CN106565820A - Method for preparing high-purity sample of vancomycin hydrochloride impurities 3 and 8 - Google Patents

Method for preparing high-purity sample of vancomycin hydrochloride impurities 3 and 8 Download PDF

Info

Publication number
CN106565820A
CN106565820A CN201510657005.6A CN201510657005A CN106565820A CN 106565820 A CN106565820 A CN 106565820A CN 201510657005 A CN201510657005 A CN 201510657005A CN 106565820 A CN106565820 A CN 106565820A
Authority
CN
China
Prior art keywords
impurity
nanofiltration
vancomycin hydrochloride
purity
solution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510657005.6A
Other languages
Chinese (zh)
Inventor
詹付凤
何勇崴
赵燕
张洪兰
谢云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING DAXIN PHARMACEUTICAL Co Ltd
Peking University Founder Group Co Ltd
PKU Healthcare Industry Group
Original Assignee
CHONGQING DAXIN PHARMACEUTICAL Co Ltd
Peking University Founder Group Co Ltd
PKU Healthcare Industry Group
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHONGQING DAXIN PHARMACEUTICAL Co Ltd, Peking University Founder Group Co Ltd, PKU Healthcare Industry Group filed Critical CHONGQING DAXIN PHARMACEUTICAL Co Ltd
Priority to CN201510657005.6A priority Critical patent/CN106565820A/en
Publication of CN106565820A publication Critical patent/CN106565820A/en
Pending legal-status Critical Current

Links

Landscapes

  • Peptides Or Proteins (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Abstract

The invention discloses a method for preparing a high-purity sample of vancomycin hydrochloride impurities 3 and 8. The method comprises the following steps: taking vancomycin hydrochloride crystalline powder, preparing the vancomycin hydrochloride crystalline powder into a solution with concentration being 40-50g/L by use of a sodium chloride aqueous solution; preserving heat for 72-73 hours at a water bath ranging from 70 DEG C to 75 DEG C; cooling the solution to 4-6 DEG C, and carrying out nanofiltration desalination; carrying out resin chromatography enrichment on nanofiltration liquor, and separately collecting desorbed solutions of an impurity 3 and an impurity 8, purity of which is greater than 80%; sequentially carrying out ultrafiltration and nanofiltration on the desorbed solutions; and desalinizing the nanofiltration liquor with a high-pressure liquid-phase chromatography preparation column to obtain high-purity samples of the impurity 3 and the impurity 8, and the purity of the samples is greater than 97%. The method disclosed by the invention is simple in process, so that preparation cost is greatly reduced.

