CN102961323B - Promote liquid preparation of the active closed loop rate of camptothecine compounds and its preparation method and application - Google Patents
Promote liquid preparation of the active closed loop rate of camptothecine compounds and its preparation method and application Download PDFInfo
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- CN102961323B CN102961323B CN201210514939.0A CN201210514939A CN102961323B CN 102961323 B CN102961323 B CN 102961323B CN 201210514939 A CN201210514939 A CN 201210514939A CN 102961323 B CN102961323 B CN 102961323B
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- polyethylene glycol
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- topotecan
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- 238000002360 preparation method Methods 0.000 title claims abstract description 57
- VSJKWCGYPAHWDS-FQEVSTJZSA-N camptothecin Chemical class C1=CC=C2C=C(CN3C4=CC5=C(C3=O)COC(=O)[C@]5(O)CC)C4=NC2=C1 VSJKWCGYPAHWDS-FQEVSTJZSA-N 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 title claims description 42
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 74
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 65
- 239000003814 drug Substances 0.000 claims abstract description 53
- 229940079593 drug Drugs 0.000 claims abstract description 51
- UCFGDBYHRUNTLO-QHCPKHFHSA-N topotecan Chemical compound C1=C(O)C(CN(C)C)=C2C=C(CN3C4=CC5=C(C3=O)COC(=O)[C@]5(O)CC)C4=NC2=C1 UCFGDBYHRUNTLO-QHCPKHFHSA-N 0.000 claims abstract description 47
- 229960000303 topotecan Drugs 0.000 claims abstract description 47
- 239000000654 additive Substances 0.000 claims abstract description 25
- 230000000996 additive effect Effects 0.000 claims abstract description 23
- 239000002904 solvent Substances 0.000 claims abstract description 22
- VSJKWCGYPAHWDS-UHFFFAOYSA-N dl-camptothecin Natural products C1=CC=C2C=C(CN3C4=CC5=C(C3=O)COC(=O)C5(O)CC)C4=NC2=C1 VSJKWCGYPAHWDS-UHFFFAOYSA-N 0.000 claims abstract description 18
- KLWPJMFMVPTNCC-UHFFFAOYSA-N Camptothecin Natural products CCC1(O)C(=O)OCC2=C1C=C3C4Nc5ccccc5C=C4CN3C2=O KLWPJMFMVPTNCC-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229940127093 camptothecin Drugs 0.000 claims abstract description 15
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- HAWSQZCWOQZXHI-FQEVSTJZSA-N 10-Hydroxycamptothecin Chemical compound C1=C(O)C=C2C=C(CN3C4=CC5=C(C3=O)COC(=O)[C@]5(O)CC)C4=NC2=C1 HAWSQZCWOQZXHI-FQEVSTJZSA-N 0.000 claims abstract description 8
- UWKQSNNFCGGAFS-XIFFEERXSA-N irinotecan Chemical compound C1=C2C(CC)=C3CN(C(C4=C([C@@](C(=O)OC4)(O)CC)C=4)=O)C=4C3=NC2=CC=C1OC(=O)N(CC1)CCC1N1CCCCC1 UWKQSNNFCGGAFS-XIFFEERXSA-N 0.000 claims abstract description 7
- 229960004768 irinotecan Drugs 0.000 claims abstract description 7
- VHXNKPBCCMUMSW-FQEVSTJZSA-N rubitecan Chemical compound C1=CC([N+]([O-])=O)=C2C=C(CN3C4=CC5=C(C3=O)COC(=O)[C@]5(O)CC)C4=NC2=C1 VHXNKPBCCMUMSW-FQEVSTJZSA-N 0.000 claims abstract description 6
- 229950009213 rubitecan Drugs 0.000 claims abstract description 6
- FJHBVJOVLFPMQE-QFIPXVFZSA-N 7-Ethyl-10-Hydroxy-Camptothecin Chemical compound C1=C(O)C=C2C(CC)=C(CN3C(C4=C([C@@](C(=O)OC4)(O)CC)C=C33)=O)C3=NC2=C1 FJHBVJOVLFPMQE-QFIPXVFZSA-N 0.000 claims abstract description 4
- FUXVKZWTXQUGMW-FQEVSTJZSA-N 9-Aminocamptothecin Chemical compound C1=CC(N)=C2C=C(CN3C4=CC5=C(C3=O)COC(=O)[C@]5(O)CC)C4=NC2=C1 FUXVKZWTXQUGMW-FQEVSTJZSA-N 0.000 claims abstract description 4
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Abstract
本发明涉及一种通过简单添加聚乙二醇提升喜树碱类化合物活性闭环率的制剂,以聚乙二醇为添加剂,喜树碱类衍生物为药物分子,水为主体的分散介质为溶媒三种共同组成。其中主要添加剂为聚乙二醇,药物分子为喜树碱、10-羟基喜树碱、9-硝基喜树碱、9-氨基喜树碱、7-乙基-10-羟基喜树碱、拓扑替康、伊立替康、鲁比替康、依喜替康、贝罗替康、Karenitecin、吉咪替康、吉马替康等的一种或多种。通过简单添加聚乙二醇,可以显著提高喜树碱类药物的活性闭环率,增强药效,能够有效降低药物的全身反应,有望用于不同阶段的肿瘤治疗。
The invention relates to a preparation for improving the active ring-closing rate of camptothecin compounds by simply adding polyethylene glycol. Polyethylene glycol is used as an additive, camptothecin derivatives are used as drug molecules, and the dispersion medium mainly composed of water is used as a solvent. Composed of three. The main additive is polyethylene glycol, and the drug molecules are camptothecin, 10-hydroxycamptothecin, 9-nitrocamptothecin, 9-aminocamptothecin, 7-ethyl-10-hydroxycamptothecin, One or more of topotecan, irinotecan, rubitecan, exitecan, berotecan, karenitecin, gemitecan, gemotecan, etc. By simply adding polyethylene glycol, the active loop closure rate of camptothecin drugs can be significantly improved, the efficacy of the drug can be enhanced, and the systemic reaction of the drug can be effectively reduced. It is expected to be used in the treatment of tumors at different stages.
