WO2012041220A1 - 一种环脂肽化合物或其盐的纯化方法 - Google Patents

一种环脂肽化合物或其盐的纯化方法 Download PDF

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WO2012041220A1
WO2012041220A1 PCT/CN2011/080227 CN2011080227W WO2012041220A1 WO 2012041220 A1 WO2012041220 A1 WO 2012041220A1 CN 2011080227 W CN2011080227 W CN 2011080227W WO 2012041220 A1 WO2012041220 A1 WO 2012041220A1
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Prior art keywords
compound
formula
organic solvent
extract
xad
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PCT/CN2011/080227
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English (en)
French (fr)
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张兆利
刘石东
卓忠浩
季晓铭
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上海天伟生物制药有限公司
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Priority to CA2813335A priority Critical patent/CA2813335A1/en
Priority to US13/877,141 priority patent/US8877777B2/en
Priority to KR1020137010895A priority patent/KR101514904B1/ko
Priority to JP2013530550A priority patent/JP6000255B2/ja
Priority to EP11828116.1A priority patent/EP2623611B1/en
Priority to AU2011307733A priority patent/AU2011307733B2/en
Priority to RU2013118534/04A priority patent/RU2538274C2/ru
Publication of WO2012041220A1 publication Critical patent/WO2012041220A1/zh

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K7/00Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
    • C07K7/50Cyclic peptides containing at least one abnormal peptide link
    • C07K7/54Cyclic peptides containing at least one abnormal peptide link with at least one abnormal peptide link in the ring
    • C07K7/56Cyclic peptides containing at least one abnormal peptide link with at least one abnormal peptide link in the ring the cyclisation not occurring through 2,4-diamino-butanoic acid
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K1/00General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
    • C07K1/14Extraction; Separation; Purification
    • C07K1/16Extraction; Separation; Purification by chromatography
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P21/00Preparation of peptides or proteins
    • C12P21/02Preparation of peptides or proteins having a known sequence of two or more amino acids, e.g. glutathione

Definitions

  • the present invention relates to the field of organic chemistry, and in particular to a method for purifying a polypeptide compound or a salt thereof as shown in Formula I. Background technique
  • Fungal infections have become the main cause of high morbidity and mortality in immunodeficient patients.
  • the incidence of mold infections has increased significantly over the past 20 years.
  • High-risk populations of fungal infections include critically ill patients, surgical patients, and those with HIV infection, blood cancer, and other oncological diseases. Those who have undergone organ transplants are also at high risk for fungal infections.
  • echinococcal is effective in treating infections caused by Candida or Aspergillus.
  • These drugs are represented by caspofungin and micafungin.
  • Echinoglobin inhibits fungi by inhibiting the formation of 1, 3-beta glycosidic bonds, thereby reducing harm to the human body, reducing side effects as much as possible while efficient, so they are in use Safer than traditional antifungal drugs.
  • FK463 (Micafungin) is a compound of formula III which is obtained by enzymatically cleavage of a side chain with a compound of formula I, FR901379 (Mo), to give compound FR179642 ( ⁇ , ) of formula II, which is then chemically modified. of. It can be seen that to obtain high-purity micafungin, the high-purity compound of formula I is
  • EP0431350B1 discloses a process for purifying a compound of the formula I: The fermentation broth is directly extracted with acetone, filtered to remove acetone, washed with ethyl acetate, then extracted with n-butanol, and then the isobutanol phase is dried. Thereafter, the compound of formula I is obtained after the upper silica gel column.
  • the method requires a large amount of solvent, and the method uses silica gel, which is not degraded, and has serious environmental pollution, is not environmentally friendly, and seriously endangers the health of the operator, and is not suitable for industrial mass production.
  • the present invention is directed to a method of purifying a compound of formula I.
  • the present invention provides a method of purifying a compound of formula I or a salt thereof, the method comprising the steps of:
  • the step (3) is that the extract 2 is passed through a chromatography column loaded with a macroporous adsorption resin, or the adsorption resin is directly introduced into an extract containing the compound of the formula I,
  • the extract 2 containing the compound of the formula I is applied to the macroporous adsorption resin by stirring for 5 to 120 minutes; the flow rate is 0.1 to 10 bed volumes per hour.
  • the fermentation broth described in the step (1) includes a bacterium obtained by filtering or centrifuging the fermentation broth.
  • the weight-to-volume ratio of the crude compound of the formula I and the macroporous adsorption resin is 0.1 to 1. 0: 100 (g/ml)
  • the volume percentage of the organic solvent is from 0 to 40%, preferably from 20% to 40%, based on the total volume of the washing liquid.
  • the volume percentage of the organic solvent is 40 to 90%, preferably 40 to 60%, based on the total volume of the eluent.
  • the macroporous adsorption resin is selected from the group consisting of: a nonpolar aromatic adsorption resin obtained by polymerizing styrene and divinylbenzene; or a medium pole having a methacrylate unit structure.
  • a methacrylic acid adsorption resin is selected from the group consisting of: a nonpolar aromatic adsorption resin obtained by polymerizing styrene and divinylbenzene; or a medium pole having a methacrylate unit structure.
  • the adsorption resin is selected from the group consisting of: XAD-1, XAD-2, XAD_3, XAD-4, XAD_5, XAD-16, XAD_16HP, HP-10, HP-20, HP-20ss, HP - 21, HP-30, HP-40, HP-50, SP-825, SP-850, SP_70, SP 700, SP-207, SP207ss, XAD-6, XAD-7, XAD-7HP, XAD-8, HP-2MG, or a mixture thereof.
  • the organic solvent is selected from the group consisting of methanol, ethanol, propanol, butanol, acetone, methyl ethyl ketone, or a mixture thereof. Accordingly, the present invention provides a purification method which does not require a large amount of solvent and does not use silica gel, overcomes the drawbacks existing in the prior art, and at the same time improves the purity of the compound of formula I. DRAWINGS
  • Figure 1 is a HPLC chromatogram of an extract of Example 1 containing a compound of formula I.
