WO2023221825A1 - 一种倍半萜衍生物、其药物组合物及其制备方法和用途 - Google Patents

一种倍半萜衍生物、其药物组合物及其制备方法和用途 Download PDF

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WO2023221825A1
WO2023221825A1 PCT/CN2023/093118 CN2023093118W WO2023221825A1 WO 2023221825 A1 WO2023221825 A1 WO 2023221825A1 CN 2023093118 W CN2023093118 W CN 2023093118W WO 2023221825 A1 WO2023221825 A1 WO 2023221825A1
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acid
pharmaceutically acceptable
sesquiterpene derivative
acceptable salt
compound
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PCT/CN2023/093118
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French (fr)
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杨诚
杨光
周红刚
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天津济坤医药科技有限公司
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D493/00Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
    • C07D493/02Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
    • C07D493/10Spiro-condensed systems
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00Antineoplastic agents
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/55Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

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  • the present invention relates to the field of medicinal chemistry, and in particular to a sesquiterpene derivative, its pharmaceutical composition, its preparation method and use.
  • malignant tumors have become the main cause of human death.
  • the main treatments for malignant tumors include surgery, radiotherapy and chemotherapy.
  • most malignant tumors still lack effective treatments, and the clinical treatment effect of malignant tumors is not ideal.
  • traditional anti-tumor drugs have shortcomings such as high toxic and side effects, which hinder their further clinical application.
  • the rapid development of small molecule drugs has provided new options for the treatment of malignant tumors, which has gradually become a research and development hotspot in recent years.
  • Natural sesquiterpenoids have anti-tumor effects; however, these compounds commonly have conjugated double bonds. This structure causes the compounds to have some shortcomings, such as poor water solubility, poor stability, and low oral bioavailability. Therefore, such compounds can be modified by synthesizing prodrugs to form some amino structures, and then through salt formation, prodrug molecules with good water solubility, stable structure, and high oral bioavailability can be obtained. The most common way to synthesize prodrugs of such compounds is to modify these compounds with dimethylamine and then form a salt.
  • the object of the present invention is to provide a derivative of a sesquiterpenoid compound or a pharmaceutically acceptable salt thereof, which is structurally stable, has a longer half-life, a slower plasma clearance rate, and is suitable for long-acting administration, including The pharmaceutical composition, its preparation method and its use in preparing drugs for treating tumors.
  • the present invention provides the following technical solutions:
  • the present invention provides a sesquiterpene derivative or a pharmaceutically acceptable salt thereof, the sesquiterpene derivative having a structure shown in formula (I):
  • R is a 3-9 membered saturated heterocyclic amino group
  • the heterocyclic amino group contains at least one N atom and optionally an O atom as a ring atom
  • the heterocyclic amino group is connected to the rest of the molecule through its amino part.
  • the R is a 5-6 membered saturated heterocyclic amino group, and the heterocyclic amino group contains 1-2 N atoms and 0-1 O atoms as ring atoms, and is connected to the rest of the molecule through its amino portion;
  • the heterocyclic amino group is selected from the group consisting of: morpholinyl, piperidinyl, tetrahydropyrrolyl, N-substituted piperazinyl, wherein the N-substituted substituent is selected from the following: H, C 1 -C 3 alkyl.
  • sesquiterpene derivatives of the present invention are compounds selected from the following:
  • the pharmaceutically acceptable salt of the sesquiterpene derivative is a salt formed by the sesquiterpene derivative and an inorganic acid or organic acid;
  • the inorganic acid is selected from the group consisting of: hydrofluoric acid, hydrochloric acid, hydrobromic acid, hydroiodic acid, sulfuric acid, nitric acid, phosphoric acid, carbonic acid;
  • the organic acid is selected from the group consisting of: citric acid, maleic acid, D-malic acid, L-malic acid, DL-malic acid, D-lactic acid, L-lactic acid, DL-lactic acid, oxalic acid, Methanesulfonic acid, p-toluenesulfonic acid, tartaric acid, malonic acid, succinic acid, fumaric acid, benzoic acid or substituted benzoic acid.
  • the pharmaceutically acceptable salt of the sesquiterpene derivative is the fumarate salt of the sesquiterpene derivative.
  • the pharmaceutically acceptable salt of the sesquiterpene derivative is selected from the following:
  • the present invention provides a method for preparing the sesquiterpene derivative or a pharmaceutically acceptable salt thereof as described in the first aspect, and its synthesis route is as follows:
  • the Sol. is a solvent selected from dichloromethane, chloroform, tetrahydrofuran, methanol, ethanol, toluene, acetonitrile, ethyl acetate, N,N'-dimethylformamide, dimethyl sulfoxide, one in the water Kind or variety.
  • the present invention provides a pharmaceutical composition, which includes: the sesquiterpene derivative or a pharmaceutically acceptable salt thereof as described in the first aspect; and a pharmaceutically acceptable carrier and/or excipient. form agent.
  • the pharmaceutical composition is an oral dosage form or a parenteral dosage form
  • the oral dosage form is selected from oral liquid, syrup, tablet, capsule, chewable tablet, pill or granule;
  • parenteral dosage form is selected from the group consisting of intravenous, intramuscular, intradermal, subcutaneous, and spinal injection.
  • the present invention provides a sesquiterpene derivative or a pharmaceutically acceptable salt thereof as described in the first aspect above or a pharmaceutical composition as described in the third aspect above when prepared for the treatment of tumors. uses in medicines.