Description

A kind of method for preparing the high-purity sample of vancomycin hydrochloride impurity 3 and 8
Technical field
The invention belongs to biofermentation pharmaceutical field, a kind of preparation method of the related impurities being related in antibiotic product, especially relate to And the preparation method of the high-purity sample of vancomycin hydrochloride related impurities 3 and impurity 8.
Background technology
Vancomycin hydrochloride is a kind of subsidiary product of three cyclohexanol glycosidation non-ribosomal peptides, by the Amycolatopsis orientalis of actinomyces (being named as Nocardia orientalis in the past) is produced by fermenting.Vancomycin hydrochloride is narrow-spectrum antibiotic, only to gram positive bacteria Effectively, such as hemolytic streptococcus, pneumococcus and enterococcus belong to sensitive, particularly sensitive to drug-resistant staphylococcus aureus this product.Its work It is to suppress the synthesis of bacteria cell wall with mechanism, its main and bacteria cell wall is combined, and prevents some amino acid from into cell In the glycopeptide of wall.Clinic is mainly used in the severe infections caused by penicillin resistant S. aureus L-forms, such as pneumonia, endocarditis and septicemia Deng the infection caused to hemolytic streptococcus and septicemia etc. also have preferable curative effect.
Vancomycin hydrochloride related impurities is the emphasis of vancomycin hydrochloride quality control, and highly purified impurity sample is to its pharmacology poison Reason research plays an important role.
The detection mode of vancomycin hydrochloride specifies that the high pressure liquid chromatography testing conditions of employing are as follows according to 2010 editions Chinese Pharmacopoeias:
Liquid chromatograph:Shimadzu LC-2010C HT
Chromatographic column:C18250 × 4.6mm brands:Thermo (the silent winged generation that of match)
Mobile phase A:Triethylamine buffer solution (take triethylamine 4mL and add water to 2000mL, with phosphorus acid for adjusting pH value to 3.2): Acetonitrile: tetrahydrofuran=92: 7: 1
Mobile phase B:Triethylamine buffer solution: acetonitrile: tetrahydrofuran=70: 29: 1
Gradient is arranged:
Detection wavelength:λ=280 flow velocity:1.0mL/min sampling volume:20μL
According to above-mentioned detection method, high pressure liquid chromatography detection, detection collection of illustrative plates such as Fig. 1 institutes are carried out to vancomycin hydrochloride sample Show.Respectively name is numbered to the impurity in Fig. 1, it is as shown in table 1 below:
Table 1
Retention time (Min) Relative retention value Impurity is numbered
3.80 0.43 1
4.653 0.52 2
5.434 0.61 3
5.969 0.67 4
6.499 0.73 5
7.07 0.8 6
8.368 0.94 7
8.874 1 Vancomycin
13.532 1.52 8
15.737 1.77 9
17.415 1.96 10
19.123 2.15 11
19.562 2.2 12
20.35 2.29 13
22.312 2.51 14
23.717 2.67 15
A quantitative calculating is carried out to impurity for convenience, with vancomycin hydrochloride as standard items, by area normalization method meter One for obtaining facilitates us to weigh the relative numerical value of upper column quantity.
Wherein impurity 3, impurity 9 (referring to Fig. 1) comparision contents in vancomycin hydrochloride finished product are low, and C18 fillers prepare post point Need to consume substantial amounts of vancomycin hydrochloride finished product and substantial amounts of mobile phase from this impurity is prepared, preparation cost is very high.
The content of the invention
It is an object of the invention to provide a kind of preparation method of the high-purity sample of vancomycin hydrochloride related impurities 3 and impurity 8, Quickly and more easily the impurity 3 in vancomycin hydrochloride sample, impurity 8 can be enriched to into higher purity, and component phase To single, then highly purified impurity sample is obtained by preparative separation.
A kind of method for preparing vancomycin hydrochloride impurity 3 and the high-purity sample of impurity 8, its step includes:
1) vancomycin hydrochloride crystalline powder is taken, with sodium-chloride water solution 40-50g/L concentration is dissolved into, obtain vancomycin hydrochloride Sodium-chloride water solution;
2) by step 1) the vancomycin hydrochloride sodium-chloride water solution heating water bath to 70~75 DEG C that obtains, it is incubated 72~73 hours;
3) by step 2) solution cool to 4~6 DEG C, carry out nanofiltration desalination;
4) to step 3) nanofiltration liquid that obtains carries out resin chromatography enrichment, and impurity 3 of the purity more than 80% and impurity are collected respectively 8 desorbed solution;
5) desorbed solution of impurity 8 of the impurity 3 and purity respectively to purity more than 80% more than 80% carries out successively ultrafiltration and nanofiltration Concentration;
6) step 5) obtain impurity 3 and the nanofiltration liquid of impurity 8 prepares post desalination with high pressure liquid chromatography respectively, obtain purity big Impurity 3 and the high-purity sample of impurity 8 in 97%.
Preferably, above-mentioned steps 1) in vancomycin hydrochloride crystalline powder high pressure liquid chromatography be detected as 95-98% purity.