Description
技术领域 technical field
本发明属药物技术领域,具体涉及一种提升喜树碱类化合物活性闭环率的液体制剂及其制备方法和应用。 The invention belongs to the technical field of medicines, and in particular relates to a liquid preparation for increasing the active ring-closing rate of camptothecin compounds and its preparation method and application.
背景技术 Background technique
喜树碱是一种抗癌药物活性分子,上个世纪60年代从我国的喜树中分离出来,因而得名。由于其水溶性差及毒副作用大等问题,通常在活性的非敏感位点修饰上一些取代官能团用以提高药效及水溶性。目前已有两种喜树碱类的衍生物伊立替康(CPT-11)及拓扑替康(Topotecan)被国家食品药品监督管理局批准进入临床,已被广泛用于胃癌、食道癌、胰腺癌及结肠癌等方面的治疗。但是几乎所有的喜树碱类药物都面临着自身结构不稳定这个问题,如附图1中所示。 Camptothecin is an active molecule of anticancer drugs, which was isolated from camptotheca in our country in the 1960s, hence the name. Due to its poor water solubility and high toxicity and side effects, some functional groups are usually modified on active non-sensitive sites to improve drug efficacy and water solubility. At present, two camptothecin derivatives, irinotecan (CPT-11) and topotecan (Topotecan) have been approved by the State Food and Drug Administration for clinical use, and have been widely used in gastric cancer, esophageal cancer, and pancreatic cancer. and colon cancer treatment. But almost all camptothecin drugs face the problem of unstable structure, as shown in Figure 1.
喜树碱类药物的结构中有一个内酯环,它在中性以及碱性的条件下很容易发生开环水解,文献中已经明确指出,喜树碱类的抗癌药物,只有闭环形式才是有效的,一旦开环则将失去原有的抗肿瘤活性,并会导致一些不可避免的毒副作用。而在生理条件下,喜树碱类化合物的闭环率仅占10%左右,所以如何提高喜树碱类药物的活性闭环率是其能否成功应用的一个关键问题。 There is a lactone ring in the structure of camptothecin drugs, and it is easy to undergo ring-opening hydrolysis under neutral and alkaline conditions. It has been clearly pointed out in the literature that only the closed-ring form of camptothecin-based anticancer drugs can It is effective, but once the ring is opened, the original anti-tumor activity will be lost, and some unavoidable toxic side effects will be caused. Under physiological conditions, the ring closure rate of camptothecin compounds only accounts for about 10%, so how to improve the active ring closure rate of camptothecin drugs is a key issue for their successful application.
聚乙二醇是已被FDA批准的一种药用辅料,已广泛用作药物制剂中的增溶剂及修饰剂等,一些难溶性药物通过PEG进行增容,但是使用PEG来改变药物分子(亲水性药物以及疏水性药物)的活性成分比例却未有报道。 Polyethylene glycol is a pharmaceutical excipient that has been approved by the FDA. It has been widely used as a solubilizer and modifier in pharmaceutical preparations. Some insoluble drugs are compatibilized by PEG, but PEG is used to change drug molecules (philic Aqueous drugs and hydrophobic drugs) the proportion of active ingredients has not been reported.
本发明专利针对喜树碱类衍生物活性闭环率低的问题,通过简单添加PEG即可显著提高其平衡闭环率。该方法操作简单,重现性好,成本低,能够有效降低药物的全身反应,有望用于不同阶段的肿瘤治疗。 The patent of the present invention aims at the problem of low active loop closure rate of camptothecin derivatives, and the equilibrium loop closure rate can be significantly improved by simply adding PEG. The method is simple to operate, has good reproducibility, low cost, can effectively reduce the systemic reaction of drugs, and is expected to be used in the treatment of tumors at different stages.
发明内容 Contents of the invention
本发明的目的在于提供一种能够提高喜树碱类衍生物活性闭环率的液体制剂及其制备方法和应用。 The object of the present invention is to provide a liquid preparation capable of increasing the active ring closure rate of camptothecin derivatives, its preparation method and application.
本发明提出液体制剂,以聚乙二醇为添加剂,药物喜树碱类衍生物为活性成分,水为主体的分散介质为溶媒,三者一起共同构成;聚乙二醇含量占总体液体制剂的10%-90wt%,所载药物占总体液体制剂的的0.001-10wt%。聚乙二醇的加入能够显著提高所载喜树碱及其衍生物的活性闭环率,提高药物的活性。 The present invention proposes a liquid preparation, with polyethylene glycol as an additive, drug camptothecin derivatives as an active ingredient, and water as a main dispersion medium as a solvent, and the three together form together; the content of polyethylene glycol accounts for 30% of the total liquid preparation 10%-90wt%, and the drug contained accounts for 0.001-10wt% of the total liquid preparation. The addition of polyethylene glycol can significantly increase the active ring closure rate of the contained camptothecin and its derivatives, and improve the activity of the drug.
本发明所述的添加剂,包括: Additives of the present invention include:
(1)聚乙二醇的分子量介于200-20000之间,并可为其中的一种或多种的混合物; (1) The molecular weight of polyethylene glycol is between 200-20000, and it can be a mixture of one or more of them;
(2)聚乙二醇末端可以甲氧基封端; (2) The end of polyethylene glycol can be capped with methoxy;
(3)聚乙二醇末端可接有功能端基,端基可以是亲水的羟基、氨基、羧基、咪唑基、醛基、氰基、硝基中的任何一种;也可以是疏水的烷基、固醇、烷氧基、芳香基、芳杂环基、酰胺酯基、卤素原子、三氯甲基、酯基、巯基、烯丙基中的任何一种; (3) The end of polyethylene glycol can be connected with a functional end group, and the end group can be any of hydrophilic hydroxyl, amino, carboxyl, imidazole, aldehyde, cyano, nitro; it can also be hydrophobic Any one of alkyl group, sterol, alkoxy group, aromatic group, aromatic heterocyclic group, amide ester group, halogen atom, trichloromethyl group, ester group, mercapto group and allyl group;
(4)所述添加剂可以是上述任意一种聚合物,也可以是上述两种或两种以上聚合物的混合物,其中包括不同端基的聚合物的混合物。 (4) The additive may be any one of the above-mentioned polymers, or a mixture of two or more of the above-mentioned polymers, including a mixture of polymers with different terminal groups.