  • the tumor is selected from the group consisting of melanoma, lung cancer, pancreatic cancer, liver cancer, colorectal cancer, gastric cancer, and glioma.
  • the sesquiterpene derivative or its pharmaceutically acceptable salt of the present invention has a stable structure, a longer half-life, a slower plasma clearance rate, shows a long-acting and stable drug release time, and exhibits excellent It has anti-tumor activity and is a potential candidate for long-acting anti-tumor drugs, with potential clinical application value and broad clinical application prospects.
  • Figure 1 shows the in vitro sustained release effect of the sesquiterpene derivatives of the present invention as measured by a prodrug in vitro sustained release screening model designed to simulate physiological pH, as recorded in Example 9;
  • Figure 2 shows the in vitro sustained release effect of the sesquiterpene derivative of the present invention, as recorded in Example 10, as detected by a sustained release study method using a mouse plasma model.
  • Example 9 Detection of the sustained release effect of the compound of the present invention through an in vitro sustained release model
  • a prodrug in vitro sustained release model designed to simulate physiological pH was used to detect the sustained release effect of the compound of the present invention prepared in the above example and the control compound prepared in the comparative example.
  • the specific experimental procedures are as follows:
  • the sesquiterpene derivatives of the present invention all show obvious sustained release effects, that is, their sustained release duration is longer; in particular, the sustained release of compound 6 It has the longest duration and has not been completely released after 12 hours.
  • Tip The sesquiterpene derivative of the present invention has a significantly longer sustained-release duration and has the potential to be used as a long-acting sustained-release drug.
  • Example 10 Testing the sustained release effect of the compound of the present invention on mouse plasma model
  • sesquiterpene derivative i.e., prodrug
  • a concentration of 8 mg/mL to 900 ⁇ L of mouse blank plasma
  • the compound 6 of the present invention can sustain and slowly release the original drug (CP0105) for a long time in mouse plasma, and has a significantly better sustained release effect.
  • mice used in this experiment were male CD-1 mice (6-8 weeks old), purchased from Beijing Vital River Laboratory (Beijing, China). 12 mice were evenly divided into four groups, namely:
  • Compound 6 intravenous injection group Compound 6 oral administration group, Compound 9 intravenous injection group, and Compound 9 oral administration group.
  • Table 1 The experimental results of oral administration are shown in Table 1 below.
  • the compound 6 of the present invention has a significantly better sustained-release effect in mice.
  • the specific performance is as follows: the maximum plasma concentration of the oral drug is 9650ng/mL. Compared with the control compound 9 is higher; the half-life is 6.2h, which is longer than the control compound 9; the drug plasma maintenance time is 32h, which is longer than the control compound 9; the oral bioavailability is 92%, which is higher than the control compound 9 .
  • Example 12 Study on the anti-tumor efficacy of the compounds of the present invention
  • Collect tumor cells B16F10, LLC, PAN02, H22, CT26, MFC and GL261 that are in good growth status wash them twice with 1 ⁇ PBS respectively, count the total number of cells with a cell counter, and dilute the cell solution with 1 ⁇ PBS to 1 ⁇ 10 Cell suspension at 7 cells/mL.
  • mice used in this experiment were purchased from Beijing Vital River Laboratory (Beijing, China).
  • the different types of tumor cells mentioned above were inoculated into different mouse types to generate corresponding tumor-bearing mice, as follows:
  • B16F10 uses 6-8 weeks old C57BL/6 female mice
  • LLC uses 6-8 weeks old Balb/c female mice
  • PAN02 uses 6-8 weeks old C57BL/6J female mice
  • H22 uses 6-8 weeks old C57BL /6 female mice
  • CT26 uses 6-8 week old Balb/c female mice
  • MFC uses 6-8 week old BALB/c-nu/nu female mice
  • GL261 uses 6-8 week old C57BL/6 female mice. mouse.
  • mice Inoculate the above cell suspension into the axilla of the forelimb of the mouse at an inoculation volume of 1 ⁇ 10 6 tumor cells per mouse (i.e., 100 ⁇ L cell suspension/mouse); when the average tumor volume exceeds 100cm 3 ( (The difference in tumor volume between individuals does not exceed 10%), the mice were randomly divided into several groups, with 8 mice in each group. Compounds 5, 6, 7, 8, and 9 were orally gavaged every two days at a dosage of 100 mg/kg body weight. Administration was given once until the end of the experiment.
  • mice were euthanized, the tumor tissues were collected, and their volume and weight were tested to calculate the tumor inhibition rate.
