CN108864024B - 一类灯盏乙素苷元氮芥类衍生物及其制备方法和用途 - Google Patents
一类灯盏乙素苷元氮芥类衍生物及其制备方法和用途 Download PDFInfo
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- CN108864024B CN108864024B CN201810906204.XA CN201810906204A CN108864024B CN 108864024 B CN108864024 B CN 108864024B CN 201810906204 A CN201810906204 A CN 201810906204A CN 108864024 B CN108864024 B CN 108864024B
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- nitrogen mustard
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- scutellarin
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- DJSISFGPUUYILV-ZFORQUDYSA-N scutellarin Chemical class O1[C@H](C(O)=O)[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1OC(C(=C1O)O)=CC2=C1C(=O)C=C(C=1C=CC(O)=CC=1)O2 DJSISFGPUUYILV-ZFORQUDYSA-N 0.000 title claims abstract description 46
- TWCMVXMQHSVIOJ-UHFFFAOYSA-N Aglycone of yadanzioside D Natural products COC(=O)C12OCC34C(CC5C(=CC(O)C(O)C5(C)C3C(O)C1O)C)OC(=O)C(OC(=O)C)C24 TWCMVXMQHSVIOJ-UHFFFAOYSA-N 0.000 title claims abstract description 26
- PLMKQQMDOMTZGG-UHFFFAOYSA-N Astrantiagenin E-methylester Natural products CC12CCC(O)C(C)(CO)C1CCC1(C)C2CC=C2C3CC(C)(C)CCC3(C(=O)OC)CCC21C PLMKQQMDOMTZGG-UHFFFAOYSA-N 0.000 title claims abstract description 26
- PFOARMALXZGCHY-UHFFFAOYSA-N homoegonol Natural products C1=C(OC)C(OC)=CC=C1C1=CC2=CC(CCCO)=CC(OC)=C2O1 PFOARMALXZGCHY-UHFFFAOYSA-N 0.000 title claims abstract description 26
- HAWPXGHAZFHHAD-UHFFFAOYSA-N mechlorethamine Chemical class ClCCN(C)CCCl HAWPXGHAZFHHAD-UHFFFAOYSA-N 0.000 title claims abstract description 18
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- QKSKPIVNLNLAAV-UHFFFAOYSA-N bis(2-chloroethyl) sulfide Chemical class ClCCSCCCl QKSKPIVNLNLAAV-UHFFFAOYSA-N 0.000 description 3
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/22—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4
- C07D311/26—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4 with aromatic rings attached in position 2 or 3