  • FIG. 2 is a HPLC chromatogram of the compound of formula I after purification of Example 4. detailed description
  • the method for purifying a compound of formula I comprises the steps of:
  • a compound of the formula I is eluted from the macroporous adsorption resin by using water, an organic solvent, or a mixed solution of an organic solvent and water as an eluent.
  • Step (3) can be carried out by contacting an extract containing the compound of the formula I with a macroporous adsorption resin.
  • the contact may be a.
  • the adsorption resin is directly introduced into the extract containing the compound of the formula I, and then stirred for 5 to 120 minutes; or b.
  • the adsorbent resin is placed in a chromatography apparatus such as a chromatography column to contain 1-10 ⁇
  • the purification method comprises the steps of:
  • An organic solvent is added to the fermentation broth containing the compound of the formula I or a salt thereof for extraction, and the extract 1 is obtained by centrifugation or filtration.
  • the adsorption resin is directly introduced into the extract 2 containing the compound of the formula I, and then stirred for 5 to 120 minutes;
  • step D using water, an organic solvent, or a mixed solution of an organic solvent and water as a washing liquid to wash the macroporous resin remaining in step D;
  • the separation described in the step D includes filtration, centrifugation or the like to separate the resin from the filtrate.
  • the fermentation broth containing the compound of the formula I or a salt thereof in the step (1) can be obtained by a method known in the art, such as, but not limited to, the method described in Example 1 of EP0431350B1. It is obtained by fermentation of Coleophoma empetri. F- 11899 (FERM BP2635).
  • the extraction according to the step (1) means that the fermentation liquid is directly corrected (Article 91)
  • the organic solvent is extracted, or the fermentation liquid is filtered to obtain a bacterial body, and then an organic solvent is added for extraction.
  • the organic solvent is selected from the group consisting of methanol, ethanol, propanol, butanol, acetone, methyl ethyl ketone, or a mixture thereof; preferably methanol, ethanol, acetone or a mixture thereof.
  • the step (2) is to reduce the content of the organic solvent in the extract by extracting the extract 1 obtained in the step (1) by adding water or concentrating in a vacuum, so that the extract 2 is in the extract 2
  • the organic solvent content is 40%, preferably 20%-40% (based on the total volume of the extract 2).
  • the organic solvent described in the steps (4) and (5) is selected from the group consisting of a C 1-4 alcohol, a C 1-4 ketone or a mixture thereof, preferably from methanol, ethanol, propanol, and butyl. Alcohol, acetone, butanone or a mixture thereof.
  • the adsorption resin is selected from the group consisting of: a non-polar aliphatic adsorption resin obtained by polymerizing styrene and divinylbenzene or a medium polarity having a methacrylate unit structure.
  • Methacrylic acid adsorption resin Preferred from: XAD series adsorption resin produced by RohmHaas, USA, and Diai on HP series adsorption resin produced by Mitsubishi Chemical Corporation of Japan.
  • XAD-1 XAD-2, XAD-3, XAD-4, XAD_5, XAD-6, XAD-7, XAD-7HP, XAD-8, XAD-16, XAD-16HP, HP- 10, HP-20, HP-20ss, HP-21, HP-30, HP-40, HP-50, HP-2MG, SP-825, SP_850, SP-70, SP-700, SP207, SP207ss or their mixture.
  • HP20, XAD-16, or XAD-16HP, or SP207 o
  • the organic solvent content in the washing liquid is 40%, preferably 20% to 40%.
  • the content of the organic solvent in the elution buffer is 40-90%, preferably 40-60%.
  • compounds of formula I or “compounds of formula I” are used interchangeably and refer to a compound having the formula: or a pharmaceutically acceptable salt thereof:
  • pharmaceutically acceptable salt refers to a salt formed from a base selected from the group consisting of inorganic bases such as sodium, potassium, magnesium, calcium, aluminum, and the like; and organic bases such as methylamine, ethylamine, monoethanolamine.
  • purity of a compound as shown in Formula I As used herein, “purity of a compound as shown in Formula I", “purity of a compound of formula I” or “HPLC purity of a compound of formula I” are used interchangeably and refer to the high performance liquid chromatography (HPLC) provided by the present invention.
  • HPLC high performance liquid chromatography
  • loading refers to the process of contacting a crude product containing a compound of formula I with a macroporous adsorption resin to adsorb a compound of formula I onto a macroporous adsorption resin.
  • the contacting includes directly feeding the macroporous adsorption resin into the solution and then agitating the adsorption; and further loading the macroporous adsorption resin into the chromatography device to flow the solution through the chromatography column.
  • Washing macroporous adsorption resin means passing a suitable buffer in or on the macroporous adsorption resin.
  • wash buffer refers to a buffer used to wash (primarily organic phase) macroporous adsorption resin prior to elution of the target compound of formula I.
  • the wash buffer and the loading buffer can be of the same polarity, but this is not required.
  • the "eluting" of the molecule from the macroporous adsorption resin means removing the molecule from the macroporous adsorption resin by changing the polarity of the buffer around the macroporous adsorption resin. This polarity enables the buffer to compete with the molecule for macroporous adsorption. Adsorption site on the resin. Correction page (Article 91) As used herein, "elution buffer” is used to elute the target compound of formula I from the solid phase. The elution buffer elutes the target compound of formula I from the macroporous adsorption resin.
  • “Purifying" a compound of formula I from a composition comprising a compound of the formula I and one or more non-target compounds means increasing the composition of the composition by removing (completely or partially) at least one non-target compound from the composition. The purity of the compound I.
  • the present invention provides a novel and inexpensive method for purifying cyclolipopeptide compounds, particularly echinocandin compounds.