本发明所述药物选自疏水性的喜树碱、10-羟基喜树碱、9-硝基喜树碱、9-氨基喜树碱、7-乙基-10-羟基喜树碱、鲁比替康、依喜替康、贝罗替康、Karenitecin、吉咪替康、吉马替康,也可是亲水性的拓扑替康、伊立替康之一或其组合。 The medicine of the present invention is selected from hydrophobic camptothecin, 10-hydroxycamptothecin, 9-nitrocamptothecin, 9-aminocamptothecin, 7-ethyl-10-hydroxycamptothecin, Rubi Tecan, Exitecan, Berotecan, Karenitecin, Gemitecan, Gematecan, or one or a combination of hydrophilic topotecan and irinotecan.
本发明所载的喜树碱类衍生物,在溶媒pH6.5-8之间时有效闭环形式为15%-80%。 The camptothecin derivatives contained in the present invention have an effective ring-closed form of 15%-80% when the pH of the solvent is between 6.5-8.
本发明所述的液体制剂,其溶媒可以为纯水、缓冲溶液、体液、组织培养液或其他不以有机溶剂为主体的溶剂介质。 The solvent of the liquid preparation of the present invention can be pure water, buffer solution, body fluid, tissue culture fluid or other solvent media that do not mainly contain organic solvents.
所述的液体制剂,其特征在于pH值介于4-8之间。 The liquid preparation is characterized in that the pH value is between 4-8.
本发明的液体制剂的制备方法,可选自下列之一: The preparation method of the liquid preparation of the present invention can be selected from one of the following:
(1)一定量的聚乙二醇及活性剂量的药物共同溶解于溶媒,充分溶解后,于-20℃或-20℃以下储存备用,使用前复溶,体内注射; (1) A certain amount of polyethylene glycol and the active dose of the drug are dissolved in the solvent together. After fully dissolving, store it at -20°C or below -20°C for later use, reconstitute before use, and inject in vivo;
(2)一定量的聚乙二醇首先溶于溶媒中,于-20℃或-20℃以下储存备用,使用前复溶,加入活性剂量的药物干粉,充分溶解后,直接使用。 (2) A certain amount of polyethylene glycol is first dissolved in the solvent, stored at -20°C or below for later use, redissolved before use, and the active dose of drug dry powder is added, fully dissolved, and used directly.
上述方法中所述的聚乙二醇,聚乙二醇含量占总体液体制剂的10%-90%。 For the polyethylene glycol described in the above method, the polyethylene glycol content accounts for 10%-90% of the total liquid preparation.
上述方法中所述的聚乙二醇: Polyethylene glycol as described in the above method:
(1)聚乙二醇的分子量介于200-20000之间,并可为其中的一种或多种的混合物; (1) The molecular weight of polyethylene glycol is between 200-20000, and it can be a mixture of one or more of them;
(2)聚乙二醇末端可以甲氧基封端; (2) The end of polyethylene glycol can be capped with methoxy;
(3)聚乙二醇末端可接有功能端基,端基可以是亲水的羟基、氨基、羧基、咪唑基、醛基、氰基、硝基中的任何一种;也可以是疏水的烷基、固醇、烷氧基、芳香基、芳杂环基、酰胺酯基、卤素原子、三氯甲基、酯基、巯基、烯丙基中的任何一种; (3) The end of polyethylene glycol can be connected with a functional end group, and the end group can be any of hydrophilic hydroxyl, amino, carboxyl, imidazole, aldehyde, cyano, nitro; it can also be hydrophobic Any one of alkyl group, sterol, alkoxy group, aromatic group, aromatic heterocyclic group, amide ester group, halogen atom, trichloromethyl group, ester group, mercapto group and allyl group;
(4)所述添加剂可以是上述任意一种聚合物,也可以是上述两种或两种以上聚合物的混合物,其中包括不同端基的聚合物的混合物。 (4) The additive may be any one of the above-mentioned polymers, or a mixture of two or more of the above-mentioned polymers, including a mixture of polymers with different terminal groups.
上述方法中所载药物选自疏水性的喜树碱、10-羟基喜树碱、9-硝基喜树碱、9-氨基喜树碱、7-乙基-10-羟基喜树碱、鲁比替康、依喜替康、贝罗替康、Karenitecin、吉咪替康、吉马替康,也可是亲水性的拓扑替康、伊立替康之一或其组合。 The drug contained in the above method is selected from hydrophobic camptothecin, 10-hydroxycamptothecin, 9-nitrocamptothecin, 9-aminocamptothecin, 7-ethyl-10-hydroxycamptothecin, Bitecan, Exitecan, Berotecan, Karenitecin, Gemitecan, Gematecan, or one or a combination of hydrophilic topotecan and irinotecan.
上述方法中所载的喜树碱类衍生物,其特征在于在溶媒pH6.5-8之间时有效闭环形式为15%-80%。 The camptothecin derivatives contained in the above method are characterized in that the effective ring-closed form is 15%-80% when the pH of the solvent is between 6.5-8.
上述方法中所述的溶媒,其特征在于可以为纯水、缓冲溶液、体液、组织培养液或其他不以有机溶剂为主体的溶剂介质。 The solvent described in the above method is characterized in that it can be pure water, buffer solution, body fluid, tissue culture fluid or other solvent media that do not mainly contain organic solvents.