- C07D311/28—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4 with aromatic rings attached in position 2 or 3 with aromatic rings attached in position 2 only
- C07D311/30—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4 with aromatic rings attached in position 2 or 3 with aromatic rings attached in position 2 only not hydrogenated in the hetero ring, e.g. flavones
-
- 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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
- A61P35/02—Antineoplastic agents specific for leukemia
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
- C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
- C07D493/04—Ortho-condensed systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups
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- Medicinal Chemistry (AREA)
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- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Hematology (AREA)
- Oncology (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
本发明涉及天然药物及药物化学领域,涉及一类灯盏乙素苷元氮芥类衍生物及其制备方法和用途。具体涉及在4′‑OH拼合苯甲酸氮芥的灯盏乙素苷元衍生物及其制备方法和抗肿瘤活性。本发明所述的灯盏乙素苷元氮芥类衍生物及其药学上可接受的盐结构如通式I所示,其中,R、n如权利要求书和说明书中所述。
Description
技术领域
本发明涉及药物化学领域,涉及一类灯盏乙素苷元氮芥类衍生物及其制备方法和用途,具体涉及在4′-OH拼合苯甲酸氮芥的灯盏乙素苷元氮芥类衍生物及其制备方法和抗肿瘤活性。
背景技术
肿瘤是威胁人类健康的重大疾病之一,然而,临床应用的抗肿瘤药物在展现出较好活性的同时,副作用也越来越多,严重影响肿瘤疾病的治疗效果。因此,寻找开发高效低毒的抗肿瘤药物变得尤为重要。天然产物是药物发现的主要来源,在已上市的抗肿瘤药物中,很多成功的药物都直接或间接来源于天然产物。因此,从天然产物中,寻找并获得活性更好、毒性更低、性质更稳定的抗肿瘤候选化合物变得至关重要。
灯盏乙素(scutellarin)是从菊科植物短葶飞蓬Erigeron breviscapus(Vant.)Hand-Mazz的干燥全草中提取分离得到的一种黄酮类有效成分,为一种淡黄色粉末。近年来,关于灯盏乙素在抗肿瘤方面的研究越来越广泛和深入,相关研究表明灯盏乙素对多种肿瘤细胞株都有很强的抑制作用。包括乳腺癌细胞、人白血病细胞、肝癌细胞、结肠癌细胞、人舌癌细胞等。另外,深入的研究表明灯盏乙素可以通过多种途径发挥抗肿瘤作用,主要包括:诱导肿瘤细胞凋亡;抑制肿瘤细胞的转移与侵袭;逆转肿瘤细胞的耐药性;增加肿瘤细胞对药物的敏感性等。灯盏乙素做为一种常见的黄酮类化合物,来源广泛且在许多日常食用的植物当中均有存在,这为研发高效低毒的抗肿瘤药物奠定了良好的基础。灯盏乙素苷元是灯盏乙素在体内的主要代谢产物,是灯盏乙素发挥活性的主要药效物质,其同样具有显著的抗肿瘤活性。
氮芥类药物是临床肿瘤治疗中使用最早、最广泛的一类抗肿瘤药,这类药物的主要作用机制是在体内能够形成缺电子活泼中间体或其它具有活泼亲电性基团的化合物,进而与含有富电子基团(如氨基、巯基、羟基、羧基和磷酸基等)的生物大分子发生共价结合,从而使其丧失活性。然而,氮芥类药物对正常与肿瘤细胞无选择性,毒副作用较大。为了进一步提升氮芥类药物的活性、降低其毒性,将载体换成天然产物。通过拼合原理,将两种药物的结构拼合在一个分子内,以期增加药物在肿瘤部位的浓度,提高疗效,减少不必要的全身性毒性。