  • Tumor inhibition rate (1-tumor weight of treatment group/tumor weight of control group)*100%

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  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Medicinal Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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Abstract

本发明提供了一种倍半萜衍生物、其药物组合物及其制备方法和用途。本发明涉及一种式(I)所示的倍半萜类衍生物或其药学上可接受的盐,包含其药物组合物,以及其制备方法和用途。本发明的倍半萜类衍生物或其药学上可接受的盐具有稳定的结构、较长的半衰期、较慢的血浆清除率,显示出长效、稳定的药物释放时间,表现出了优异的抗肿瘤活性,可作为长效抗肿瘤药物的候选,具有潜在的临床应用价值和广阔的临床应用前景。

Description

一种倍半萜衍生物、其药物组合物及其制备方法和用途
本申请要求于2022年05月16日提交中国专利局、申请号为CN202210527646.X、发明名称为“一种倍半萜衍生物、其药物组合物及其制备方法和用途”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明涉及药物化学领域,具体涉及一种倍半萜衍生物、其药物组合物以及其制备方法和用途。
背景技术
在过去的几十年里,全世界恶性肿瘤的发病率和死亡率逐年递增,恶性肿瘤已经成为人类死亡的主要因素。目前,恶性肿瘤的治疗手段主要有:手术、放射治疗以及化学治疗。然而,目前大部分的恶性肿瘤仍缺乏有效的治疗手段,临床上对于恶性肿瘤的治疗效果并不理想,并且,传统抗肿瘤药物由于毒副作用大等缺点阻碍了其在临床上的进一步应用。同时,小分子药物的快速发展为恶性肿瘤的治疗提供了新的选择,其已逐渐成为近年来的研发热点。
天然倍半萜类化合物具有抗肿瘤功效;然而,这类化合物普遍存在共轭双键,该结构使得化合物具有一些缺点,比如水溶性差、稳定性差、口服生物利用度低等。因此,可以通过采用合成前药的方式对这类化合物进行修饰,形成一些氨基结构,再通过成盐的方式,即可获得水溶性好、结构稳定、口服生物利用度高的前药分子。最常见的合成此类化合物的前药的方式是:用二甲胺对这类化合物进行修饰,然后成盐。然而,二甲胺及二乙胺等烷烃二胺的类似物修饰,所得前药在血浆中释放太快、半衰期短,很难维持长时间的药物浓度。因此,需要开发一种结构稳定且具有更长半衰期、更慢的血浆清除率以适应长效给药需求的倍半萜类化合物的衍生物。
公开于该背景技术部分的信息仅仅旨在增加对本发明的总体背景的理解,而不应当被视为承认或以任何形式暗示该信息构成已为本领域一般技术人员所公知的现有技术。
发明内容
发明目的
本发明的目的在于提供一种结构稳定且具有较长的半衰期、较慢的血浆清除率,适于长效给药的倍半萜类化合物的衍生物或其药学上可接受的盐、包含其的药物组合物、其制备方法以及其在制备用于治疗肿瘤的药物中的用途。
解决方案
为实现本发明目的,本发明提供了以下技术方案:
第一方面,本发明提供了一种倍半萜类衍生物或其药学上可接受的盐,所述倍半萜类衍生物具有如式(I)所示的结构:
其中,R为3-9元饱和杂环氨基,所述杂环氨基含有至少一个N原子和任选地O原子作为环原子,并且,所述杂环氨基通过其氨基部分与分子其余部分连接。
在一个优选的实施方案中,式(I)中,所述R为5-6元饱和杂环氨基,所述杂环氨基含有1-2个N原子和0-1个O原子作为环原子,并通过其氨基部分与分子其余部分连接;
任选地,所述杂环氨基选自以下组成的组:吗啉基、哌啶基、四氢吡咯基、N-取代哌嗪基,其中,N-取代的取代基选自以下:H、C1-C3烷基。
在优选的具体实施方案中,本发明所述倍半萜类衍生物为选自以下的化合物:
在优选的实施方案中,所述倍半萜类衍生物的药学上可接受的盐为所述倍半萜类衍生物与无机酸或有机酸所形成的盐;
优选地,所述无机酸选自由以下组成的组:氢氟酸、盐酸、氢溴酸、氢碘酸、硫酸、硝酸、磷酸、碳酸;
优选地,所述有机酸选自由以下组成的组:柠檬酸、马来酸、D-苹果酸、L-苹果酸、DL-苹果酸、D-乳酸、L-乳酸、DL-乳酸、草酸、甲磺酸、对甲苯磺酸、酒石酸、丙二酸、丁二酸、富马酸、苯甲酸或取代苯甲酸。
进一步优选地,所述倍半萜类衍生物的药学上可接受的盐为所述倍半萜类衍生物的富马酸盐。
在优选的具体实施方案中,所述倍半萜类衍生物的药学上可接受的盐选自以下:
第二方面,本发明提供了一种如上述第一方面所述倍半萜类衍生物或其药学上可接受的盐的制备方法,其合成路线如下:
其中,所述Sol.为溶剂,选自二氯甲烷、三氯甲烷、四氢呋喃、甲醇、乙醇、甲苯、乙腈、乙酸乙酯、N,N'-二甲基甲酰胺、二甲基亚砜、水中的一 种或多种。
第三方面,本发明提供了一种药物组合物,其包括:如上述第一方面所述倍半萜类衍生物或其药学上可接受的盐;以及药学上可接受的载体和/或赋形剂。
优选地,所述药物组合物为口服剂型或肠胃外给药剂型;
进一步优选地,所述口服剂型选自口服液、糖浆剂、片剂、胶囊剂、咀嚼片、丸剂或颗粒剂;
进一步优选地,所述肠胃外给药剂型选自静脉、肌内、皮内、皮下、脊椎腔注射剂。
第四方面,本发明提供了一种如上述第一方面所述的倍半萜类衍生物或其药学上可接受的盐或者如上述第三方面所述的药物组合物在制备用于治疗肿瘤的药物中的用途。
在具体实施方案中,所述肿瘤选自由以下组成的组:黑色素瘤、肺癌、胰腺癌、肝癌、结直肠癌、胃癌和脑胶质瘤。
有益效果
本发明的倍半萜类衍生物或其药学上可接受的盐具有稳定的结构、较长的半衰期、较慢的血浆清除率,显示出长效、稳定的药物释放时间,表现出了优异的抗肿瘤活性,为长效抗肿瘤药物的潜在候选,具有潜在的临床应用价值和广阔的临床应用前景。
附图说明