  • the purification step of the method provided by the invention has the characteristics of short route, mild condition, high purification yield, simple treatment, small environmental pollution, etc., which greatly reduces the process operation and equipment requirements, and reduces the Cost of production.
  • the method provided by the invention can obtain a relatively stable target product, is beneficial to the quality control of the final product, and is advantageous for industrialized large production.
  • the target product produced by the method provided by the present invention can fully satisfy the requirement for conversion to the compound I I. It is convenient for large-scale production of compound hydrazine, and even the final product compound III.
  • the invention is further illustrated below in conjunction with specific embodiments. It is to be understood that the examples are not intended to limit the scope of the invention.
  • the experimental methods in which the specific conditions are not indicated in the following examples are usually carried out according to conventional conditions or according to the conditions recommended by the manufacturer. All percentages, ratios, ratios, or parts are by weight unless otherwise indicated.
  • the unit of weight percent by volume in the present invention is well known to those skilled in the art and, for example, refers to the weight of the solute in a 100 ml solution.
  • Example 1 of EP0431350B1 2200 L of the fermentation broth containing the compound of formula I is obtained, and 650 kg of wet cells are obtained by filtration, 65 kg of which is taken, and 100 kg of ethanol is added for immersion extraction, and the filter cake is filtered by a plate frame, and the prepared cake is prepared.
  • the purity of the HPLC is 74. 08 ° /
  • the content of the compound of the formula I is 0.11 g / liter
  • HPLC purity is 74. 08 ° /.
  • HPLC chromatograms are shown in Figure 1 and Table 1.
  • the extract 2 containing the compound of the formula I obtained in the previous step was applied to a chromatography column equipped with 550 ml of HP20ss resin at a flow rate of 3 bed volumes per hour. After the loading was completed, 2 column volumes were washed with 33% ethanol, and the washing flow rate was 1 bed volume per hour. After washing, 1800 ml of 60% ethanol was used as an eluent, and the elution flow rate was 1 bed volume per hour. The fraction containing the compound of formula I was collected and mixed. The collected liquid was determined by HPLC, wherein the content of the compound of formula I was 5.2 g (yield 94.5%), the purity was 90.3%, and the HPLC chromatograms are shown in Fig. 2 and Table 2. Table 1
  • the extract 2 containing the compound of the formula I obtained in the previous step was applied to a column packed with 700 ml of XAD-16 resin at a flow rate of 1 bed volume per hour. After the loading was completed, 2 column volumes were washed with 40% methanol, and the washing flow rate was 1 bed volume per hour. After washing, 1800 ml of 50% methanol was used as an eluent, and the elution flow rate was 1 bed volume per hour. The fraction containing the compound of formula I was collected and mixed. The content of the compound of formula I is 4. 7 g (recovery rate 92.2%), and the purity is 89. 2%.
  • the extract 2 containing the compound of the formula I obtained in the previous step was placed in a 100 L plastic white bucket, 1000 ml of XAD _ 16HP resin was added, stirred at room temperature for 120 minutes and then the filtrate containing the resin was poured onto a Buchner funnel coated with filter paper. Filtration, the filtrate is discarded, the resin is charged into the column, washed with 2000 ml of 20% acetone, washed with 60% acetone, and the fraction containing the compound of formula I is collected, and the collected liquid is detected by HPLC, wherein the compound of formula I 0 ⁇ 1. 75 ⁇ (yield 85. 8%), purity 90.0%.
  • the extract 2 containing the compound of the formula I obtained in the previous step was applied to a column packed with 200 mL of SP207 resin at a flow rate of 3 bed volumes per hour. After the loading was completed, 2 column volumes were washed with 20% ethanol, and the washing flow rate was 1 bed volume per hour. After washing, 1 L of 40% ethanol was used as an eluent, and the elution flow rate was 1 bed volume per hour. The fraction containing the compound of formula I was collected and mixed. 5% ⁇ The content of the compound I was 1. 94 g (yield 88.2%), the purity was 89.5%.
  • the crude product 2 containing the compound of the formula I obtained in the previous step was applied to a column packed with 20 L of HP20 resin at a flow rate of 10 bed volumes per hour. After the loading was completed, 2 column volumes were washed with 40% ethanol, and the washing flow rate was 1 bed volume per hour. After washing, 60 L of 50% ethanol was used as an eluent, and the elution flow rate was 1 bed volume per hour. The fraction containing the compound of formula I was collected and mixed. 4% ⁇ The content of the formula I was 145. 2 grams (yield 91.0%), the purity was 90.4%.
  • Example 1 50 L of the extract 1 of the compound of the formula I obtained in Example 1 was obtained, and 5. 5 g of the compound of the formula I was mixed, and the ethanol concentration was diluted to 10% with purified water to obtain an extract 2 containing the compound of the formula I.
  • the extract 2 containing the compound of the formula I obtained in the previous step was applied to a column packed with 550 ml of HP20 resin at a flow rate of 3 bed volumes per hour. After the loading was completed, 2 column volumes were washed with 10% ethanol, and the washing flow rate was 1 bed volume per hour. After washing, 1800 ml of ethanol was used as an eluent, and the elution flow rate was 1 bed volume per hour. The fraction containing the compound of formula I was collected and mixed. The content of the compound of formula I is 5.15 g (yield 93.6%), and the purity is 85.4%. Comparative Example 1
  • the extract 2 containing the compound of the formula I obtained in the previous step was applied to a column packed with 550 ml of HP20 resin at a flow rate of 10 bed volumes per hour. After the loading was completed, 2 column volumes were washed with 45% ethanol, and the washing flow rate was 1 bed volume per hour. After washing, 1800 ml of 50% ethanol was used as an eluent, and the elution flow rate was 1 bed volume per hour. The aliquot of the compound of the formula I was collected and mixed, and the content of the compound of the formula I was 2.13 g (yield 38.7%), and the purity was 90.4%. Comparative Example 2
  • the extract 2 containing the compound of the formula I obtained in the previous step was applied to a column packed with 550 ml of HP20 resin at a flow rate of 3 bed volumes per hour. After the end of the loading, 2 column volumes were washed with 33% ethanol, and the washing flow rate was 1 bed volume per hour. After washing, 1800 ml of 60% ethanol was used as an eluent, and the elution flow rate was 1 bed volume per hour. The fraction containing the compound of formula I was collected and mixed. The content of the compound of formula I is 1. 08 g (yield 19.6%), and the purity is 85.4%.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the essence of the present invention.

