-[(1S)-1-苯基乙基]-2-丙烯酰胺,CAS:857064-38-1,结构为
Figure BDA0002937581960000152
)或Gefitinib为阳性对照,将本发明所述的萘脲类化合物ID1120B-1及其衍生物ID1214B-1,IY1214A-1和IY1214B-2等用DMSO稀释后加入培养孔,使体系中化合物的终浓度分别为0.1、0.3、1、3、10、30、100和300(μmol/L)。继续培养48h后,每孔加入MTT溶剂(5mg/ml)10μL,37℃孵育4h,吸弃培养上清,每孔加入150μl DMSO,摇床震荡脱色10min,酶标仪读值,测定在吸收波长为490nm下的OD值,记录结果,以化合物的剂量为横坐标,吸光值为纵坐标绘制细胞生长曲线。所述的ID1120B-1及其衍生物ID1214B-1,IY1214A-1和IY1214B-2对肿瘤细胞的半数抑制率(IC50值)的统计结果如下表及图1和图2所示:
Figure BDA0002937581960000161
Figure BDA0002937581960000171
表中显示:ID1120B-1及其衍生物ID1214B-1,IY1214A-1和IY1214B-2等对肝癌细胞、乳腺癌、肺癌和白血病细胞均有良好的增殖抑制作用,特别是在肝癌细胞的抑瘤活性更强,我们重点对这四种化合物的抗肿瘤效应进行了进一步研究。
实施例2、ID1120B-1及其衍生物ID1214B-1,IY1214A-1和IY1214B-2诱导肝癌细胞的G2/M周期阻滞。
取对数生长期的HepG2细胞,消化后离心并将细胞制成单细胞悬液。计数后将细胞铺入1个12孔板,每孔2×105个细胞,铺3个孔做平行对照。铺板16h后,用梯度浓度的化合物分别处理细胞。48h后,胰酶消化细胞,重悬之后计数,将细胞浓度调整为5×105个。消化完成后离心弃上清,再用PBS洗细胞两遍(2000rpm,离心5min),之后弃尽上清,每管加入980μl的70%冷乙醇和20μl的5%BSA(添加少量BSA可以减少操作过程中的细胞损失)在4℃条件下固定过夜。弃固定液,用PBS洗3遍以去除残余的固定液(1000rpm,离心3min)。细胞洗涤完成后,按DNA含量检测试剂盒(北京索莱宝公司产品)的说明书的要求进行后续操作。每个样品分别用100μl Rnase A于37度孵育30min,然后每个样品中加入500μl已经配制好的PI(碘化丙啶)工作液,室温避光孵育30min。最后,通过流式细胞仪测定细胞周期。采用ModFit软件对实验结果进行分析,通过Graphpad prism 6.0进一步分析得到两种细胞各自的细胞周期比例。
图3、图4是用ModFit软件分析ID1120B-1及其衍生物ID1214B-1,IY1214A-1和IY1214B-2对HepG2肝癌细胞的周期分布的影响的结果。图5是通过Graphpad prism 6.0对图3、图4结果的进一步定量分析。图3、图4和图5结果表明,与溶剂对照组(DMSO)相比,化合物ID1120B-1及其衍生物ID1214B-1,IY1214A-1和IY1214B-2均可以剂量依赖的方式诱导肝癌细胞的G2/M期比率显著增加,G1/S期的比率相应减少。ID1120B-1诱导肝癌细胞的G2期比率由8.72%延长至15.9%;ID1214B-1诱导G2期由10.6%延长至17.54%;IY1214A-1诱导G2期由13.35%延长至34.54%;IY1214B-2诱导G2期由9.6%延长至21.71%。
实施例3、IY1214A-1和IY1214B-2诱导肝癌细胞凋亡
取对数生长期的HepG2细胞,消化后离心并将细胞制成单细胞悬液。计数后将细胞铺入1个12孔板,每孔2×105个细胞,铺3个孔做平行对照。铺板16h后,用梯度浓度的化合物分别处理细胞48h。用不含EDTA的胰酶消化细胞,重悬之后计数,将细胞浓度调整为1×106个。用Annexin V FITC-PI细胞凋亡检测试剂盒(北京索莱宝公司产品)的说明书的要求进行用后续操作。具体为:1×PBS洗细胞2遍(6000rpm,离心0.5min),用1×Binding buffer洗细胞1遍(6000rpm,离心0.5min)之后弃尽上清,以300μl的1×Binding buffer重悬细胞,每管加入5μl Annexin V-FITC,避光孵育10min。随后,每管加入5μl的PI,避光孵育5min。避光上机检测。