本发明以灯盏乙素为先导化合物,利用拼合原理,将苯甲酸氮芥通过连接基团与灯盏乙素苷元拼合,设计并合成了通式为I的灯盏乙素苷元氮芥类衍生物。
发明内容
本发明要解决的技术问题是寻找抗肿瘤活性好、选择性佳的,并进一步提供一种治疗肿瘤及其它疾病或病症的药物组合物。
为解决上述技术问题,本发明提供如下技术方案:
通式I为所示灯盏乙素苷元氮芥类衍生物:
其中,
R为氢或含有1-12个碳原子的烷基;n为1-12的整数。
优选地,
R为氢或含有1-6个碳原子的烷基;n为1-12的整数。
更优选地,
R为氢、甲基、乙基、正丙基、异丙基、正丁基、异丁基;n为1-8的整数。
更进一步地,
R为氢或甲基,n为3-5。
本发明优选如下化合物:
本发明通式I的衍生物可用下列方法制备得到:
灯盏乙素(1)在N2保护条件下经浓HCl水解,得到灯盏乙素苷元(5),灯盏乙素苷元(5)在二氯二苯甲烷/二苯醚的条件下上二苯基保护基得到中间体(6)。
将对氨基苯甲酸乙酯(2)在环氧乙烷和醋酸的反应条件下得中间体(3)。中间体(3)在三氯氧磷和盐酸的条件下得到苯甲酸氮芥(4)。
中间体(6)在K2CO3的条件下,与相应的溴代烷反应得到中间体(7a-c),然后与苯甲酸氮芥(4)反应得到中间体(8a-c),经醋酸/水脱掉保护基,得到目标化合物(9a-c),再经R2SO4烷基化,得到目标化合物(10a-c)。
本发明的灯盏乙素苷元氮芥类衍生物及其药学上可接受的盐可以与药学上可接受的载体制备成药物组合物。
本发明所述的灯盏乙素苷元氮芥类衍生物或其药物组合物具有明显的抗肿瘤活性,可以用于制备抗肿瘤药物。所述的肿瘤可以为白血病、乳腺癌、肝癌等。
具体实施方式
实施例1
将灯盏乙素1(10g,21.6mmol)加入到120mL无水乙醇,120mL浓盐酸和10mL H2O的混合液中。在N2保护的条件下,回流36h。室温冷却后,将反应液倾入等体积的水中,抽滤,水洗至中性,烘干,粗品经硅胶柱色谱分离(石油醚:乙酸乙酯1:1),得黄色固体灯盏乙素苷元5 1.05g,产率17%。1H NMR(DMSO-d6,400MHz)δ(ppm):12.80(s,1H,5-OH),10.47(s,1H,7-OH),10.32(s,1H,4′-OH),8.75(s,1H,6-OH),7.91(d,2H,J=8.9Hz,H-2′,6′),6.92(d,2H,J=8.9Hz,H-3′,5′),6.75(s,1H,H-8),6.57(s,1H,H-3)。
实施例2
将灯盏乙素苷元5(1g,3.5mmol),溶于50mL的二苯醚中,加入二氯二苯甲烷(1009μL,5.25mmol)。在N2保护,175℃的条件下,反应1.5h。室温冷却后,将反应液倾入500mL的石油醚中,抽滤,烘干,粗品经硅胶柱色谱分离(石油醚:乙酸乙酯2:1),得黄色固体6 937mg,产率59%。1H NMR(DMSO-d6,400MHz)δ(ppm):13.17(s,1H,5-OH),10.41(s,1H,4′-OH),7.93(d,2H,J=8.7Hz,H-2′,6′),7.57-7.46(m,10H,Ar-H),7.06(s,1H,H-8),6.93(d,2H,J=8.7Hz,H-3′,5′),6.87(s,1H,H-3)。
实施例3
将中间体6(450mg,1mmol),溶于30mL的丙酮中,加入K2CO3(417mg,3mmol)和1,3-二溴丙烷(420μL,3mmol)回流反应8h。室温冷却后,抽滤,滤液浓缩,经硅胶柱(石油醚:乙酸乙酯6:1),分离,得到浅黄色粉末7a 473mg,产率83%。将7a(285mg,0.5mmol),溶于5mL的DMF中,加入K2CO3(139mg,1mmol)和苯甲酸氮芥4(152mg,0.5mmol),于室温反应24h。将反应液倾入30mL的H2O中,乙酸乙酯萃取(3×20mL),饱和食盐水溶液洗涤,无水硫酸钠干燥,过滤,滤液浓缩,经硅胶柱色谱分离(石油醚:乙酸乙酯4:1),得到浅黄色粉末8a 323mg,产率86%。将8a加入到10mL的醋酸水溶液中,在170℃的条件下回流反应1h后,冷却至室温,将反应液倾入30mL的H2O中,乙酸乙酯萃取(3×20mL),饱和食盐水溶液洗涤,无水硫酸钠干燥,过滤,滤液浓缩,经硅胶柱色谱分离(二氯甲烷:甲醇50:1),得到目标化合物9a 85mg,产率41%。1HNMR(DMSO-d6,400MHz)δ(ppm):12.35(s,1H,5-OH),10.48(s,1H,7-OH),8.81(s,1H,6-OH),8.12(d,2H,J=8.9Hz,H-2′,6′),7.80(d,2H,J=8.9Hz,Ar-H),7.14(d,2H,J=8.9Hz,Ar-H),6.83(s,1H,H-8),6.80(d,2H,J=8.9Hz,H-3′,5′),6.27(s,1H,H-3),4.37(t,2H,J=6.2Hz,-CH2-),4.24(t,2H,J=6.2Hz,-CH2-),3.76-3.81(m,8H,-CH2-),2.18(m,2H,-CH2-);HRMS(ESI)m/z calcd for C29H27Cl2NO8[M+H]+588.1147,found 588.1164。