一个或多个实施例通过与之对应的附图中的图片进行示例性说明,这些示例性说明并不构成对实施例的限定。在这里,专用的词“示例性”意为“用作例子、实施例或说明性”。在这里,作为“示例性”所说明的任何实施例不必解释为优于或好于其它实施例。
图1显示了通过模拟生理pH设计的前药体外缓释筛选模型所检测的、本发明倍半萜类衍生物的体外缓释效果,如实施例9中记载的;
图2显示了通过采用小鼠血浆模型的缓释研究方法所检测的、本发明倍半萜类衍生物的体外缓释效果,如实施例10中记载的。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚,下面将对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发 明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
另外,为了更好的说明本发明,在下文的具体实施方式中给出了众多的具体细节。本领域技术人员应当理解,没有某些具体细节,本发明同样可以实施。在一些实施例中,对于本领域技术人员熟知的原料、元件、方法、手段等未作详细描述,以便于凸显本发明的主旨。
除非另有其它明确表示,否则在整个说明书和权利要求书中,术语“包括”或其变换如“包含”或“包括有”等等将被理解为包括所陈述的元件或组成部分,而并未排除其它元件或其它组成部分。
以下实施例中所使用的实验方法如无特殊说明,均为常规方法。
以下实施例中所用的材料或试剂等,如无特殊说明,均可通过商购获得。
实施例1:化合物1的制备
化合物1的结构如下:
其制备过程如下:
0℃下,将二氧化硒(2.86g,25.8mmol)溶解在二氯甲烷(250mL)中,加入过氧化叔丁醇(15.5mL),搅拌反应30分钟后,将异土木香内酯(30g,0.129mol)的二氯甲烷(250mL)溶液缓慢地加入到上述体系中,室温下搅拌8小时,然后用饱和硫代硫酸钠水溶液(500mL)淬灭反应,分液后,水相用二氯甲烷萃取(300mL×3),将有机相合并、干燥、浓缩,用石油醚/乙酸乙酯混合溶剂重结晶,得到中间体1(白色固体,19.5g,产率61%),其随后直接用于下一步。
0℃下,将化合物中间体1(19.5g,78.5mmol)溶解在二氯甲烷(100mL)中,缓慢将间氯过氧苯甲酸(16.3g,94.2mmol)的二氯甲烷(300mL)溶液滴加到上述体系中,室温下反应2小时,然后用饱和硫代硫酸钠(300mL)淬灭反应,水相用乙酸乙酯萃取(3×200mL),有机相用NaHCO3饱和溶液(100mL)洗涤一次,再用无水Na2SO4干燥,过滤除去固体,将母液浓缩,得到化合物CP0105 粗品;所得化合物CP0105粗品用乙酸乙酯/石油醚重结晶,得到化合物CP0105(16.8g,产率81%),其结构式如下所示:
将化合物CP0105(1.00g,3.78mmol)溶解在四氢呋喃(16mL)中,向体系中加入吗啉(1.65g,18.9mmol),25℃下将反应体系搅拌4小时,反应结束后,减压浓缩除去四氢呋喃,得到化合物1的粗产物;然后通过硅胶快速柱色谱(二氯甲烷:甲醇=20:1)纯化粗产物,得到化合物1(白色固体,998mg,产率75%)。
对化合物1进行检测,其NMR数据如下:
1H NMR(400MHz,DMSO)δ4.48(d,J=4.2Hz,1H),3.56(t,J=4.7Hz,4H),3.16(dd,J=10.7,4.7Hz,2H),2.75(d,J=4.5Hz,1H),2.47–2.35(m,7H),2.28(dt,J=10.7,4.5Hz,2H),2.09(dd,J=13.0,2.4Hz,1H),1.96(d,J=15.3Hz,1H),1.80–1.65(m,1H),1.63–1.42(m,3H),1.35–1.24(m,1H),1.24–1.13(m,1H),0.83(s,3H),0.66(q,J=12.9Hz,1H).13C NMR(100MHz,DMSO)δ177.42,77.46,71.09,66.11,60.87,53.27,53.17,47.99,43.80,41.32,38.43,36.78,34.71,34.25,27.66,17.92,15.52.HRMS(ESI):m/z calcd for C19H29NO5Na+[M+Na]+374.1938,found 374.1942.
实施例2:化合物1的富马酸盐——化合物5的制备
化合物5的结构如下:
将实施例1所制备的化合物1(998mg,2.84mmol)溶解在四氢呋喃中(20mL)中,搅拌均匀后,向体系中加入富马酸(313mg,2.70mmol),室温下 搅拌反应3小时,反应结束后,减压浓缩除去四氢呋喃,然后向反应体系中加入乙酸乙酯(100mL),得到悬浊液,抽滤后得到化合物5(白色固体,815mg,产率61%)。
对化合物5进行检测,其NMR数据如下:
1H NMR(400MHz,DMSO)δ6.62(s,2H),4.48(d,J=4.2Hz,1H),3.56(t,J=4.7Hz,4H),3.16(dd,J=10.7,4.7Hz,2H),2.75(d,J=4.5Hz,1H),2.47–2.35(m,7H),2.28(dt,J=10.7,4.5Hz,2H),2.09(dd,J=13.0,2.4Hz,1H),1.96(d,J=15.3Hz,1H),1.80–1.65(m,1H),1.63–1.42(m,3H),1.35–1.24(m,1H),1.24–1.13(m,1H),0.83(s,3H),0.66(q,J=12.9Hz,1H).13C NMR(100MHz,DMSO)δ177.42,166.07,134.04,77.46,71.09,66.11,60.87,53.27,53.17,47.99,43.80,41.32,38.43,36.78,34.71,34.25,27.66,17.92,15.52.HRMS(ESI):m/z calcd for C19H29NO5Na+[M+Na]+374.1938,found 374.1942.