图6是流式细胞术检测IY1214A-1和IY1214B-2对HepG2肝癌细胞凋亡的影响。结果显示,与对照组相比,IY1214A-1和IY1214B-2均可以剂量依赖的方式诱导细胞凋亡增加。IY1214A-1 4μM和8μM处理48h后,细胞的凋亡率分别为57.7%和63%,均较对照孔升高2倍以上;IY1214B-2 8μM处理48h后,细胞的凋亡率为47.1%,与未处理孔比较,凋亡率约升高3.3倍。
实施例4、IY1214B-2影响细胞周期调控分子和自噬相关基因的表达
将肝癌HepG2细胞接种于6孔板,每孔1×106个细胞。加化合物IY1214B-2(浓度为0和10μM)处理24h。按照TRIzol一步法提取细胞总RNA,测定RNA浓度和纯度。以总RNA为模板,按Promega公司反转录试剂盒说明书合成cDNA。半定量RT-PCR和实时定量RT-PCR扩增检测CCNB1、CDKl和SQSTM,以ACTB为内参照。所用引物见表1。
表1:
Figure BDA0002937581960000181
实时定量RT-PCR
反应体系:
Figure BDA0002937581960000182
Figure BDA0002937581960000191
每组样品设3个复孔。
反应条件:
95℃预变性5min。
变性 95℃ 15sec
退火 60℃ 15sec
延伸 72℃ 30sec
扩增40个循环,以β-actin的CT值作为初始值进行数据分析。
图7是通过Q-PCR检测IY1214B-2对细胞周期和自噬相关分子的mRNA水平的影响。结果表明,IY1214B-2以0和10μM处理24h后,与内存蛋白β-actin的基因(ATCB)的表达水平相比,细胞周期G2期调控分子Cyclin B1(基因名:CCNB1)和CDC2(基因名:CDK1)的mRNA水平约下调20-25%,细胞自噬相关标志物P62(基因名:SQSTM)的表达上调约2.5倍。表明IY1214B-2可以通过从mRNA水平下调Cyclin B1和CDC2的表达,诱导G2/M期阻滞或通过从mRNA水平上调P62的表达,促进自噬,抑制肿瘤细胞生长。
综上结果表明,ID1120B-1及其衍生物ID1214B-1,IY1214A-1和IY1214B-2可以显著抑制肝癌细胞、乳腺癌、肺癌、吉非替尼或阿法替尼耐药的肺癌和白血病细胞的增殖,诱导肝癌HepG2细胞发生G2/M周期阻滞和细胞凋亡,显示了良好的抗癌作用。
按照药物开发的一般途径(先进行常规的抗肿瘤体外筛选,然后进行针对性的研究),本发明的化合物可以应用到与细胞增殖异常相关的癌症治疗药物中,可通过与人体可接受的成盐或与药用载体混合制备抗肿瘤药物。
最后所应说明的是:上述实施例仅用于说明而非限制本发明的技术方案,任何对本发明进行的等同替换及不脱离本发明精神和范围的修改或局部替换,其均应涵盖在本发明权利要求保护的范围之内。

Claims (9)

1.一种萘基脲类化合物,其特征在于,结构式如通式 I所示:
Figure 430673DEST_PATH_IMAGE001
Figure 374358DEST_PATH_IMAGE002
I
其中,R选自氢、C1~C5直链烷基、末端被卤素取代的C1~C5直链烷基、5~8元环烷基、
Figure 448363DEST_PATH_IMAGE003
Figure 161104DEST_PATH_IMAGE004
Figure 147514DEST_PATH_IMAGE005
Figure 66578DEST_PATH_IMAGE006
,R1、R2、R3、R4、R6、R7、R8、R9各自独立地选自H、F、Cl、Br、-CN、-CH3、-CF3、-OCH3、-OCF3,R5选自H、F、Cl、Br、-CN、-CH3、-CF3、-OCH3、-OCF3、苯基,M为H或-CH3
m代表 CH2 取代基的个数,m 为0、1;