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Description

一种环脂肽化合物或其盐的纯化方法 技术领域
本发明涉及有机化学领域, 尤其涉及一种如式 I所示的多肽化合物或其 盐的纯化方法。 背景技术
真菌感染己经成为免疫缺陷病人发病率和死亡率居高不下的主要原因。 在过去的 20 年里, 霉菌感染的发病率显著增加。 真菌感染的高危人群包括 重症病人, 外科病人以及那些患有 HIV感染, 血癌和其它肿瘤疾病的病人。 那些经过器官移植的病人同样是真菌感染的高危人群。
棘球白素作为一类新的抗真菌药物, 在治疗由念珠菌或曲霉引起的感染 方面效果良好。 这类药物又以卡泊芬净和米卡芬净为代表。 棘球白素类药物 通过抑制 1, 3- β糖苷键的形成来抑制真菌, 从而更好地减小了对人体的伤 害, 在高效的同时尽可能的降低了副作用, 因此它们在使用过程中比传统抗 真菌药更安全。
FK463 (米卡芬净)是如式 III所示的化合物,它是以式 I化合物 FR901379 ( Mo) 为前体通过酶解掉侧链得到式 II化合物 FR179642 ( Μ, ) , 然后经过化 学修饰得到的。 可见, 要得到高纯度的米卡芬净, 高纯度高的式 I化合物是 关
Figure imgf000003_0001
- 1 - 更正页 (细则第 91条)
III
(米卡 芬净)
EP0431350B1 公开了一种纯化式 I化合物的方法: 将发酵液直接用丙酮 抽提,过滤浓缩除去丙酮后用乙酸乙酯洗涤,然后用正丁醇萃取的方法得到, 然后将异丁醇相浓干后,上硅胶柱后得到式 I化合物。该方法需要大量溶剂, 同时该方法使用了硅胶这种不降解, 对环境污染严重的物质, 不利于环保, 且严重危害操作人员的健康, 不适合工业化大规模生产。
因此, 本领域急需找到一种不需要大量溶媒, 不使用硅胶的纯化方法, 克服上述现有技术中存在的缺陷, 同时提高式 I化合物的纯度。 发明内容
本发明旨在提供一种纯化式 I化合物的方法。 本发明提供了一种如式 I化合物或其盐的纯化方法,所述的方法包括步骤:
更正页 (细则第 91条) (1)将含有式 I化合物或其盐的发酵液和有机溶剂混合, 进行抽提, 过滤 或离心后得到抽提液 1;
(2) 将抽提液 1 进行稀释或真空浓缩, 降低有机溶剂含量, 得到抽提 液 2;
(3) 将抽提液 2上样至大孔吸附树脂;
(4) 将水、 有机溶剂、 或有机溶剂和水的混合溶液作为洗涤液洗涤大 孔吸附树脂; 和
(5)将水、 有机溶剂、 或有机溶剂和水的混合溶液作为洗脱液, 将式 I 化合物从大孔吸附树脂上洗脱下来;
Figure imgf000005_0001
在本发明提供的纯化方法中, 所述步骤 (3)是将抽提液 2流过装载有大孔 吸附树脂的层析柱, 或将吸附树脂直接投入含有式 I化合物的抽提液中, 搅拌 5-120分钟, 使含有式 I化合物的抽提液 2上样至大孔吸附树脂; 所述的流过 速度为每小时 0.1— 10个柱床体积。
在本发明提供的纯化方法中, 步骤 (1) 中所述的发酵液包括将发酵液过滤 或离心后得到的菌体。
在本发明提供的纯化方法中, 步骤 (2) 中, 以抽提液 2的总体积计, 其中
更正页 (细则第 91条) 有机溶剂的体积百分比为 0-40 %。
在本发明提供的纯化方法中, 步骤 (3 ) 中, 式 I化合物粗品和大孔吸附树 脂的重量体积比为 0. 1— 1. 0: 100 ( g/ml )
在本发明提供的纯化方法中, 步骤 (4 ) 中, 以洗涤液的总体积计, 其中有 机溶剂的体积百分比为 0-40%, 优选 20%-40%。
在本发明提供的纯化方法中, 步骤 (5 ) 中, 以洗脱液的总体积计, 其中有 机溶剂的体积百分比为 40- 90 %, 优选 40-60%。
在本发明提供的纯化方法中, 所述的大孔吸附树脂选自: 由苯乙烯与二乙 烯苯聚合而成的非极性的芳香族吸附树脂; 或具有甲基丙烯酸酯单元结构的中 等极性的甲基丙烯酸吸附树脂。
在另一优选例中, 所述的吸附树脂选自: XAD- 1、 XAD- 2、 XAD_3、 XAD - 4、 XAD_5、 XAD- 16、 XAD_16HP、 HP- 10、 HP- 20、 HP- 20ss、 HP- 21、 HP- 30、 HP- 40、 HP- 50、 SP- 825、 SP- 850、 SP_70、 SP 700、 SP- 207、 SP207ss、 XAD- 6、 XAD- 7、 XAD-7HP、 XAD-8、 HP-2MG、 或它们的混合物。
在本发明提供的纯化方法中, 所述的有机溶剂选自甲醇、 乙醇、 丙醇、 丁 醇、 丙酮、 丁酮、 或它们的混合物。 据此, 本发明提供了一种不需要大量溶媒, 不使用硅胶的纯化方法, 克 服了现有技术中存在的缺陷, 同时提高了式 I化合物的纯度。 附图说明
图 1 为实施例 1含式 I化合物的抽提液的 HPLC图谱。
图 2 为实施例 4纯化后式 I化合物的 HPLC图谱。 具体实施方式
经过深入的研究和反复的探索, 在经历了很多失败后, 发明人发现了一 种简便的纯化式 I化合物的方法, 在此基础上完成了本发明。 本发明提供的式 I化合物的纯化方法包括步骤:
( 1 )在含有式 I化合物或其盐的发酵液中加入有机溶剂进行抽提, 过滤或 离心后得到抽提液 1。
-4 - 更正页 (细则第 91条) ( 2 ) 将抽提液 1 进行稀释或真空浓缩, 降低有机溶剂含量, 得到抽提 液 2。
( 3 ) 将抽提液 2上样至大孔吸附树脂。
( 4 ) 将水、 有机溶剂、 或有机溶剂和水的混合溶液作为洗涤液洗涤大 孔吸附树脂。
( 5 )将水、 有机溶剂、 或有机溶剂和水的混合溶液作为洗脱液, 将式 I 化合物从大孔吸附树脂上洗脱下来。
步骤(3 )可以通过将含有式 I化合物的抽提液与大孔吸附树脂接触实现。 所述的接触可以是 a.将吸附树脂直接投入含有式 I化合物的抽提液中, 然后 搅拌 5-120分钟; 或者是 b.将吸附树脂装在层析柱等层析装置中, 使含有式 I化合物的抽提液流过层析柱, 流速在每小时 0. 1-10个柱床体积。 在本发明的一个实施例中, 所述的纯化方法包括步骤:
A. 在含有式 I化合物或其盐的发酵液中加入有机溶剂进行抽提, 离心或过 滤后得到抽提液 1。
B. 将抽提液 1进行稀释或真空浓缩, 降低有机溶剂含量, 得到抽提液 2
C. 将吸附树脂直接投入含有式 I化合物的抽提液 2中, 然后搅拌 5-120 分钟;
D. 使含有式 I化合物的抽提液 2与所述树脂分离;
E. 将水、 有机溶剂、 或有机溶剂和水的混合溶液作为洗涤液洗涤步骤 D 中留下的大孔吸附树脂;
F. 将水、 有机溶剂、 或有机溶剂和水的混合溶液作为洗脱液对步骤 E 中得到的洗涤过的吸附树脂进行洗脱, 然后收集含有式 I化合物的洗脱液, 得到纯化的式 I化合物。
步骤 D中所述的分离包括过滤、 离心等方法使树脂与滤液相分离。 在本发明提供的纯化方法中, 步骤 (1 ) 所述含有式 I化合物或其盐的发 酵液可以使用本领域现有的方法得到, 例如但不限于, 参照 EP0431350B1实施 例 1 中描述的方法, 通过 Coleophoma empetri. F- 11899 (FERM BP2635)发 酵获得。
在本发明提供的纯化方法中, 步骤 (1 ) 所述的抽提是指, 将发酵液直 更正页 (细则第 91条) 接加入有机溶剂抽提, 或者是将发酵液过滤后得到菌体, 再加入有机溶剂进 行抽提。 所述有机溶剂选自: 甲醇、 乙醇、 丙醇、 丁醇、 丙酮、 丁酮、 或它们 的混合物; 优选甲醇、 乙醇、 丙酮或它们的混合物。
在本发明提供的纯化方法中, 步骤 (2 ) 是将步骤 (1 ) 得到的抽提液 1 通过加水稀释或真空浓缩的方式, 降低抽提液中有机溶剂的含量, 使得抽提 液 2中的有机溶剂含量 40%, 优选 20%-40% (以抽提液 2总体积计) 。
在本发明提供的纯化方法中,步骤(4 )和(5 )所述的有机溶剂选自 C 1-4 醇、 C 1-4酮或它们的混合物, 优选自甲醇、 乙醇、 丙醇、 丁醇、 丙酮、 丁酮 或它们的混合物。
在本发明提供的所有纯化方法中, 所述的吸附树脂选自: 由苯乙烯与二 乙烯苯聚合而成的非极性的脂肪族吸附树脂或者具有甲基丙烯酸酯单元结 构的中等极性的甲基丙烯酸吸附树脂。 优选自: 美国罗门哈斯公司 ( RohmHaas )生产的 XAD系列吸附树脂, 及日本三菱化学公司生产的 Diai on HP系列吸附树脂。更优地,选自 XAD- 1、 XAD- 2、 XAD-3、 XAD- 4、 XAD_5、 XAD- 6、 XAD - 7、 XAD - 7HP、 XAD - 8、 XAD - 16、 XAD - 16HP、 HP - 10、 HP - 20、 HP - 20ss、 HP - 21、 HP - 30、 HP - 40、 HP - 50、 HP - 2MG、 SP - 825、 SP_850、 SP - 70、 SP - 700、 SP207、 SP207ss或它们的混合物。 最优地, 选自 HP20、 XAD— 16、 或 XAD— 16HP、 或 SP207 o
在本发明提供的纯化方法的步骤 (4 ) 中, 所述洗涤液中有机溶剂含量 40%, 优选 20%-40%。
在本发明提供的纯化方法的步骤 (5 ) 中, 所述洗脱缓冲液中有机溶剂 的含量 40-90%, 优选 40-60%。 如本文所用, "如式 I所示化合物" 或 "式 I化合物" 可以互换使用, 都是指具有以下结构式的化合物或其药学上可接受的盐:
- 6- 更正页 (细则第 91条)
Figure imgf000009_0001
如本文所用, "药学上可接受的盐 "是指同选自下述碱形成的盐类: 无机 碱如钠、 钾、 镁、 钙、 铝等; 有机碱如甲胺、 乙胺、 单乙醇胺、 二乙醇胺、 三 乙醇胺、 环己醇胺、 赖氨酸、 鸟氨酸等, 或其它药学上可接受的盐有关的碱。
如本文所用, "如式 I所示化合物的纯度"、 "式 I化合物的纯度 "或"式 I 化合物的 HPLC 纯度"可以互换使用, 都是指在本发明提供的高效液相色谱 ( HPLC ) 检测条件下, 测得的式 I化合物的峰面积和所有峰的峰面积之和的百 分比。