上述方法中所述的液体制剂,其特征在于pH值介于4-8之间。 The liquid preparation described in the above method is characterized in that the pH value is between 4-8.
本发明所述的液体制剂可用于制备治疗肿瘤的药物制剂。其肿瘤的类别可以为脑肿瘤、肝癌、肺癌、食管癌、胃癌、乳腺癌、胰腺癌、甲状腺癌、鼻咽癌、卵巢癌、子宫内膜癌、肾癌、前列腺癌、膀胱癌、结肠癌、直肠癌、睾丸癌、头颈部癌等原发或继发的癌、肉瘤或癌肉瘤。 The liquid preparation of the present invention can be used to prepare pharmaceutical preparations for treating tumors. The types of tumors can be brain tumors, liver cancer, lung cancer, esophageal cancer, gastric cancer, breast cancer, pancreatic cancer, thyroid cancer, nasopharyngeal cancer, ovarian cancer, endometrial cancer, kidney cancer, prostate cancer, bladder cancer, colon cancer , rectal cancer, testicular cancer, head and neck cancer and other primary or secondary cancer, sarcoma or carcinosarcoma.
本发明所述的药物制剂,可通过口服给药、静脉注射、皮下注射、肌肉注射及瘤内注射给药。 The pharmaceutical preparation of the present invention can be administered through oral administration, intravenous injection, subcutaneous injection, intramuscular injection and intratumoral injection.
不同制剂体内S180肉瘤模型药效学表征见表1。 The pharmacodynamic characteristics of different preparations in the S180 sarcoma model in vivo are shown in Table 1.
附图说明 Description of drawings
图1喜树碱类药物的开闭环转换。 Figure 1 Opening and closing ring transitions of camptothecin-like drugs.
图2拓扑替康在PEG溶液中的平衡闭环率。 Figure 2 The equilibrium ring closure rate of topotecan in PEG solution.
图3羟基喜树碱在PEG溶液中的平衡闭环率。 Fig. 3 Equilibrium ring closure rate of hydroxycamptothecin in PEG solution.
图4拓扑替康在不同分子量PEG中的平衡闭环率。 Fig. 4 The equilibrium ring closure rate of topotecan in different molecular weight PEG.
图5S180肉瘤模型药效学评价。图中Saline组为阴性对照生理盐水组;A0为空白MPEG5000组;B1为PEG+药物组;C1为单独药物组;D为阳性对照5-氟尿嘧啶组。 Fig. 5 Pharmacodynamic evaluation of S180 sarcoma model. In the figure, the Saline group is the negative control saline group; A0 is the blank MPEG5000 group; B1 is the PEG+drug group; C1 is the drug alone group; D is the positive control 5-fluorouracil group.
具体实施方式 detailed description
下面通过实例进一步描述本发明,但不限于这些实施例。 The present invention is further described by examples below, but not limited to these examples.
实施例1-9:聚乙二醇不同的端基Examples 1-9: Different end groups of polyethylene glycol
实施例1 Example 1
取15g聚乙二醇1500(PEG1500),加入5g丁二酸酐,2ml吡啶,共溶于200ml二氯甲烷中,回流48小时。悬蒸除去部分有机溶剂和吡啶后,冷却析出未反应的丁二酸酐,过滤去滤液。再次旋蒸除去大部分有机溶剂,用10倍过量乙醚沉淀,过滤得产品,真空干燥,得双端基为羧基的载体材料。 Take 15g of polyethylene glycol 1500 (PEG1500), add 5g of succinic anhydride, 2ml of pyridine, dissolve in 200ml of dichloromethane, and reflux for 48 hours. After removing part of the organic solvent and pyridine by suspension evaporation, unreacted succinic anhydride was precipitated by cooling, and the filtrate was filtered off. Rotary evaporation again to remove most of the organic solvent, precipitation with 10 times excess diethyl ether, filtration to obtain the product, vacuum drying to obtain a carrier material with carboxyl groups at both ends.
实施例2 Example 2
取20g单甲氧基聚乙二醇2000(PEG2000),加入5g丁二酸酐,2ml吡啶,共溶于200ml二氯甲烷中,回流48小时。悬蒸除去部分有机溶剂和吡啶后,冷却析出未反应的丁二酸酐,过滤去滤液。再次旋蒸除去大部分有机溶剂,用10倍过量乙醚沉淀,过滤得产品,真空干燥,得单端基为羧基的载体材料。 Take 20g of monomethoxypolyethylene glycol 2000 (PEG2000), add 5g of succinic anhydride, 2ml of pyridine, dissolve in 200ml of dichloromethane, and reflux for 48 hours. After removing part of the organic solvent and pyridine by suspension evaporation, unreacted succinic anhydride was precipitated by cooling, and the filtrate was filtered off. Rotary evaporation again to remove most of the organic solvent, precipitation with 10 times excess ether, filtration to obtain the product, and vacuum drying to obtain a carrier material with a single terminal group of carboxyl group.
实施例3 Example 3
取15g聚乙二醇1500(PEG1500),130℃真空除水4小时,加入50ml乙腈成溶液,缓慢滴入4倍聚合物羟基过量的CDI乙腈溶液中,反应过夜。后将反应液转移出并缓慢滴入乙二胺中,反应4小时,得双端基为氨基的聚乙二醇。 Take 15g of polyethylene glycol 1500 (PEG1500), remove water under vacuum at 130°C for 4 hours, add 50ml of acetonitrile to form a solution, slowly drop into the CDI acetonitrile solution with 4 times excess polymer hydroxyl groups, and react overnight. Afterwards, the reaction solution was transferred out and slowly dropped into ethylenediamine, and reacted for 4 hours to obtain polyethylene glycol with amino groups at both ends.