Preferably, above-mentioned steps 1) described in sodium-chloride water solution concentration be 5%~6% (g/mL).
Preferably, above-mentioned steps 3) in the filter sizes that use of nanofiltration be 400~500Da, hydrochloric acid is through the ages in nanofiltration liquid after nanofiltration The content of mycin is 10~50g/L.
Preferably, above-mentioned steps 4) resin that adopts for non-polar macroporous resin, such as mitsubishi chemical industry HP20SS or Shanghai Hua Zhen Chromatogram -3, resin particle diameter 200-300 mesh;The resin chromatography condition for adopting for:
Upper 1~1.5BV/h of column flow rate, collects leakage imbibition, checked for impurities situation;
Ammonium acetate aqueous solution (3BV) prewashing of 1% (g/mL), it is unified to collect pre- washing lotion, checked for impurities situation;
The NH of 0.3% (g/mL)4HCO3The aqueous solution (pH7.9~8.0, electrical conductivity 3.52) 3BV prewashing, unified collection liquid, Checked for impurities situation
The NH of 0.5% (g/mL)4HCO3(pH7.9~8.0, electrical conductivity 5.80) 5BV is eluted, and Fractional Collections eluent is (such as 1/10 eluent of resin column volume collection one time), detect eluent impurity situation;Merge impurity 3 of the purity more than 80% respectively With the desorbed solution of impurity 8.
In resin chromatography, detection method is detected using high pressure liquid chromatography, and testing conditions are as follows:
Liquid chromatograph:Shimadzu LC-2010C HT
Chromatographic column:C18250 × 4.6mm brands:Thermo (the silent winged generation that of match)
Mobile phase A:Triethylamine buffer solution (take triethylamine 4mL and add water to 2000mL, with phosphorus acid for adjusting pH value to 3.2): Acetonitrile: tetrahydrofuran=92: 7: 1
Mobile phase B:Triethylamine buffer solution: acetonitrile: tetrahydrofuran=70: 29: 1
Gradient is arranged:
Detection wavelength:λ=280 flow velocity:1.0mL/min sampling volume:20μL
Preferably, above-mentioned steps 5) in the filter sizes that use of ultrafiltration be 5000~7000Da;The filter sizes that nanofiltration is used are 400~500Da;The impurity 3 for respectively obtaining and the final nanofiltration liquid of impurity 8, its volume is equivalent to by step 1) in take hydrochloric acid Vancomycin crystalline powder prepares the 1/3~1/2 of liquor capacity.
Preferably, above-mentioned steps 6) in prepare the separation condition of post desalination and be:
Prepare filler:C18HCE
Mobile phase A:Acetonitrile
Mobile phase B:0.1% (V/V) TFA aqueous solution
Gradient is arranged:
Table 2
Time (min) Mobile phase B Mobile phase A Flow velocity (mL/min)
0 90 10 70
28 90 10 70
30 15 85 70
34 15 85 70
34.8 93 7 100
45 93 7 100
Detection wavelength:280nm
Impurity 3, the high-purity sample of impurity 8 in vancomycin hydrochloride sample, technique can be quickly prepared by the inventive method Simply, great amount of cost has been saved compared to the method that this several impurity are prepared in prior art.
Description of the drawings
Fig. 1 is the high pressure liquid chromatography detection collection of illustrative plates of vancomycin hydrochloride sample.
Specific embodiment
By the following examples the invention will be further described, but this is not limitation of the present invention, those skilled in the art Basic thought of the invention, various modifications may be made or improve, but without departing from the present invention basic thought, Within the scope of the present invention.
Embodiment 1.
1. 5g vancomycin hydrochloride crystalline powders (high pressure liquid chromatography detection purity is 95%) are taken, 5% aqueous sodium chloride is added Liquid is configured to the aqueous solution of 42g/L, liquor capacity about 119mL;
2. solution water bath heat preservation step 1 prepared, temperature is 72 DEG C, and then temperature retention time 72h is cooled to 4 DEG C with cup type Aperture carries out nanofiltration for 500Da collecting and filtering apparatus, liquor capacity 70mL after nanofiltration, 4 DEG C of preservations;
3. by the solution after nanofiltration, the HP20SS resin columns of upper 1000mL;
4. the ammonium acetate aqueous solution washing resin of 1% concentration (g/mL) of 3000mL is used after the completion of upper prop;
5. the NH of 0.3% concentration (g/ml) of 3000mL is used4HCO3The aqueous solution (pH7.9~8.0) prewashing;
6. the NH of 0.5% concentration (g/ml) of 5000mL is used4HCO3Water-soluble (pH7.9~8.0) liquid wash-out, receives per 100mL One bottle of collection, sampling high pressure liquid chromatography detection;Merge stripping liquid 500mL of the purity of impurity 3 more than 80%;Merge impurity 8 pure Stripping liquid 600mL of the degree more than 80%;
The condition of wherein high pressure liquid chromatography detection is as follows:
Liquid chromatograph:Shimadzu LC-2010C HT
Chromatographic column:C18250 × 4.6mm brands:Thermo (the silent winged generation that of match)
Mobile phase A:Triethylamine buffer solution (take triethylamine 4mL and add water to 2000mL, with phosphorus acid for adjusting pH value to 3.2): Acetonitrile: tetrahydrofuran=92: 7: 1