如本文所用, "上样" 是指将含有式 I化合物的粗品的抽提液和大孔吸 附树脂接触, 使式 I化合物吸附到大孔吸附树脂上的过程。 所述的接触包括 将大孔吸附树脂直接投入溶液中, 然后搅拌吸附; 还有将大孔吸附树脂装入 层析装置中, 使溶液流过层析柱。
"洗涤" 大孔吸附树脂, 指使合适的缓冲液在大孔吸附树脂中或上通 过。
如本文所用, "洗涤缓冲液 "指在洗脱目标式 I化合物之前, 用来洗涤 (主要是有机相) 大孔吸附树脂的缓冲液。 方便的, 洗涤缓冲液和加样缓冲 液可以是同一极性, 但这不是必须的。
将分子从大孔吸附树脂上 "洗脱" 下来, 指通过改变大孔吸附树脂周围 的缓冲液极性从大孔吸附树脂上除下该分子, 该极性能使缓冲液与分子竞争 大孔吸附树脂上的吸附位点。 更正页 (细则第 91条) 如本文所用, "洗脱缓冲液"用来将目标式 I化合物从固相上洗脱下来。 洗脱缓冲液能使目标式 I化合物从大孔吸附树脂上洗脱下来。
从含有目标式 I化合物和一种或多种非目标化合物的组合物中 "纯化" 式 I化合物, 指通过从组合物中 (完全或部分的) 除去至少一种非目标化合 物来提高组合物中式 I化合物的纯度。 本发明提到的上述特征, 或实施例提到的特征可以任意组合。 本案说明书 所揭示的所有特征可与任何组合物形式并用, 说明书中所揭示的各个特征, 可 以任何可提供相同、 均等或相似目的的替代性特征取代。 因此除有特别说明, 所揭示的特征仅为均等或相似特征的一般性例子。
本发明的主要优点在于:
1、 本发明提供了一种成本低廉的纯化环脂肽化合物, 特别是棘白菌素 类化合物的新方法。
2、 本发明提供的方法所经过的纯化步骤具有路线短、 条件温和、 纯化 收率高、 处理简单、 对环境污染小等特点, 在很大程度上减轻了工艺操作和 对设备要求, 降低了生产成本。
3、 本发明提供的方法能得到较稳定的目标产物, 有利于终产品的质量 控制, 有利于工业化大生产。
4、 本发明提供的方法生产的目标产物完全可以满足向化合物 I I转化的 要求。 便于进行大规模生产化合物 Π, 乃至最终产物化合物 III。 下面结合具体实施例, 进一步阐述本发明。 应理解, 这些实施例仅用于 说明本发明而不用于限制本发明的范围。 下列实施例中未注明具体条件的实 验方法, 通常按照常规条件或按照制造厂商所建议的条件。 除非另外说明, 否则所有的百分数、 比率、 比例、 或份数按重量计。
本发明中的重量体积百分比中的单位是本领域技术人员所熟知的, 例如 是指在 100毫升的溶液中溶质的重量。
除非另行定义, 文中所使用的所有专业与科学用语与本领域熟练人员所 熟悉的意义相同。 此外, 任何与所记载内容相似或均等的方法及材料皆可应 更正页 (细则第 91条) 用于本发明方法中。 文中所述的较佳实施方法与材料仅作示范之用。 下述实施例中式 I化合物 HPLC检测所用的方法:
在 Waters 分析性 HPLC 体系上进行分析。 反相 HPLC 分析用于测定 FR901379 , PneumocandinB。及其它类似物。 反相分析采用 CALES IL 0DS色谱 柱 (粒径 5 m, 4. 6mmi . d X 250mm ) , 并且保持在 35 °C。 以 50%乙腈 /0. 5%磷 酸二氢铵水溶液作流动相, 流速为 lml/分钟, 并在 210nm下 UV检测。 实施例 1
参照 EP0431350B1实施例 1中描述的方法, 获得 2200L含式 I化合物的 发酵液, 过滤得到湿菌体 650kg, 取其中 65kg, 加入 100L 乙醇浸泡抽提, 用板框过滤, 洗涤滤饼, 制备得到含有式 I化合物的抽提液 1 160L, 其中式 I化合物的含量为 0. 1 1 克 /升, HPLC纯度为 74. 08°/。, HPLC 图谱参见附图 1 和表 1。
取 50L含式 I化合物的抽提液 1, 含式 I化合物共 5. 5克, 用纯化水将 其乙醇浓度稀释至 33%, 得 100L的含式 I化合物的抽提液 2。
将上步得到的含式 I化合物的抽提液 2上样到一个装有 550ml HP20ss 树脂的层析柱, 上样流速为每小时 3个柱床体积。 上样结束后, 以 33%乙醇 洗涤 2个柱体积, 洗涤流速为每小时 1个柱床体积。 洗涤完毕后, 以 1800ml 60%乙醇为洗脱液, 洗脱流速为每小时 1个柱床体积, 收集含有式 I化合物 的部分并混勾。 收集液经 HPLC检测, 其中的式 I化合物含量为 5. 2克 (收 率 94. 5% ) , 纯度为 90. 3%, HPLC图谱参见附图 2和表 2。 表 1
Figure imgf000011_0001
—9— 更正页 (细则第 91条) 7 12. 473 32176 2002 1. 14
8 13. 444 34705 1437 1. 23
9 14. 137 316897 16282 11. 25
10 15. 273 33033 1676 1. 17
11 16. 332 40054 1779 1. 42
12 23. 203 59506 2471 2. 11
表 2
Figure imgf000012_0001
实施例 2