实施例4 Example 4
取20g单甲氧基聚乙二醇2000(PEG2000),130℃真空除水4小时,加入50ml乙腈成溶液,缓慢滴入4倍聚合物羟基过量的CDI乙腈溶液中,反应过夜。后将反应液转移出并缓慢滴入乙二胺中,反应4小时,得单端基为氨基的聚乙二醇。 Take 20g of monomethoxypolyethylene glycol 2000 (PEG2000), remove water under vacuum at 130°C for 4 hours, add 50ml of acetonitrile to form a solution, slowly drop into the CDI acetonitrile solution with 4 times excess polymer hydroxyl group, and react overnight. Afterwards, the reaction solution was transferred out and slowly dropped into ethylenediamine, and reacted for 4 hours to obtain polyethylene glycol with a single terminal group of amino group.
实施例5 Example 5
取15g聚乙二醇1500(PEG1500),加入N-Boc-组氨酸3.0g,1-乙基-(3-二甲基氨基丙基)碳二亚胺盐酸盐(EDC·HCl)3.5g,4-二甲氨基嘧啶(DMAP)2.6g,二氯甲烷150ml,常温下反应48小时。悬蒸除去部分溶剂,用乙醚沉淀,进一步用80℃洗涤,除去残余的未反应物和催化剂,冷冻干燥。得双端基为氨基酸(组氨酸)的聚乙二醇。 Take 15g of polyethylene glycol 1500 (PEG1500), add 3.0g of N -Boc-histidine, 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride (EDC·HCl) 3.5 g, 2.6 g of 4-dimethylaminopyrimidine (DMAP), 150 ml of dichloromethane, reacted at room temperature for 48 hours. Part of the solvent was removed by suspension evaporation, precipitated with ether, further washed at 80°C to remove residual unreacted substances and catalyst, and freeze-dried. Polyethylene glycol with double-terminal amino acid (histidine) was obtained.
实施例6 Example 6
取20g单甲氧基聚乙二醇2000(PEG2000),加入N-Boc-组氨酸3.0g,1-乙基-(3-二甲基氨基丙基)碳二亚胺盐酸盐(EDC·HCl)3.5g,4-二甲氨基嘧啶(DMAP)2.6g,二氯甲烷150ml,常温下反应48小时。悬蒸除去部分溶剂,用乙醚沉淀,进一步用80℃洗涤,除去残余的未反应物和催化剂,冷冻干燥。得单端基为氨基酸(组氨酸)的聚乙二醇。 Take 20g of monomethoxypolyethylene glycol 2000 (PEG2000), add 3.0g of N -Boc-histidine, 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC · HCl) 3.5g, 4-dimethylaminopyrimidine (DMAP) 2.6g, dichloromethane 150ml, react at room temperature for 48 hours. Part of the solvent was removed by suspension evaporation, precipitated with ether, further washed at 80°C to remove residual unreacted substances and catalyst, and freeze-dried. A polyethylene glycol with a single terminal amino acid (histidine) was obtained.
实施例7 Example 7
取15g聚乙二醇1500(PEG1500)溶解于二氯甲烷,慢慢滴加入丙烯酰氯(4mL)的二氯甲烷溶液(50mL),以三乙胺(4mL)作为缚酸剂,在冰浴下滴加8小时,后常温搅拌反应48h。用冰乙醚沉淀,真空干燥,得双端基为烯丙基修饰的聚乙二醇。 Dissolve 15g of polyethylene glycol 1500 (PEG1500) in dichloromethane, slowly add acryloyl chloride (4mL) in dichloromethane solution (50mL) dropwise, and use triethylamine (4mL) as an acid-binding agent. Added dropwise for 8 hours, then stirred at room temperature for 48 hours. Precipitate with glacial ether and dry in vacuo to obtain polyethylene glycol modified with allyl groups at both ends.
实施例8 Example 8
取20g单甲氧基聚乙二醇2000(PEG2000)溶解于二氯甲烷,慢慢滴加入丙烯酰氯(4mL)的二氯甲烷溶液(50mL),以三乙胺(4mL)作为缚酸剂,在冰浴下滴加8小时,后常温搅拌反应48h。用冰乙醚沉淀,真空干燥,得单端基为烯丙基修饰的聚乙二醇。 Dissolve 20g of monomethoxypolyethylene glycol 2000 (PEG2000) in dichloromethane, slowly add acryloyl chloride (4mL) in dichloromethane solution (50mL) dropwise, using triethylamine (4mL) as an acid-binding agent, Add dropwise under ice bath for 8 hours, then stir and react at room temperature for 48h. Precipitate with glacial ether and dry in vacuo to obtain polyethylene glycol modified with allyl group at one end.
实施例9 Example 9
取实例7-8中合成的聚合物材料,溶于磷酸盐缓冲液,加入交联剂APS及TEMED,得端基交联的聚乙二醇材料。 Take the polymer material synthesized in Examples 7-8, dissolve it in phosphate buffer, add cross-linking agents APS and TEMED, and obtain end-group cross-linked polyethylene glycol material.
实施例10-12:添加剂聚乙二醇制剂中的重量百分比 Embodiment 10-12: the weight percent in the additive polyethylene glycol preparation
实施例10 Example 10
取100mg拓扑替康及10g聚乙二醇20000,共同加入90ml磷酸盐缓冲液中,充分溶解后,得添加剂10wt%的液体载药制剂。 Take 100 mg of topotecan and 10 g of polyethylene glycol 20000, add them together into 90 ml of phosphate buffer solution, and after fully dissolving, a liquid drug-loaded preparation with an additive of 10 wt % is obtained.
实施例11 Example 11
取100mg拓扑替康及40g聚乙二醇2000,共同加入60ml磷酸盐缓冲液中,充分溶解后,得添加剂40wt%的液体载药制剂。 Take 100 mg of topotecan and 40 g of polyethylene glycol 2000, and add them together into 60 ml of phosphate buffer solution. After fully dissolving, a liquid drug-loaded preparation with 40 wt% of the additive is obtained.