Mobile phase B:Triethylamine buffer solution: acetonitrile: tetrahydrofuran=70: 29: 1
Gradient is arranged:
Detection wavelength:λ=280 flow velocity:1.0mL/min sampling volume:20μL
7. respectively impurity 3 and the desorbed solution of impurity 8 carried out into ultrafiltration and nanofiltration, the filter sizes that ultrafiltration is used are 7000Da, are received The filter sizes that filter is used are 500Da;
8. volume is 40mL after the nanofiltration of impurity 3, and high pressure liquid chromatography detects that its content is 81.6%;Volume is after the nanofiltration of impurity 8 52mL, high pressure liquid chromatography detects that its its content is 84.1%;
9. it is prepared separation to the nanofiltration liquid of impurity 3 and impurity 8 respectively using high pressure preparative liquid chromatography, separates impurity and freeze Detection, as a result as shown in table 3.
Table 3
Impurity title Chromatographic purity Lyophilized weight
Impurity 3 98.5% 82mg
Impurity 8 98.2% 85.2mg
Embodiment 2.
1. 5g vancomycin hydrochloride crystalline powders (high pressure liquid chromatography detection purity is 96%) are taken, 6% aqueous sodium chloride is added Liquid is configured to the aqueous solution of 45g/L, liquor capacity about 111mL;
2. solution water bath heat preservation step 1 prepared, temperature is 73 DEG C, and then temperature retention time 73h is cooled to 4 DEG C with cup type Aperture carries out nanofiltration for 500Da collecting and filtering apparatus, liquor capacity 64.6mL after nanofiltration, 4 DEG C of preservations;
3. by the solution after nanofiltration, the resin column of chromatogram -3 of upper 1000mL;
4. the ammonium acetate aqueous solution washing resin of 1% concentration of 3000mL is used after the completion of upper prop;
5. the NH of 0.3% concentration of 3000mL is used4HCO3The aqueous solution (pH7.9~8.0) prewashing;
6. the NH of 0.5% concentration of 5000mL is used4HCO3The aqueous solution (pH7.9~8.0) is eluted, and one bottle is collected per 100mL, Sampling high pressure liquid chromatography detection (testing conditions are with embodiment 1);Merge stripping liquid 600mL of the purity of impurity 3 more than 80%; Merge stripping liquid 600mL of the purity of impurity 8 more than 80%.
7. respectively impurity 3 and the desorbed solution of impurity 8 carried out into ultrafiltration and nanofiltration, the filter sizes that ultrafiltration is used are 5000Da, are received The filter sizes that filter is used are 400Da;
8. volume is 37mL after the nanofiltration of impurity 3, and high pressure liquid chromatography detects that its content is 83.6%;Volume is after the nanofiltration of impurity 8 55mL, high pressure liquid chromatography detects that its content is 84.4%;
9. it is prepared separation to the nanofiltration liquid of impurity 3 and impurity 8 respectively using high pressure preparative liquid chromatography, separates impurity and freeze Dry detection, as a result as shown in table 4.
Table 4
Impurity title Chromatographic purity Lyophilized weight
Impurity 3 97.5% 90.5mg
Impurity 8 99.2% 75.6mg
Embodiment 3.
1. 5g vancomycin hydrochloride crystalline powders (high pressure liquid chromatography detection purity is 95.6%) are taken, 6% aqueous sodium chloride is added Liquid is configured to the aqueous solution of 50g/L, liquor capacity about 100mL;
2. solution water bath heat preservation step 1 prepared, temperature is 72.5 DEG C, and then temperature retention time 72.5h is cooled to 4 DEG C with cup Formula aperture carries out nanofiltration for 500Da collecting and filtering apparatus, liquor capacity 60.8mL after nanofiltration, 4 DEG C of preservations;
3. by the solution after nanofiltration, the resin column of chromatogram -3 of upper 1000mL;
4. the ammonium acetate aqueous solution washing resin of 1% concentration of 3000mL is used after the completion of upper prop;
5. the NH of 0.3% concentration of 3000mL is used4HCO3The aqueous solution (pH7.9~8.0) prewashing;
6. the NH of 0.5% concentration of 5000mL is used4HCO3The aqueous solution (pH7.9~8.0) is eluted, and one bottle is collected per 100mL, Sampling high pressure liquid chromatography detection (testing conditions are with embodiment 1);Merge stripping liquid 500mL of the purity of impurity 3 more than 80%; Merge stripping liquid 500mL of the purity of impurity 8 more than 80%.
7. respectively impurity 3 and the desorbed solution of impurity 8 carried out into ultrafiltration and nanofiltration, the filter sizes that ultrafiltration is used are 7000Da, are received The filter sizes that filter is used are 400Da;
8. volume is 42mL after the nanofiltration of impurity 3, and high pressure liquid chromatography detects that its content is 82.1%;Volume is after the nanofiltration of impurity 8 45mL, high pressure liquid chromatography detects that its its content is 83.6%;
9. it is prepared separation to the nanofiltration liquid of impurity 3 and impurity 8 respectively using high pressure preparative liquid chromatography, separates impurity and freeze Detection, as a result as shown in table 5.
Table 5
Impurity title Chromatographic purity Lyophilized weight
Impurity 3 98.1% 81.5mg
Impurity 8 98.9% 86.1mg