实施例3:化合物2的制备
化合物2的结构如下:
其制备过程如下:
使用N-甲基哌嗪(1.89g,18.9mmol),按照实施例1中化合物1的合成步骤获得目标化合物2(白色固体,993mg,产率72%)。
对化合物2进行检测,其NMR数据如下:
1H NMR(400MHz,DMSO)δ4.47(s,1H),3.17(d,J=2.7Hz,1H),3.13(td,J=6.2,3.1Hz,1H),2.75(d,J=4.5Hz,1H),2.60(s,4H),2.57–2.51(m,2H),2.51(d,J=1.8Hz,1H),2.49–2.45(m,2H),2.41(dd,J=12.9,4.5Hz,2H),2.36(s,1H),2.34(s,4H),2.07(dd,J=12.9,2.3Hz,1H),1.95(dd,J=15.5,1.9Hz,1H),1.71(dt,J=15.0,3.8Hz,1H),1.60–1.52(m,2H),1.48(dd,J=15.5,4.3Hz,1H),1.32–1.24(m,1H),1.19(dd,J=12.4,3.2Hz,1H),0.83(s,3H),0.69–0.59(m,1H).13C NMR(100MHz,DMSO)δ177.5,77.5,71.1,60.9,53.7,52.5,51.1,48.0,44.3, 44.1,41.3,38.4,36.8,34.7,34.3,27.7,18.0,15.5.HRMS(ESI):m/z calcd for C20H32N2O4Na+[M+Na]+387.2254,found 387.2258.
实施例4:化合物2的富马酸盐——化合物6的制备
化合物6的结构如下:
使用实施例3所制备的化合物2(992mg,2.73mmol)和富马酸(300mg,2.59mmol),按照实施例2中化合物5的合成步骤获得目标化合物6(白色固体,846mg,产率65%)。
对化合物6进行检测,其NMR数据如下:
1H NMR(400MHz,DMSO)δ6.55(s,2H),4.47(s,1H),3.17(d,J=2.7Hz,1H),3.13(td,J=6.2,3.1Hz,1H),2.75(d,J=4.5Hz,1H),2.60(s,4H),2.57–2.51(m,2H),2.51(d,J=1.8Hz,1H),2.49–2.45(m,2H),2.41(dd,J=12.9,4.5Hz,2H),2.36(s,1H),2.34(s,4H),2.07(dd,J=12.9,2.3Hz,1H),1.95(dd,J=15.5,1.9Hz,1H),1.71(dt,J=15.0,3.8Hz,1H),1.60–1.52(m,2H),1.48(dd,J=15.5,4.3Hz,1H),1.32–1.24(m,1H),1.19(dd,J=12.4,3.2Hz,1H),0.83(s,3H),0.69–0.59(m,1H).13C NMR(100MHz,DMSO)δ177.5,166.9,134.5,77.5,71.1,60.9,53.7,52.5,51.1,48.0,44.3,44.1,41.3,38.4,36.8,34.7,34.3,27.7,18.0,15.5.HRMS(ESI):m/z calcd for C20H32N2O4Na+[M+Na]+387.2254,found 387.2258.
实施例5:化合物3的制备
化合物3的结构如下:
其制备过程如下:
使用哌啶(1.61g,18.9mmol),按照实施例1中化合物1的合成步骤获得目标化合物3(白色固体,1.08g,产率82%)。
对化合物3进行检测,其NMR数据如下:
1H NMR(400MHz,DMSO)δ4.48(d,J=4.3Hz,1H),3.37–2.98(m,2H),2.74(d,J=4.4Hz,1H),2.65–2.51(m,4H),2.48–2.27(m,4H),2.09(d,J=12.6Hz,1H),1.95(d,J=15.3Hz,1H),1.74(dd,J=16.3,12.4Hz,1H),1.54(ddt,J=20.8,15.2,8.8Hz,7H),1.43–1.09(m,5H),0.83(s,3H),0.62(q,J=12.8Hz,1H).13C NMR(100MHz,DMSO)δ177.3,77.4,71.1,60.9,53.7,53.0,48.0,43.9,41.3,38.6,36.8,34.7,34.2,27.7,24.9,23.4,17.9,15.6.HRMS(ESI):m/z calcd for C20H31NO4Na+[M+Na]+372.2145,found 372.2148.
实施例6:化合物3的富马酸盐——化合物7的制备
化合物7的结构如下:
使用实施例5所制备的化合物3(1.08g,3.09mmol)和富马酸(341mg,2.94mmol),按照实施例2中化合物5的合成步骤获得目标化合物7(白色固体,1.09g,产率76%)。
对化合物7进行检测,其NMR数据如下:
1H NMR(400MHz,DMSO)δ6.59(s,2H),4.48(d,J=4.3Hz,1H),3.37–2.98(m,2H),2.74(d,J=4.4Hz,1H),2.65–2.51(m,4H),2.48–2.27(m,4H),2.09(d,J=12.6Hz,1H),1.95(d,J=15.3Hz,1H),1.74(dd,J=16.3,12.4Hz,1H),1.54(ddt,J=20.8,15.2,8.8Hz,7H),1.43–1.09(m,5H),0.83(s,3H),0.62(q,J=12.8Hz,1H).13C NMR(100MHz,DMSO)δ177.3,166.4,134.2,77.4,71.1,60.9,53.7,53.0,48.0,43.9,41.3,38.6,36.8,34.7,34.2,27.7,24.9,23.4,17.9,15.6.HRMS(ESI):m/z calcd forC20H31NO4Na+[M+Na]+372.2145,found 372.2148.