实施例12 Example 12
取100mg拓扑替康及90g聚乙二醇200,共同加入10ml磷酸盐缓冲液中,充分溶解后,得添加剂90wt%的液体载药制剂。 Take 100 mg of topotecan and 90 g of polyethylene glycol 200, and add them together into 10 ml of phosphate buffer solution. After fully dissolving, a liquid drug-loaded preparation with an additive of 90 wt % is obtained.
实施例13-25:不同PEG组成 Examples 13-25: Different PEG compositions
实施例13 Example 13
取100mg拓扑替康及10g聚乙二醇200,共同加入90ml磷酸盐缓冲液中,充分溶解后,得添加剂为PEG200的液体载药制剂。 Take 100 mg of topotecan and 10 g of polyethylene glycol 200 and add them together into 90 ml of phosphate buffer solution. After fully dissolving, a liquid drug-loaded preparation with PEG200 as the additive is obtained.
实施例14 Example 14
取100mg拓扑替康及10g聚乙二醇400,共同加入90ml磷酸盐缓冲液中,充分溶解后,得添加剂为PEG200的液体载药制剂。 Take 100 mg of topotecan and 10 g of polyethylene glycol 400 and add them together into 90 ml of phosphate buffer solution. After fully dissolving, a liquid drug-loaded preparation with PEG200 as the additive is obtained.
实施例15 Example 15
取100mg拓扑替康及10g聚乙二醇1000,共同加入90ml磷酸盐缓冲液中,充分溶解后,得添加剂为PEG1000的液体载药制剂。 Take 100 mg of topotecan and 10 g of polyethylene glycol 1000, add them together into 90 ml of phosphate buffer solution, and after fully dissolving, obtain a liquid drug-loaded preparation in which the additive is PEG1000.
实施例16 Example 16
取100mg拓扑替康及10g聚乙二醇5000,共同加入90ml磷酸盐缓冲液中,充分溶解后,得添加剂为PEG5000的液体载药制剂。 Take 100 mg of topotecan and 10 g of polyethylene glycol 5000, add them together into 90 ml of phosphate buffer solution, and after fully dissolving, obtain a liquid drug-loaded preparation in which the additive is PEG5000.
实施例17 Example 17
取100mg拓扑替康及10g聚乙二醇20000,共同加入90ml磷酸盐缓冲液中,充分溶解后,得添加剂为PEG20000的液体载药制剂。 Take 100 mg of topotecan and 10 g of polyethylene glycol 20000, add them together into 90 ml of phosphate buffer solution, and after fully dissolving, obtain a liquid drug-loaded preparation in which the additive is PEG20000.
实施例18 Example 18
取100mg拓扑替康及5g聚乙二醇200与5g聚乙二醇2000,共同加入90ml磷酸盐缓冲液中,充分溶解后,得添加剂为PEG200及PEG2000混合物的液体载药制剂。 Take 100 mg of topotecan, 5 g of polyethylene glycol 200 and 5 g of polyethylene glycol 2000, and add them together into 90 ml of phosphate buffer solution. After fully dissolving, a liquid drug-loaded preparation whose additive is a mixture of PEG200 and PEG2000 is obtained.
实施例19 Example 19
取100mg拓扑替康及5g聚乙二醇5000与5g单甲氧基聚乙二醇5000,共同加入90ml磷酸盐缓冲液中,充分溶解后,得添加剂为PEG5000及MPEG2000混合物的液体载药制剂。 Take 100 mg of topotecan, 5 g of polyethylene glycol 5000 and 5 g of monomethoxy polyethylene glycol 5000, and add them together into 90 ml of phosphate buffer solution. After fully dissolving, a liquid drug-loaded preparation whose additive is a mixture of PEG5000 and MPEG2000 is obtained.
实施例20 Example 20
取100mg拓扑替康及3g聚乙二醇2000与7g端羧基聚乙二醇2000,共同加入90ml磷酸盐缓冲液中,充分溶解后,得添加剂为PEG2000及端羧基PEG2000混合物的液体载药制剂。 Take 100 mg of topotecan, 3 g of polyethylene glycol 2000 and 7 g of carboxyl-terminated polyethylene glycol 2000, and add them together to 90 ml of phosphate buffer solution. After fully dissolving, a liquid drug-loaded preparation whose additive is a mixture of PEG2000 and carboxyl-terminated PEG2000 is obtained.
实施例21 Example 21
取100mg拓扑替康及1g聚乙二醇4000与9g端氨基聚乙二醇2000,共同加入90ml磷酸盐缓冲液中,充分溶解后,得添加剂为PEG4000及端氨基PEG2000混合物的液体载药制剂。 Take 100 mg of topotecan, 1 g of polyethylene glycol 4000 and 9 g of amino-terminated polyethylene glycol 2000, and add them together to 90 ml of phosphate buffer solution. After fully dissolving, a liquid drug-loaded preparation whose additive is a mixture of PEG4000 and amino-terminated PEG2000 is obtained.
实施例22 Example 22
取100mg拓扑替康及5g聚乙二醇10000与5g端烯丙基聚乙二醇4000,共同加入90ml磷酸盐缓冲液中,充分溶解后,得添加剂为PEG10000及端烯丙基基PEG4000混合物的液体载药制剂。 Get 100mg of topotecan, 5g of polyethylene glycol 10000 and 5g of allyl-terminated polyethylene glycol 4000, and add them together in 90ml of phosphate buffer solution. After fully dissolving, the additive is a mixture of PEG10000 and allyl-terminated PEG4000. Liquid drug-loaded formulations.
实施例23 Example 23
取100mg拓扑替康及4g端羧基聚乙二醇8000与6g端烯丙基聚乙二醇2000,共同加入90ml磷酸盐缓冲液中,充分溶解后,得添加剂为端羧基PEG8000及端烯丙基基PEG2000混合物的液体载药制剂。 Take 100mg of topotecan, 4g of carboxyl-terminated polyethylene glycol 8000 and 6g of allyl-terminated polyethylene glycol 2000, and add them together into 90ml of phosphate buffer solution. After fully dissolving, the additives are carboxyl-terminated PEG8000 and Liquid drug-loaded formulation based on PEG2000 mixture.