Claims (10)

1. a kind of method for preparing vancomycin hydrochloride impurity 3 and the high-purity sample of impurity 8, comprises the following steps:
1) vancomycin hydrochloride crystalline powder is taken, with sodium-chloride water solution 40-50g/L concentration is dissolved into, obtain vancomycin hydrochloride Sodium-chloride water solution;
2) by step 1) the vancomycin hydrochloride sodium-chloride water solution heating water bath to 70~75 DEG C that obtains, it is incubated 72~73 hours;
3) by step 2) solution cool to 4~6 DEG C, carry out nanofiltration desalination;
4) to step 3) nanofiltration liquid that obtains carries out resin chromatography enrichment, and impurity 3 of the purity more than 80% and impurity are collected respectively 8 desorbed solution;
5) respectively to step 4) collect impurity 3 and impurity 8 desorbed solution carry out successively ultrafiltration and nanofiltration concentration;
6) step 5) obtain impurity 3 and the nanofiltration liquid of impurity 8 prepares post desalination with high pressure liquid chromatography respectively, obtain purity big Impurity 3 and the high-purity sample of impurity 8 in 97%.
2. the method for claim 1, it is characterised in that step 1) in vancomycin hydrochloride crystalline powder high pressure liquid chromatography It is detected as 95-98% purity.
3. the method for claim 1, it is characterised in that step 1) described in the concentration of sodium-chloride water solution be 5%~6%.
4. the method for claim 1, it is characterised in that step 3) in the filter sizes that use of nanofiltration be 400~500Da, The content of vancomycin hydrochloride is 10~50g/L in nanofiltration liquid after nanofiltration.
5. the method for claim 1, it is characterised in that step 4) resin that adopts is for non-polar macroporous resin.
6. method as claimed in claim 5, it is characterised in that the non-polar macroporous resin be mitsubishi chemical industry HP20SS or on Hai Huazhen chromatogram -3, the mesh of resin particle diameter 200~300.
7. method as claimed in claim 5, it is characterised in that step 4) actual conditions of resin chromatography is:Upper column flow rate 1~1.5 BV/h;The 1% of 3BV ammonium acetate aqueous solution prewashing is used after the completion of upper prop;The 0.3% of 3BV NH is used again4HCO3 Aqueous solution prewashing;Finally use the 0.5% of 5BV NH4HCO3Wash-out, Fractional Collections eluent is simultaneously detected.
8. the method for claim 1, it is characterised in that step 5) in the filter sizes that use of ultrafiltration be 5000~7000Da; The filter sizes that nanofiltration is used are 400~500Da.
9. the method for claim 1, it is characterised in that step 5) impurity 3 that respectively obtains and impurity 8 final nanofiltration Liquid, its volume is equivalent to by step 1) in take the 1/3~1/2 of the liquor capacity that vancomycin hydrochloride crystalline powder is prepared.
10. the method for claim 1, it is characterised in that step 6) separation condition that uses of mesohigh liquid chromatography preparation post For:Filler is prepared for C18HCE;Mobile phase A is acetonitrile;Mobile phase B is water-soluble for the trifluoroacetic acid of 0.1% (V/V) Liquid;Gradient is set to shown in table 2:
Table 2
Time (min) Mobile phase B Mobile phase A Flow velocity (mL/min) 0 90 10 70 28 90 10 70 30 15 85 70 34 15 85 70 34.8 93 7 100 45 93 7 100
Detection wavelength is 280nm.
CN201510657005.6A 2015-10-12 2015-10-12 Method for preparing high-purity sample of vancomycin hydrochloride impurities 3 and 8 Pending CN106565820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510657005.6A CN106565820A (en) 2015-10-12 2015-10-12 Method for preparing high-purity sample of vancomycin hydrochloride impurities 3 and 8