参照 EP0431350B1实施例 1中描述的方法, 获得 2200L含式 I化合物的 发酵液, 加入相同体积的甲醇浸泡抽提, 然后过滤, 制备得到含有式 I化合 物的抽提液 1, 其中式 I化合物的含量为 0. 051克 /升, HPLC纯度为 74. 5% 取 100L式 I化合物的抽提液 1, 含式 I化合物共 5. 1克, 用纯化水将其甲醇 浓度稀释至 40%, 得 200L的含式 I化合物的抽提液 2
将上步得到的含式 I化合物的抽提液 2上样到一个装有 700ml XAD - 16 树脂的层析柱, 上样流速为每小时 1个柱床体积。 上样结束后, 以 40%甲醇 洗涤 2个柱体积, 洗涤流速为每小时 1个柱床体积。 洗涤完毕后, 以 1800ml 50%甲醇为洗脱液, 洗脱流速为每小时 1 个柱床体积, 收集含有式 I化合物 的部分并混匀。 收集液经 HPLC检测, 其中的式 I化合物含量为 4. 7克 (收 率 92. 2%) , 纯度为 89. 2%
更正页 (细则第 91条) 实施例 3
参照 EP0431350B 1实施例 1中描述的方法, 获得 2200L含式 I化合物的 发酵液, 加入相同体积的丙酮浸泡抽提, 然后过滤, 制备得到含有式 I化合 物的抽提液 1, 其中式 I化合物的含量为 0. 051克 /升, HPLC纯度为 74. 5%。 取 40L式 I化合物的抽提液 1, 含式 I化合物共 2. 04克, 用纯化水将其丙酮 浓度稀释至 20%, 得到 80L含式 I化合物的抽提液 2。
将上步得到的含式 I化合物的抽提液 2装到一个 100L塑料白桶中, 加 入 1000mlXAD _ 16HP树脂, 于室温下搅拌 120分钟然后将含有树脂的滤液倾 倒于铺有滤纸的布氏漏斗中过滤, 滤液弃去, 树脂装入层析柱中, 以 2000ml 20%丙酮洗涤, 洗涤完毕以 60%丙酮洗脱, 收集含有式 I化合物的部分, 收 集液经 HPLC检测,其中的式 I化合物为 1. 75克(收率 85. 8% ),纯度 90. 0%。 实施例 4
取 20L实施例 1获得的含式 I化合物的抽提液 1, 含式 I化合物共 2. 2 克, 真它浓缩将其乙醇浓度降至 20%, 得 8L含式 I化合物的抽提液 2。
将上步得到的含式 I 化合物的抽提液 2上样到一个装有 200mL SP207 树脂的层析柱, 上样流速为每小时 3个柱床体积。 上样结束后, 以 20%乙醇 洗涤 2个柱体积,洗涤流速为每小时 1个柱床体积。洗涤完毕后, 以 1L 40% 乙醇为洗脱液, 洗脱流速为每小时 1个柱床体积, 收集含有式 I化合物的部 分并混勾。 收集液经 HPLC检测, 其中的式 I 化合物含量为 1. 94 克 (收率 88. 2% ) , 纯度为 89. 5%。 实施例 5
取 1450L实施例 1获得的含式 I化合物的抽提液 1,含式 I化合物共 159. 5 克, 用纯化水将其乙醇浓度稀释至 40%, 得 2950L含式 I化合物的抽提液 2。
将上步得到的含式 I化合物的粗品 2上样到一个装有 20L HP20树脂的 层析柱, 上样流速为每小时 10个柱床体积。 上样结束后, 以 40%乙醇洗涤 2 个柱体积, 洗涤流速为每小时 1个柱床体积。 洗涤完毕后, 以 60L 50%乙醇 为洗脱液, 洗脱流速为每小时 1个柱床体积, 收集含有式 I化合物的部分并 混匀。收集液经 HPLC检测,其中的式 I化合物含量为 145. 2克(收率 91. 0%), 纯度为 90. 4%。
- 1 1 - 更正页 (细则第 91条) 实施例 6
取 50L实施例 1获得的含式 I化合物的抽提液 1, 含式 I化合物共 5. 5 克, 用纯化水将其乙醇浓度稀释至 10%, 得含式 I化合物的抽提液 2。
将上步得到的含式 I化合物的抽提液 2上样到一个装有 550ml HP20树 脂的层析柱, 上样流速为每小时 3个柱床体积。 上样结束后, 以 10%乙醇洗 涤 2 个柱体积, 洗涤流速为每小时 1 个柱床体积。 洗涤完毕后, 以 1800ml 乙醇为洗脱液, 洗脱流速为每小时 1个柱床体积, 收集含有式 I化合物的部 分并混匀。 收集液经 HPLC检测, 其中的式 I 化合物含量为 5. 15 克 (收率 93. 6% ) , 纯度为 85. 4%。 对比实施例 1
取 50L实施例 1获得的含式 I化合物的抽提液 1, 含式 I化合物共 5. 5 克, 用纯化水将其乙醇浓度稀释至 32%, 得 103L含式 I化合物的抽提液 2。
将上步得到的含式 I化合物的抽提液 2上样到一个装有 550ml HP20树 脂的层析柱, 上样流速为每小时 10个柱床体积。 上样结束后, 以 45%乙醇洗 涤 2个柱体积, 洗涤流速为每小时 1 个柱床体积。 洗涤完毕后, 以 1800ml 50%乙醇为洗脱液, 洗脱流速为每小时 1个柱床体积。 收集洗脱液中式 I化 合物的部分并混匀, 经 HPLC检测, 其中的式 I化合物含量为 2. 13克 (收率 38. 7% ) , 纯度为 90. 4%o 对比实施例 2
取 50L实施例 1获得的含式 I化合物的抽提液 1, 含式 I化合物共 5. 5 克, 用纯化水将其乙醇浓度稀释至 45%, 得 103L含式 I化合物的抽提液 2。