实施例24 Example 24
取100mg拓扑替康及10g烯丙基聚乙二醇2000,共同加入90ml磷酸盐缓冲液中,充分溶解后,得添加剂为烯丙基PEG2000的液体载药制剂。 Take 100 mg of topotecan and 10 g of allyl polyethylene glycol 2000, add them together into 90 ml of phosphate buffer, and after fully dissolving, obtain a liquid drug-loading preparation in which the additive is allyl PEG2000.
实施例25 Example 25
取100mg拓扑替康及10g交联聚乙二醇2000,共同加入90ml磷酸盐缓冲液中,充分溶解后,得添加剂为交联PEG2000的液体载药制剂。 Take 100 mg of topotecan and 10 g of cross-linked polyethylene glycol 2000, add them together into 90 ml of phosphate buffer, and after fully dissolving, obtain a liquid drug-loaded preparation in which the additive is cross-linked PEG2000.
实施例26-29:不同的包载药物 Examples 26-29: Different entrapped drugs
实施例26 Example 26
取10mg喜树碱及40g聚乙二醇2000,共同加入60ml磷酸盐缓冲液中,充分溶解后,得包载喜树碱的液体制剂。 Take 10 mg of camptothecin and 40 g of polyethylene glycol 2000, and add them together into 60 ml of phosphate buffer solution, and after fully dissolving, a liquid preparation containing camptothecin is obtained.
实施例27 Example 27
取20mg羟基喜树碱及40g聚乙二醇2000,共同加入60ml磷酸盐缓冲液中,充分溶解后,得包载羟基喜树碱的液体制剂。 Take 20 mg of hydroxycamptothecin and 40 g of polyethylene glycol 2000, and add them together into 60 ml of phosphate buffer solution, and after fully dissolving, a liquid preparation containing hydroxycamptothecin is obtained.
实施例28 Example 28
取100mg拓扑替康及40g聚乙二醇2000,共同加入60ml磷酸盐缓冲液中,充分溶解后,得包载拓扑替康的液体制剂。 Take 100 mg of topotecan and 40 g of polyethylene glycol 2000, and add them together into 60 ml of phosphate buffer solution, and after fully dissolving, a liquid preparation containing topotecan is obtained.
实施例29 Example 29
取100mg伊立替康及40g聚乙二醇2000,共同加入60ml磷酸盐缓冲液中,充分溶解后,得包载伊立替康的液体制剂。 Take 100 mg of irinotecan and 40 g of polyethylene glycol 2000, and add them together into 60 ml of phosphate buffer solution, and after fully dissolving, a liquid preparation containing irinotecan is obtained.
实施例30-32:包载药物的重量百分比 Embodiment 30-32: weight percentage of entrapped drug
实施例30 Example 30
取1mg拓扑替康及40g聚乙二醇2000,共同加入60ml磷酸盐缓冲液中,充分溶解后,得包载0.001wt%拓扑替康的液体制剂。 Take 1 mg of topotecan and 40 g of polyethylene glycol 2000, add them together into 60 ml of phosphate buffer, and after fully dissolving, a liquid preparation containing 0.001 wt% topotecan is obtained.
实施例31 Example 31
取100mg拓扑替康及40g聚乙二醇2000,共同加入60ml磷酸盐缓冲液中,充分溶解后,得包载0.1wt%拓扑替康的液体制剂。 Take 100 mg of topotecan and 40 g of polyethylene glycol 2000, add them together into 60 ml of phosphate buffer, and after fully dissolving, a liquid preparation containing 0.1 wt % topotecan is obtained.
实施例32 Example 32
取10g拓扑替康及40g聚乙二醇2000,共同加入50ml磷酸盐缓冲液中,充分溶解后,得包载10wt%拓扑替康的液体制剂。 Take 10g of topotecan and 40g of polyethylene glycol 2000, add them together into 50ml of phosphate buffer solution, and after fully dissolving, a liquid preparation containing 10wt% topotecan is obtained.
实施例33-34:不同制备方法 Examples 33-34: Different preparation methods
实施例33 Example 33
取活性剂量的拓扑替康及40g聚乙二醇2000,共同加入60ml磷酸盐缓冲液中,充分溶解后,得包载拓扑替康的液体制剂,于-20℃或以下储存备用,使用前复溶,体内注射。 Take the active dose of topotecan and 40g of polyethylene glycol 2000, and add them together into 60ml of phosphate buffer solution. After fully dissolving, a liquid preparation containing topotecan is obtained. Store it at -20°C or below for later use, and reconstitute it before use. Dissolved, injected into the body.
实施例34 Example 34
先配制40wt%的聚乙二醇2000溶液,于-20℃或以下储存备用,使用前复溶,加入活性剂量的拓扑替康,充分溶解后,直接使用。 First prepare a 40wt% polyethylene glycol 2000 solution, store it at -20°C or below for later use, redissolve it before use, add the active dose of topotecan, fully dissolve it, and use it directly.
实施例35-38:不同溶媒 Examples 35-38: Different vehicles
实施例35 Example 35
取100mg拓扑替康及40g聚乙二醇2000,共同加入60ml生理盐水中,充分溶解后,得溶媒为生理盐水的拓扑替康制剂。 Take 100 mg of topotecan and 40 g of polyethylene glycol 2000, add them together into 60 ml of normal saline, and after fully dissolving, obtain a topotecan preparation in which the solvent is normal saline.
实施例36 Example 36
取100mg拓扑替康及40g聚乙二醇2000,共同加入60ml磷酸盐缓冲液中,充分溶解后,得溶媒为磷酸盐缓冲液的拓扑替康制剂。 Take 100 mg of topotecan and 40 g of polyethylene glycol 2000, add them together into 60 ml of phosphate buffered saline, and after fully dissolving, obtain a topotecan preparation in which the solvent is phosphate buffered saline.