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510657005.6A CN106565820A (en) 2015-10-12 2015-10-12 Method for preparing high-purity sample of vancomycin hydrochloride impurities 3 and 8

Publications (1)

Publication Number Publication Date
CN106565820A true CN106565820A (en) 2017-04-19

Family

ID=58508510

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510657005.6A Pending CN106565820A (en) 2015-10-12 2015-10-12 Method for preparing high-purity sample of vancomycin hydrochloride impurities 3 and 8

Country Status (1)

Country Link
CN (1) CN106565820A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110903346A (en) * 2019-11-08 2020-03-24 丽珠集团新北江制药股份有限公司 Method for preparing vancomycin hydrochloride impurity impC
CN113429462A (en) * 2021-08-17 2021-09-24 丽珠集团福州福兴医药有限公司 Purification method of high-purity vancomycin
CN114112612A (en) * 2021-10-28 2022-03-01 丽珠集团福州福兴医药有限公司 Separation and purification method of teicoplanin I5 impurity and application thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1861629A (en) * 2005-11-30 2006-11-15 上海医药工业研究院 Process for pretreating vancomycin ferment fluid for HPLC analysis
US20080193986A1 (en) * 2007-02-14 2008-08-14 Sang Young Kim Mutant strain of Amycolatopsis orientalis and process for preparing vancomycin hydrochloride
CN102863519A (en) * 2012-09-13 2013-01-09 福建博美生物技术有限公司 Refining method for vancomycin hydrochloride
CN104387444A (en) * 2014-11-13 2015-03-04 北大医药重庆大新药业股份有限公司 Method for preparing high-purity sample of impurity RS-2 in daptomycin
CN104610434A (en) * 2013-11-01 2015-05-13 浙江医药股份有限公司新昌制药厂 Separation and purification method of high-purity vancomycin hydrochloride