实施例4
参照实施例3的合成方法,得9b黄色粉末,产率25%。1H NMR(DMSO-d6,400MHz)δ(ppm):12.76(s,1H,5-OH),10.38(s,1H,7-OH),8.82(s,1H,6-OH),8.01(d,2H,J=8.8Hz,H-2′,6′),7.77(d,2H,J=9.0Hz,Ar-H),7.09(d,2H,J=9.0Hz,Ar-H),6.82(s,1H,H-8),6.79(d,2H,J=8.8Hz,H-3′,5′),6.60(s,1H,H-3),4.27(s,2H,-CH2-),4.15(s,2H,-CH2-),3.74-3.79(m,8H,-CH2-),1.87(s,4H,-CH2-);HRMS(ESI)m/z calcd for C30H29Cl2NO8[M+H]+602.1304,found 602.1339。
实施例5
参照实施例3的合成方法,得9c黄色粉末,产率33%。1H NMR(DMSO-d6,400MHz)δ(ppm):12.76(s,1H,5-OH),10.34(s,1H,7-OH),8.91(s,1H,6-OH),8.00(d,2H,J=8.8Hz,H-2′,6′),7.78(d,2H,J=9.0Hz,Ar-H),7.09(d,2H,J=9.0Hz,Ar-H),6.83(d,2H,J=8.8Hz,H-3′,5′,H-8),6.81(s,1H,H-8),6.59(s,1H,H-3),4.23(t,2H,J=6.1Hz,-CH2-),4.09(t,2H,J=6.3Hz,-CH2-),3.75-3.80(m,8H,-CH2-),1.83-1.74(m,4H,-CH2-),1.56(m,2H,-CH2-);HRMS(ESI)m/z calcd for C31H31Cl2NO8[M+H]+616.1460,found 616.1496。
实施例6
将9a(58mg,0.1mmol),溶于20mL的丙酮中,加入K2CO3(42mg,0.3mmol)和Me2SO4(29μL,0.3mmol)于回流反应8h。冷却至室温后,抽滤,滤液浓缩,经硅胶柱色谱分离(石油醚:乙酸乙酯2:1),得到浅黄色粉末10a 37mg,产率60%。1H NMR(DMSO-d6,400MHz)δ(ppm):12.73(s,1H,5-OH),8.02(d,2H,J=8.9Hz,H-2′,6′),7.80(d,2H,J=8.9Hz,Ar-H),7.16(d,2H,J=8.9Hz,Ar-H),6.91(s,1H,H-8),6.82(d,2H,J=8.9Hz,H-3′,5′),6.59(s,1H,H-3),4.37(t,2H,J=6.0Hz,-CH2-),4.24(t,2H,J=6.2Hz,-CH2-),3.91(s,3H,-OCH3),3.83(s,3H,-OCH3),3.73-3.80(m,8H,-CH2-),2.18(m,2H,-CH2-);HRMS(ESI)m/z calcd for C31H31Cl2NO8[M+H]+616.1460,found 616.1452。
实施例7
参照实施例6的合成方法,得10b黄色粉末,产率43%。1H NMR(DMSO-d6,400MHz)δ(ppm):12.74(s,1H,5-OH),8.02(d,2H,J=8.6Hz,H-2′,6′),7.77(d,2H,J=8.9Hz,Ar-H),7.14(d,2H,J=8.9Hz,Ar-H),6.91(s,1H,H-8),6.80(d,2H,J=9.0Hz,H-3′,5′),6.58(s,1H,H-3),4.27(s,2H,-CH2-),4.15(s,2H,-CH2-),3.91(s,3H,-OCH3),3.83(s,3H,-OCH3),3.74-3.78(m,8H,-CH2-),1.87(m,4H,-CH2-);HRMS(ESI)m/z calcd for C32H33Cl2NO8[M+H]+630.1617,found 630.1673。
实施例8