实施例7:化合物4的制备
化合物4的结构如下:
其制备过程如下:
使用四氢吡咯(1.34g,18.9mmol),按照实施例1中化合物1的合成步骤获得目标化合物4(白色固体,914mg,产率72%)。
对化合物4进行检测,其NMR数据如下:
1H NMR(400MHz,DMSO)δ4.51(d,J=4.5Hz,1H),3.18(s,2H),2.88(t,J=11.3Hz,1H),2.81–2.58(m,6H),2.47(d,J=7.7Hz,3H),2.10(d,J=12.6Hz,1H),1.96(d,J=15.3Hz,1H),1.75(d,J=6.2Hz,5H),1.62–1.44(m,3H),1.32(dd,J=13.4,5.5Hz,1H),1.20(d,J=12.4Hz,1H),0.83(s,3H),0.63(q,J=12.8Hz,1H).13C NMR(100MHz,DMSO)δ176.8,77.5,71.1,60.9,53.5,49.9,48.0,45.2,41.2,38.4,36.7,34.7,34.2,27.7,22.9,17.9,15.7.HRMS(ESI):m/z calcd for C19H29NO4Na+[M+Na]+358.1989,found 358.1989.
实施例8:化合物4的富马酸盐——化合物8的制备
化合物8的结构如下:
使用实施例7所制备的化合物4(913mg,2.73mmol)和富马酸(301mg,2.59mmol),按照实施例2中化合物5的合成步骤获得目标化合物8(白色固体,754mg,产率61%)。
对化合物8进行检测,其NMR数据如下:
1H NMR(400MHz,DMSO)δ6.57(s,2H),4.51(d,J=4.5Hz,1H),3.18(s,2H),2.88(t,J=11.3Hz,1H),2.81–2.58(m,6H),2.47(d,J=7.7Hz,3H),2.10(d,J=12.6Hz,1H),1.96(d,J=15.3Hz,1H),1.75(d,J=6.2Hz,5H),1.62–1.44(m,3H), 1.32(dd,J=13.4,5.5Hz,1H),1.20(d,J=12.4Hz,1H),0.83(s,3H),0.63(q,J=12.8Hz,1H).13C NMR(100MHz,DMSO)δ176.8,166.7,134.4,77.5,71.1,60.9,53.5,49.9,48.0,45.2,41.2,38.4,36.7,34.7,34.2,27.7,22.9,17.9,15.7.HRMS(ESI):m/z calcd for C19H29NO4Na+[M+Na]+358.1989,found 358.1989.
对比例1:对照化合物9的制备
化合物9的结构如下:
其制备过程如下:
将化合物CP0105(1.00g,3.78mmol,可按照实施例1中记载的有关方法制得)溶解在四氢呋喃(16mL)中,向其中加入二甲胺(2M in THF,9.46mL,18.9mol),25℃下将反应体系搅拌4小时,反应结束后,旋转蒸发以除去溶剂,所得产物浓缩后再次溶解在四氢呋喃中(20mL),搅拌均匀后,向体系中加入富马酸(346mg,2.98mmol),室温下搅拌反应3小时,反应结束后,减压浓缩除去四氢呋喃,加入乙酸乙酯(100mL),得到悬浊液,抽滤后得到化合物9(白色固体,951mg,产率52%)。
对化合物9进行检测,其NMR数据如下:
1H NMR(400MHz,CDCl3)δ6.58(s,2H),4.50(q,J=2.8,2.0Hz,1H),3.24–3.05(m,2H),2.75(d,J=4.5Hz,1H),2.62(dd,J=12.8,10.4Hz,1H),2.50–2.45(m,3H),2.44–2.37(m,1H),2.26(s,6H),2.08(dd,J=13.0,2.4Hz,1H),1.96(dd,J=15.4,2.0Hz,1H),1.74(tt,J=15.3,3.6Hz,1H),1.63–1.46(m,3H),1.30(ddd,J=13.6,5.8,2.4Hz,1H),1.25–1.14(m,1H),0.83(s,3H),0.64(q,J=12.9Hz,1H).13C NMR(100MHz,CDCl3)δ177.6,167.0,134.8,78.0,71.5,61.3,54.1,48.5,45.1,44.7,41.7,38.9,37.2,35.2,34.7,28.2,18.4,16.0.HRMS(ESI):m/z calcd forC17H27NO4Na+[M+Na]+332.1832,found 332.1838.
对比例2:对照化合物10的制备
化合物10的结构如下:
使用CP0105(1.00g,3.78mmol,参考实施例1中描述的方法所制备)、二乙胺(1.38g,18.9mmol)和富马酸(346mg,2.98mmol),按照对比例1中化合物9的合成步骤获得目标化合物10(白色固体,1.13g,66%)。
对化合物10进行检测,其NMR数据如下:
1H NMR(400MHz,DMSO)δ4.49(q,J=6.9Hz,1H),3.69(ddt,J=7.1,5.1,3.4Hz,1H),3.23(dd,J=12.4,7.0Hz,1H),3.08(dq,J=12.4,8.0Hz,1H),2.75(dd,J=12.4,7.0Hz,1H),2.68(d,J=4.9Hz,1H),2.57(d,J=5.1Hz,1H),2.42–2.32(m,2H),2.17(dq,J=12.2,6.0Hz,1H),1.93(dq,J=12.5,8.0Hz,1H),1.83–1.77(m,3H),1.73(t,J=6.8Hz,1H),1.58(dd,J=13.0,7.0Hz,1H),1.43(dq,J=12.1,6.0Hz,1H),1.38–1.23(m,4H),1.16(dd,J=13.0,7.0Hz,1H),1.08–0.99(m,6H),0.75(s,3H).13C NMR(100MHz,DMSO)δ177.4,166.8,134.6,78.9,72.1,63.2,53.8,50.6,47.8,44.6,44.4,42.7,39.0,35.3,33.6,27.7,26.3,23.8,11.3.HRMS(ESI):m/z calcd for C19H32NO4 +[M+H]+:338.2326;found 338.2324.