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1861629A (en) * 2005-11-30 2006-11-15 上海医药工业研究院 Process for pretreating vancomycin ferment fluid for HPLC analysis
US20080193986A1 (en) * 2007-02-14 2008-08-14 Sang Young Kim Mutant strain of Amycolatopsis orientalis and process for preparing vancomycin hydrochloride
CN102863519A (en) * 2012-09-13 2013-01-09 福建博美生物技术有限公司 Refining method for vancomycin hydrochloride
CN104610434A (en) * 2013-11-01 2015-05-13 浙江医药股份有限公司新昌制药厂 Separation and purification method of high-purity vancomycin hydrochloride
CN104387444A (en) * 2014-11-13 2015-03-04 北大医药重庆大新药业股份有限公司 Method for preparing high-purity sample of impurity RS-2 in daptomycin

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
祝仕清等: "盐酸万古霉素中杂质的LC-MS分析", 《中国抗生素杂质》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110903346A (en) * 2019-11-08 2020-03-24 丽珠集团新北江制药股份有限公司 Method for preparing vancomycin hydrochloride impurity impC
CN110903346B (en) * 2019-11-08 2022-01-04 丽珠集团新北江制药股份有限公司 Method for preparing vancomycin hydrochloride impurity impC
CN113429462A (en) * 2021-08-17 2021-09-24 丽珠集团福州福兴医药有限公司 Purification method of high-purity vancomycin
CN114112612A (en) * 2021-10-28 2022-03-01 丽珠集团福州福兴医药有限公司 Separation and purification method of teicoplanin I5 impurity and application thereof

Similar Documents

Publication Publication Date Title
EP3064214B1 (en) Separation and purification method for vancomycin hydrochloride of high purity
CN106831596B (en) A method of preparing erythrothioneine
ES2532408T3 (en) Procedure for purifying colistin and purified colistin components
CN106565820A (en) Method for preparing high-purity sample of vancomycin hydrochloride impurities 3 and 8
CN104043104B (en) The spray dried powder and its industrialized process for preparing of hydrochloric vancomycin
CN101830970B (en) Purification and preparation method of high-purity Daptomycin
CN104387444B (en) A kind of preparation method of the high-purity samples of Daptomycin impurity RS 2
CN102718839A (en) Method for separating and purifying daptomycin
CN103193868B (en) A kind of purification process of echinocandin antifungal agent anidulafungin
CN106568620B (en) The preparation method of vancomycin hydrochloride impurity 11,13 and 15 high-purity samples
CN107434823A (en) A kind of oritavancin intermediate A 82846B purification process
CN109470799A (en) The purity and impurity position finding and detection method of Fmoc-Arg (Pbf)-OH
CN103304640B (en) A kind of method extracting Echinocandin compound from fermented liquid
CN106349343A (en) Norvancomycin derivatives and preparation and purification method thereof
CN103694319B (en) A kind of purification process of Buserelin
CN103487518A (en) Impurity detection method and content determination method for clindamycin hydrochloride for injection
CN102492024A (en) Method for extracting daptomycin from fermentation broth
CN106866790A (en) The preparation method of Daptomycin RS-5/6, RS-7 and RS-7a/7b impurity
CN105713069B (en) A kind of purification process of bacilysin
US20170275335A1 (en) Improved process for preparation of amorphous linaclotide
CN104945468B (en) The preparation method and applications of MMAF chiral isomers
CN106565819A (en) Method for preparation of high purity samples of 3 impurities in vancomycin hydrochloride
CN109206486A (en) A kind of impurity and preparation method thereof of sulfuric acid Polymyxin B sulfate
CN106565818A (en) Method for preparing high-purity samples of impurities of vancomycin hydrochloride
CN106866789A (en) A kind of method for isolating and purifying Daptomycin RS-8 impurity

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170419

WD01 Invention patent application deemed withdrawn after publication