参照实施例6的合成方法,得10c黄色粉末,产率16.9%。1H NMR(DMSO-d6,400MHz)δ(ppm):12.75(s,1H,5-OH),8.05(d,2H,J=8.9Hz,H-2′,6′),7.78(d,2H,J=8.9Hz,Ar-H),7.14(d,2H,J=8.9Hz,Ar-H),6.92(s,1H,H-8),6.81(d,2H,J=8.9Hz,H-3′,5′),6.59(s,1H,H-3),4.24(s,2H,-CH2-),4.11(s,2H,-CH2-),3.92(s,3H,-OCH3),3.83(s,3H,-OCH3),3.75-3.80(m,8H,-CH2-),1.72-1.85(m,4H,-CH2-),1.56(m,2H,-CH2-);HRMS(ESI)m/zcalcd for C33H35Cl2NO8[M+H]+644.1773,found 644.1635。
化合物的药理实验结果如下:
实验设备与试剂
仪器 超净工作台(苏净集团安泰公司)
恒温培养箱(Thermo electron Corporation)
酶标仪(BIO-RAD公司)
倒置生物显微镜(重庆光学仪器厂)
试剂 细胞培养基RPMI-1640、DMEM(高糖)(GIBCO公司)
胎牛血清(杭州四季清有限公司)
四甲基偶氮唑蓝(MTT)(Sigma公司产品)
DMSO(Sigma公司)
细胞株 人早幼粒急性白血病细胞HL-60、人乳腺癌细胞株
MCF-7、人肝癌细胞株Bel-7402和HepG-2、人正常肝
细胞株L-O2、人外周血单核细胞株PBMC
实验方法
细胞抑制活性实验方法
细胞在37℃、5%CO2饱和湿度的培养箱中常规培养。培养液为含10%热灭活胎牛血清,青霉素100U/mL和链霉素100U/mL的RPMI1640细胞培养基。48h更换培养液,细胞贴壁后,用0.25%胰蛋白酶消化传代。实验用细胞均处于对数生长期,台盼蓝拒染法表明细胞活力>95%。
取处于对数生长期状态良好的细胞一瓶,加入消化液(0.125%胰蛋白酶+0.01%EDTA)消化,计数2-4×104cell/mL,制成细胞悬液接种于96孔板上,100μL/孔,置恒温CO2培养箱中培养24小时。换液,加入受试药物,100μL/孔,培养72小时。将MTT加入96孔板中,50μL/孔,培养箱中孵育4小时。吸去上清液,加DMSO,200μL/孔,平板摇床上震荡10分钟。受试物考察7个浓度(50μM,25μM,12.5μM,6.25μM,3.13μM,1.56μM,0.78μM),用酶联免疫监测仪在波长为570nm处测定每孔的吸光度,分别计算各浓度下的细胞抑制率。抑制率计算方法:
药敏孔相对OD值=药敏孔绝对OD值﹣空白对照孔绝对OD值
实验结果
表1实施例3-8对3种人类癌细胞株和2种人正常细胞株抗增殖活性的IC50值(μM)
药理结果可知,本发明的灯盏乙素苷元氮芥类衍生物对多种肿瘤细胞株具有抗增殖活性和肿瘤细胞特异性,并且对正常细胞株的毒性较低,具有较好的肿瘤细胞和正常细胞间选择性,可以用于进一步制备抗肿瘤药物。
Claims (11)
2.权利要求1所述的通式I所示的灯盏乙素苷元氮芥类衍生物及其药学上可接受的盐:
其中,R为氢或含有1-6个碳原子的烷基。
3.权利要求1所述的通式I所示的灯盏乙素苷元氮芥类衍生物及其药学上可接受的盐:
其中,R为氢、甲基、乙基、正丙基、异丙基、正丁基、异丁基。
4.权利要求1-3任何一项所述的通式I所示的灯盏乙素苷元氮芥类衍生物及其药学上可接受的盐:
其中,n为1-8的整数。
5.权利要求1-3任何一项所述的通式I所示的灯盏乙素苷元氮芥类衍生物及其药学上可接受的盐:
其中,n为3-5。
7.一种药物组合物,其中含有治疗有效量的权利要求1-6任何一项所述的通式I所示的灯盏乙素苷元氮芥类衍生物及其药学上可接受的盐和药学上可接受的载体。
8.如权利要求1所述的通式I所示的灯盏乙素苷元氮芥类衍生物及其药学上可接受的盐的制备方法,其特征在于:
灯盏乙素(1)在N2保护条件下经浓HCl水解,得到灯盏乙素苷元(5),灯盏乙素苷元(5)在二氯二苯甲烷/二苯醚的条件下上二苯基保护基得到中间体(6);
将对氨基苯甲酸乙酯(2)在环氧乙烷和醋酸反应的条件下得中间体(3),中间体(3)在三氯氧磷和盐酸的条件下得到苯甲酸氮芥(4);
中间体(6)在K2CO3的条件下,与相应的溴代烷反应得到中间体(7),然后与苯甲酸氮芥(4)反应得到中间体(8),经醋酸/水脱掉保护基,得到化合物(9),再经R2SO4烷基化,得到化合物(10);
R、n如权利要求1所述。
9.权利要求1-6任何一项所述的通式I所示的灯盏乙素苷元氮芥类衍生物及其药学上可接受的盐在制备治疗肿瘤疾病的药物中的应用。
10.权利要求7所述的药物组合物在制备治疗肿瘤疾病的药物中的应用。
11.如权利要求9或10所述的应用,其特征在于,所述的肿瘤为白血病,乳腺癌或肝癌。
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