将上步得到的含式 I化合物的抽提液 2上样到一个装有 550ml HP20树 脂的层析柱, 上样流速为每小时 3个柱床体积。 上样结束后, 以 33%乙醇洗 涤 2个柱体积,洗涤流速为每小时 1个柱床体积。洗涤完毕后,以 1800ml 60% 乙醇为洗脱液, 洗脱流速为每小时 1个柱床体积, 收集洗脱液中含有式 I化 合物的部分并混匀。 收集液经 HPLC检测, 其中的式 I化合物含量为 1. 08克 (收率 19. 6% ) , 纯度为 85. 4%。 以上所述仅为本发明的较佳实施例而已, 并非用以限定本发明的实质技
- 12 - 更正页 (细则第 91条) 术内容范围, 本发明的实质技术内容是广义地定义于申请的权利要求范围 中, 任何他人完成的技术实体或方法, 若是与申请的权利要求范围所定义的 完全相同,也或是一种等效的变更,均将被视为涵盖于该权利要求范围之中。
- 13 - 更正页 (细则第 91条)

Claims

^ m ^
1.一种如式 I化合物或其盐的纯化方法, 其特征在于, 所述的方法包括步 骤:
(1)将含有式 I化合物或其盐的发酵液和有机溶剂混合, 进行抽提, 过滤 或离心后得到抽提液 1;
(2) 将抽提液 1 进行稀释或真空浓缩, 降低有机溶剂含量, 得到抽提 液 2;
(3) 将抽提液 2上样至大孔吸附树脂;
(4) 将水、 有机溶剂、 或有机溶剂和水的混合溶液作为洗涤液洗涤大 孔吸附树脂; 和
(5)将水、 有机溶剂、 或有机溶剂和水的混合溶液作为洗脱液, 将式 I 化合物从大孔吸附树脂上洗脱下来;
Figure imgf000016_0001
2.如权利要求 1所述的纯化方法, 其特征在于, 所述步骤 (3)是将抽提液 2流过装载有大孔吸附树脂的层析柱, 或将吸附树脂直接投入含有式 I化合物 的抽提液中, 搅拌 5-120分钟, 使含有式 I化合物的抽提液 2上样至大孔吸附
-14- 更正页 (细则第 91条) 树脂。
3.如权利要求 2所述的纯化方法, 其特征在于, 所述的流过速度为每小时 0. 1一 10个柱床体积。
4. 如权利要求 1 所述的纯化方法, 其特征在于, 步骤 (1 ) 中所述的发酵 液包括将发酵液过滤或离心后得到的菌体。
5.如权利要求 1所述的纯化方法, 其特征在于, 步骤 (2 ) 中, 以抽提液 2 的总体积计, 其中有机溶剂的体积百分比为 0-40 %。
6.如权利要求 1所述的纯化方法, 其特征在于, 步骤 (3 ) 中, 式 I化合物 粗品和大孔吸附树脂的重量体积比为 0. 1— 1. 0: 100 ( g/ml ) 。
7. 如权利要求 1所述的纯化方法, 其特征在于, 步骤 (4 ) 中, 以洗涤液 的总体积计, 其中有机溶剂的体积百分比为 0-40 %, 优选 20%-40%。
8.如权利要求 1所述的纯化方法, 其特征在于, 步骤 (5 ) 中, 以洗脱液的 总体积计, 其中有机溶剂的体积百分比为 40-90 %, 优选 40-60%。
9. 如权利要求 1一 8任一所述的纯化方法, 其特征在于, 所述的大孔吸附 树脂选自: 由苯乙烯与二乙烯苯聚合而成的非极性的芳香族吸附树脂; 或具有 甲基丙烯酸酯单元结构的中等极性的甲基丙烯酸吸附树脂。
10. 如权利要求 9所述的纯化方法, 其特征在于, 所述的吸附树脂选自:
XAD- 1、 XAD- 2、 XAD- 3、 XAD- 4、 XAD- 5、 XAD_16、 XAD- 16HP、 HP- 10、 HP- 20、 HP- 20ss、 HP- 21、 HP- 30、 HP- 40、 HP- 50、 SP- 825、 SP- 850、 SP- 70、 SP_700、 SP- 207、 SP207ss、 XAD- 6、 XAD- 7、 XAD- 7HP、 XAD_8、 HP- 2MG、 或它们的混合物。
11. 如权利要求 1一 8任一所述的纯化方法, 其特征在于, 所述的有机溶剂 选自甲醇、 乙醇、 丙醇、 丁醇、 丙酮、 丁酮、 或它们的混合物。
- 15 - 更正页 (细则第 91条)
PCT/CN2011/080227 2010-09-30 2011-09-27 一种环脂肽化合物或其盐的纯化方法 WO2012041220A1 (zh)

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CN103387975A (zh) * 2012-05-11 2013-11-13 上海天伟生物制药有限公司 一种固定化环脂肽酰基转移酶及其制备方法和用途
CN103483427A (zh) * 2012-06-09 2014-01-01 浙江海正药业股份有限公司 一种棘白菌素类化合物的纯化方法
CN104447961B (zh) * 2013-09-13 2018-05-15 浙江震元制药有限公司 棘白菌素b母核的提取方法
CN103965298B (zh) * 2014-05-23 2016-08-10 浙江海正药业股份有限公司 一种阿尼芬净的纯化方法
CN110540511B (zh) * 2018-05-29 2024-05-03 上海凯赛生物技术股份有限公司 一种二元酸胺盐的提取纯化方法
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