实施例37 Example 37
取100mg拓扑替康及40g聚乙二醇2000,共同加入60ml组织培养液中,充分溶解后,得溶媒为组织培养液的拓扑替康制剂。 Take 100 mg of topotecan and 40 g of polyethylene glycol 2000, add them together into 60 ml of tissue culture medium, and after fully dissolving, obtain a topotecan preparation in which the solvent is tissue culture medium.
实施例38 Example 38
取100mg拓扑替康及40g聚乙二醇2000,共同加入60ml水/乙醇(95:5,v/v)混合溶液中,充分溶解后,得溶媒为水/乙醇混合溶液的拓扑替康制剂。 Take 100mg of topotecan and 40g of polyethylene glycol 2000, and add them together into 60ml of water/ethanol (95:5, v/v) mixed solution. After fully dissolving, a topotecan preparation whose solvent is a water/ethanol mixed solution is obtained.
实施例39-41:包载药物的活性闭环率 Examples 39-41: Active loop closure rate of entrapped drugs
实施例39 Example 39
将6mg拓扑替康与40g聚乙二醇(分子量200,400,1000,2000)共溶于100ml磷酸盐缓冲液中,室温搅拌至全部溶解,调节pH至pH7.4,经HPLC测定药物平衡闭环率,结果见图4。 Co-dissolve 6 mg of topotecan and 40 g of polyethylene glycol (molecular weight 200, 400, 1000, 2000) in 100 ml of phosphate buffer, stir at room temperature until completely dissolved, adjust the pH to pH 7.4, and determine the drug equilibrium closed-loop by HPLC The results are shown in Figure 4.
实施例40 Example 40
将6mg拓扑替康与40g单甲基聚乙二醇(分子量2000,5000)共溶于100ml磷酸盐缓冲液中,室温搅拌至全部溶解,调节pH至pH7.4,经HPLC测定药物平衡闭环率,结果见图4。 Co-dissolve 6 mg of topotecan and 40 g of monomethyl polyethylene glycol (molecular weight 2000, 5000) in 100 ml of phosphate buffer, stir at room temperature until completely dissolved, adjust the pH to pH 7.4, and measure the drug equilibrium loop closure rate by HPLC , the results are shown in Figure 4.
实施例41 Example 41
将5mg羟基喜树碱与40g单甲基聚乙二醇5000共溶于100ml磷酸盐缓冲液中,室温搅拌至全部溶解,调节pH至pH7.4,经HPLC测定药物平衡闭环率,结果见图3。 5 mg of hydroxycamptothecin and 40 g of monomethyl polyethylene glycol 5000 were co-dissolved in 100 ml of phosphate buffer, stirred at room temperature until completely dissolved, adjusted to pH 7.4, and the drug equilibrium ring-closing rate was determined by HPLC, the results are shown in Fig. 3.
实施例42 Example 42
将5mg拓扑替康与40g单甲基聚乙二醇5000共溶于100ml磷酸盐缓冲液中,室温搅拌至全部溶解,调节pH至pH6.4,经HPLC测定药物平衡闭环率,为82.1%。 5 mg of topotecan and 40 g of monomethyl polyethylene glycol 5000 were co-dissolved in 100 ml of phosphate buffer, stirred at room temperature until completely dissolved, and the pH was adjusted to pH 6.4. The drug equilibrium ring-closing rate was determined by HPLC to be 82.1%.
实施例43 Example 43
将5mg拓扑替康与40g单甲基聚乙二醇5000共溶于100ml磷酸盐缓冲液中,室温搅拌至全部溶解,调节pH至pH8.0,经HPLC测定药物平衡闭环率,为22.9%。 5 mg of topotecan and 40 g of monomethyl polyethylene glycol 5000 were co-dissolved in 100 ml of phosphate buffer, stirred at room temperature until completely dissolved, and the pH was adjusted to pH 8.0. The drug equilibrium ring-closing rate was determined by HPLC to be 22.9%.
实施例42:通过简单添加聚乙二醇提升喜树碱类化合物活性闭环率的制剂的S180肉瘤模型药效学评价 Example 42: Pharmacodynamic evaluation of the S180 sarcoma model of a preparation that simply adds polyethylene glycol to increase the active loop closure rate of camptothecin compounds
取生长良好的7-11天的S180瘤种,将瘤组织制成1-2×107/ml细胞悬液,小鼠左侧腋部皮下接种0.2ml/只,记为第0天。接种24小时后随机分笼,每组样品各于第1天、第三天、第五天瘤内注射,每次每鼠0.1ml。第6天处死动物,称体重﹑瘤重,计算各组平均瘤重,按下列公式求出肿瘤抑制率并进行t检验。 Take the well-grown 7-11 day old S180 tumor, make 1-2×10 7 /ml cell suspension from the tumor tissue, inoculate 0.2ml/mouse subcutaneously in the left axilla of the mouse, and record it as day 0. 24 hours after the inoculation, the cages were randomly divided, and the samples of each group were injected intratumorally on the first day, the third day, and the fifth day, each time at 0.1 ml per mouse. On the 6th day, the animals were sacrificed, the body weight and tumor weight were weighed, the average tumor weight of each group was calculated, and the tumor inhibition rate was calculated according to the following formula and t test was performed.
疗效评价标准:肿瘤抑制率<40%为无效;肿瘤抑制率≥40,并经统计学处理p<0.05为有效。所得结果见表1及图5。可见同等剂量下,具有PEG添加剂组要优于单独药物组。 Efficacy evaluation criteria: tumor inhibition rate < 40% is invalid; tumor inhibition rate ≥ 40, and p < 0.05 after statistical processing is effective. The results obtained are shown in Table 1 and Figure 5. It can be seen that at the same dose, the PEG additive group is better than the drug alone group.
表1体内S180肉瘤模型药效学评价 Table 1 Pharmacodynamic evaluation of S180 sarcoma model in vivo
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