实施例9:通过体外缓释模型,检测本发明化合物的缓释效果
本实施例中,采用模拟生理pH设计的前药体外缓释模型,检测上述实施例所制备的本发明化合物和对比例所制备的对照化合物的缓释效果,具体实验程序如下:
向5mL、pH为7.5的碱性缓冲液(100mM Hepes,100mM NaCl)中加入待测倍半萜类衍生物(即,前药)5.0mg,配制成浓度为1mg/mL的缓冲液样品,加入倍半萜衍生物混匀后立刻计时;分别在0、0.5、1、1.5、2、3、4、5、6、8、10、12hr时取出缓冲液样品100μL+100μL甲醇,混匀后过滤膜,HPLC(甲醇:0.1%甲酸水=10:90)进样20μL,分析各测试化合物所释放的原药CP0105的含量。其结果如图1所示。
由图1可知,与对照化合物9、10相比,本发明的倍半萜类衍生物均表现出明显的缓释效果,即,其缓释持续时间较长;特别是,化合物6的缓释 持续时间最长久,12小时还没有释放完;提示:本发明的倍半萜类衍生物具有明显更长的缓释持续时间,有作为长效缓释药物的潜能。
实施例10:在小鼠血浆模型上,检测本发明化合物的缓释效果
本实施例中,研究了实施例9中显示最长体外缓释时间的本发明化合物6在小鼠血浆模型中的缓释效果,具体实验步骤如下:
向小鼠空白血浆900μL中加入100μL、浓度8mg/mL的待测倍半萜类衍生物(即,前药)溶液,配制成血浆浓度为0.8mg/mL的血浆样品,加入倍半萜类衍生物溶液后立刻计时;分别在0、0.5、1、1.5、2、3、4、6、8、10、12hr时取出血浆样品75μL+150μL乙腈沉淀剂,涡旋混匀2-3min,12000rpm4℃离心10分钟,取上清液,过滤膜,HPLC(甲醇:0.1%甲酸水=10:90)进样20μL,分析前药以及所释放的原药CP0105的含量。结果如图2所示。
由图2可知,与对照化合物CP0105相比,本发明的化合物6在小鼠血浆中能够长时间持续缓慢释放原药(CP0105),具有明显更优的缓释效果。
实施例11:药代动力学研究
本实施例中,研究了本发明化合物6与对照化合物9在小鼠体内的药代动力学和缓释效果,具体实验步骤如下:
本实验所使用小鼠为雄性CD-1小鼠(6-8周),购自北京Vital River实验室(中国北京)。12只小鼠平均分为四组,分别为:
化合物6静脉注射组,化合物6口服给药组,化合物9静脉注射组,和化合物9口服给药组。
按照100mg化合物/kg体重的剂量,分别以静脉注射、口服两种不同给药方式向小鼠给药优选的倍半萜类衍生物6和对照化合物9,给药后立刻计时;分别在0、0.5、1、1.5、2、3、4、6、8、10、12hr时取出血浆样品20μL,向其中加入180μL乙腈沉淀剂,涡旋混匀2-3min,12000rpm 4℃离心10分钟,取上清液,通过过滤膜过滤,HPLC(甲醇:0.1%甲酸水=10:90)进样20μL,分析前药以及所释放的原药CP0105的含量。化合物6、9静脉注射组给药后迅速达到峰值。口服给药的实验结果如以下表1所示。
表1各化合物口服给药的实验结果

由表1可知,与对照化合物9相比,本发明的化合物6在小鼠体内具有明显更优的缓释效果,具体表现为:口服药物最大血药浓度为9650ng/mL,相较于对照化合物9更高;半衰期为6.2h,相较于对照化合物9更长;药物血浆维持时间为32h,相较于对照化合物9更持久;口服生物利用度为92%,相较于对照化合物9更高。
实施例12:本发明化合物的抗肿瘤功效研究
本实施例中,检测了本发明化合物与对照化合物在小鼠移植瘤模型中的抗肿瘤功效,具体程序如下:
收集生长状态良好的肿瘤细胞B16F10、LLC、PAN02、H22、CT26、MFC和GL261,分别用1×PBS洗涤2次,用细胞计数仪计算细胞总数,用1×PBS将细胞液稀释成1×107个细胞/mL的细胞悬浮液。
本实验所使用小鼠均购自北京Vital River实验室(中国北京)。上述不同种类的肿瘤细胞分别接种于不同的小鼠类型以产生各自相应的荷瘤小鼠,具体如下:
B16F10选用6-8周龄C57BL/6雌性小鼠,LLC选用6-8周龄Balb/c雌性小鼠,PAN02选用6-8周龄C57BL/6J雌性小鼠,H22选用6-8周龄C57BL/6雌性小鼠,CT26选用6-8周龄Balb/c雌性小鼠,MFC选用6-8周龄BALB/c-nu/nu雌性小鼠,GL261选用6-8周龄C57BL/6雌性小鼠。