n 代表 CH2 取代基的个数,n 为 1、2、3、4;
A 为
Figure 711318DEST_PATH_IMAGE007
,其中 p 代表 CH2 取代基的个数 ,p 为 2;
X为O或S。
2.根据权利要求 1 所述的萘基脲类化合物,其特征在于,具体为如下结构的化合物:
Figure 590150DEST_PATH_IMAGE008
Figure 481882DEST_PATH_IMAGE009
Figure 665739DEST_PATH_IMAGE010
Figure 114169DEST_PATH_IMAGE011
3.权利要求 1 或 2 所述的萘基脲类化合物与乙酸、二氢叶酸、苯甲酸、柠檬酸、山梨酸、丙酸、草酸、富马酸、马来酸、盐酸、苹果酸、磷酸、亚硫酸、硫酸、香草酸、酒石酸、抗坏血酸、硼酸、乳酸和乙二胺四乙酸中的至少一种形成的生物学可接受的盐。
4.权利要求 1 或 2 所述的萘基脲类化合物的制备方法,其特征在于,包括以下步骤:
(1)将
Figure 801502DEST_PATH_IMAGE012
溶于四氢呋喃中,-5℃~5℃分批加入NaH,再加入
Figure 129715DEST_PATH_IMAGE013
,室温搅拌反应至完全,后处理得到
Figure 787486DEST_PATH_IMAGE014
(2)将
Figure 492137DEST_PATH_IMAGE014
溶于乙醇和饱和氯化铵水溶液的混合溶液中,40~50℃下加入铁粉,50~60℃搅拌反应至完全,经后处理得到
Figure 299556DEST_PATH_IMAGE015
(3)将化合物
Figure 549403DEST_PATH_IMAGE015
、R基异氰酸酯或R基异硫氰酸酯和N,N-二异丙基乙胺溶于1,2-二氯乙烷中,80~90℃搅拌反应至完全,柱层析得到
Figure 442272DEST_PATH_IMAGE016
5.根据权利要求4所述的萘基脲类化合物的制备方法,其特征在于,所述
Figure 731040DEST_PATH_IMAGE012
的制备过程如下:
(a)将
Figure 392966DEST_PATH_IMAGE017
Figure 62981DEST_PATH_IMAGE018
和三苯基膦溶于四氢呋喃中,-5℃~5℃保护气氛下加入偶氮二甲酸二异丙酯,室温搅拌反应至完全,经后处理得到
Figure 193880DEST_PATH_IMAGE019
(b)将化合物
Figure 974754DEST_PATH_IMAGE019
溶于四氢呋喃中,-5℃~5℃分批加入四氢铝锂,室温搅拌至反应完全,经后处理得到
Figure 756765DEST_PATH_IMAGE012
6.根据权利要求4所述的萘基脲类化合物的制备方法,其特征在于,所述步骤(1)中
Figure 939677DEST_PATH_IMAGE013
Figure 541560DEST_PATH_IMAGE012
与NaH的摩尔比为1:1.2:2;
步骤(2)中
Figure 673595DEST_PATH_IMAGE014
与铁粉的摩尔比为1:5,乙醇和饱和氯化铵水溶液的体积比为1:1;
步骤(3)中,
Figure 310113DEST_PATH_IMAGE015
、R基异氰酸酯或R基异硫氰酸酯和N,N-二异丙基乙胺的摩尔比为1:1.2:2.0。
7.根据权利要求5所述的萘基脲类化合物的制备方法,其特征在于,步骤(a)中,
Figure 321931DEST_PATH_IMAGE017
Figure 660378DEST_PATH_IMAGE018
、三苯基膦、偶氮二甲酸二异丙酯的摩尔比为1:1.2:1.2:1.2;
步骤(b)中,
Figure 48634DEST_PATH_IMAGE019
和四氢铝锂的摩尔比为1:1。
8.权利要求 1 至 3 任一项所述的萘基脲类化合物及其生物学可接受的盐在制备抗肿瘤药物中的用途。
9.根据权利要求8所述的用途,其特征在于:所述的抗肿瘤药物是指治疗肝癌、乳腺癌、肺癌和白血病的药物。
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