按每只小鼠1×106个肿瘤细胞的接种量(即,100μL细胞悬浮液/只小鼠),将上述细胞悬浮液接种至小鼠前肢腋窝处;待肿瘤平均体积超过100cm3时(个体间肿瘤体积差异不超过10%),将小鼠随机几组,每组8只,按100mg/kg体重的给药剂量,将化合物5、6、7、8、9每两天口服灌胃给药一次,直至实验终点。
实验结束后,用安乐死的方式处死小鼠,收集肿瘤组织,并对其体积、重量进行测试,计算肿瘤抑制率。
肿瘤抑制率=(1-治疗组瘤重量/对照组瘤重量)*100%
实验结果如下表2所示。
表2、各化合物对一系列肿瘤的抑制率

由表2可知,口服给药化合物5、6、7、8、9均对肿瘤细胞B16F10、LLC、PAN02、H22、CT26、MFC和GL261产生了显著的抗肿瘤活性;化合物5、6、7、8相较于对照化合物9在各个肿瘤细胞中的抗肿瘤活性都有明显提升,其中,化合物6的抗肿瘤活性最好,与对照化合物9相比,其药效显著提升,特别是在一些肿瘤中,其肿瘤抑制率提高了约2-3倍。
最后应说明的是:以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明技术方案的精神和范围。

Claims (17)

  1. 一种倍半萜类衍生物或其药学上可接受的盐,其特征在于:所述倍半萜类衍生物具有如式(I)所示的结构:
    其中,R为3-9元饱和杂环氨基,所述杂环氨基含有至少一个N原子和任选地O原子作为环原子,并且,所述杂环氨基通过其氨基部分与分子其余部分连接。
  2. 根据权利要求1所述的倍半萜类衍生物或其药学上可接受的盐,其特征在于:所述R为5-6元饱和杂环氨基,所述杂环氨基含有1-2个N原子和0-1个O原子作为环原子,并通过其氨基部分与分子其余部分连接。
  3. 根据权利要求2所述的倍半萜类衍生物或其药学上可接受的盐,其特征在于:所述杂环氨基选自以下组成的组:吗啉基、哌啶基、四氢吡咯基、N-取代哌嗪基,其中,N-取代的取代基选自以下:H、C1-C3烷基。
  4. 根据权利要求1所述的倍半萜类衍生物或其药学上可接受的盐,其特征在于:所述倍半萜类衍生物为选自以下的化合物:
  5. 根据权利要求1-4任一项所述的倍半萜类衍生物或其药学上可接受的盐,其特征在于:所述倍半萜类衍生物的药学上可接受的盐为所述倍半萜类衍生物与无机酸或有机酸所形成的盐。
  6. 根据权利要求5所述的倍半萜类衍生物或其药学上可接受的盐,其特征在于:所述无机酸选自由以下组成的组:氢氟酸、盐酸、氢溴酸、氢碘酸、硫酸、硝酸、磷酸、碳酸。
  7. 根据权利要求5所述的倍半萜类衍生物或其药学上可接受的盐,其特征在于:所述有机酸选自由以下组成的组:柠檬酸、马来酸、D-苹果酸、L-苹果酸、DL-苹果酸、D-乳酸、L-乳酸、DL-乳酸、草酸、甲磺酸、对甲苯磺酸、酒石酸、丙二酸、丁二酸、富马酸、苯甲酸或取代苯甲酸。
  8. 根据权利要求5所述的倍半萜类衍生物或其药学上可接受的盐,其特征在于:所述倍半萜类衍生物的药学上可接受的盐为所述倍半萜类衍生物的富马酸盐。
  9. 根据权利要求8所述的倍半萜类衍生物或其药学上可接受的盐,其特征在于:所述倍半萜类衍生物的药学上可接受的盐选自以下:
  10. 权利要求1所述的倍半萜类衍生物或其药学上可接受的盐的制备方法,其合成路线如下
    其中,所述Sol.为溶剂。
  11. 根据权利要求10所述的制备方法,其特征在于:所述Sol.选自二氯甲烷、三氯甲烷、四氢呋喃、甲醇、乙醇、甲苯、乙腈、乙酸乙酯、N,N'-二甲基甲酰胺、二甲基亚砜、水中的一种或多种。
  12. 一种药物组合物,其包括:如权利要求1-9任一项所述的倍半萜类衍生物或其药学上可接受的盐;以及药学上可接受的载体和/或赋形剂。
  13. 根据权利要求12所述的药物组合物,其特征在于:所述药物组合物为口服剂型或肠胃外给药剂型。
  14. 根据权利要求13所述的药物组合物,其特征在于:所述口服剂型选自口服液、糖浆剂、片剂、胶囊剂、咀嚼片、丸剂或颗粒剂。
  15. 根据权利要求13所述的药物组合物,其特征在于:所述肠胃外给药剂型选自静脉、肌内、皮内、皮下、脊椎腔注射剂。
  16. 权利要求1-9任一项所述的倍半萜类衍生物或其药学上可接受的盐或者根据权利要求12-15任一项所述的药物组合物在制备用于治疗肿瘤的药物中的用途。
  17. 根据权利要求16所述的用途,其特征在于:所述肿瘤选自由以下组成的组:黑色素瘤、肺癌、胰腺癌、肝癌、结直肠癌、胃癌和脑胶质瘤。
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