CN106674211A - Noxafil impurities and preparation methods thereof - Google Patents

Noxafil impurities and preparation methods thereof Download PDF

Info

Publication number
CN106674211A
CN106674211A CN201510753583.XA CN201510753583A CN106674211A CN 106674211 A CN106674211 A CN 106674211A CN 201510753583 A CN201510753583 A CN 201510753583A CN 106674211 A CN106674211 A CN 106674211A
Authority
CN
China
Prior art keywords
compound
formula
posaconazole
purity
impurity
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
CN201510753583.XA
Other languages
Chinese (zh)
Inventor
朱溪
苗兴亮
李雯
张连第
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.)
NANJING SIMCERE DONGYUAN PHARMACEUTICAL CO Ltd
Jiangsu Simcere Pharmaceutical Co Ltd
Original Assignee
NANJING SIMCERE DONGYUAN PHARMACEUTICAL CO Ltd
Jiangsu Simcere Pharmaceutical Co Ltd
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 NANJING SIMCERE DONGYUAN PHARMACEUTICAL CO Ltd, Jiangsu Simcere Pharmaceutical Co Ltd filed Critical NANJING SIMCERE DONGYUAN PHARMACEUTICAL CO Ltd
Priority to CN201510753583.XA priority Critical patent/CN106674211A/en
Publication of CN106674211A publication Critical patent/CN106674211A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D405/00Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/14Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

The invention relates to three Noxafil oxide impurities as shown in the formula I to III, and discloses preparation methods and structural characterization of the three impurities and uses of the three impurities as impurity reference substances for controlling the purity of Noxafil raw materials or preparations.

Description

Posaconazole impurity and preparation method thereof
Technical field
The present invention relates to three kinds of impurity of posaconazole and preparation method thereof.
Background technology
Posaconazole in October, 2005 is in European Initial Public Offering, trade nameU.S. FDA is in September, 2006 Have approved Posaconazole Oral Suspension (specification:40mg/mL), Yuan Yan enterprises are Schering Plough, and Schering Plough is by Mo Shadong receipts After purchase, Mo Shadong subsequent developments posaconazole slow releasing tablet and injection.In November, the 2013 and U.S. FDA of in March, 2014 (specification is 16.7mL for approval posaconazole slow releasing tablet (specification is 100mg/ pieces) and injection respectively:0.3g).Posaconazole is fitted Patient for causing aggressive aspergillosiss and monilial infection risk to increase because of severe immunodeficiency includes hematopoietic stem cell transplantation (HSCT) patient of graft versus host disease (GVHD) or chemotherapy occur afterwards causes the blood of long-time neutrophilic granulocytopenia The prophylactic treatment of the invasive infections with fungi of liquid System Malignant Tumor patient.It is applied to treatment oral candidiasis, including she simultaneously Triaconazole and/or the intractable oral candidiasis of fluconazole.
The chemical structural formula of posaconazole is as shown in formula IV:
It is known in the art, in human administration's security consideration, before a kind of product commercialization of effective ingredient (API) Need the extremely low lower limit of the identification of non-characteristic impurity in toxicology is set up by country and international management.The limit of usual every kind of impurity Amount less than about 0.15% weight ratio.The limit of unidentified and/or non-characteristic impurity is considerably lower, typically less than 0.1% weight ratio.
In this area it is also known that, the impurity in any effective ingredient of posaconazole (API) is may be from the degraded of API itself And manufacture process, including chemosynthesis.Process contaminants include contained impurity and its chemistry in unreacted raw material, raw material Derivant, synthesising by-product and catabolite.
With regard to the impurity of posaconazole, document (Structural characterization of impurities and degradation Products 164-177) have been reported, but the oxidation impurities formed in oxidative degradation by posaconazole, especially nitrogen oxidation Impurity, is not related at present.
Therefore, for posaconazole oxidation impurities preparation and sign, for the stability of posaconazole crude drug and preparation is ground Study carefully particularly important with quality control.
The applicant is during posaconazole stability study, it was found that the oxidation impurities of three kinds of posaconazoles, to its chromatograph row To be studied.The invention provides three kinds of posaconazole oxidation impurities and preparation method thereof, and structural characterization has been carried out to which.
The content of the invention
An object of the present invention is to provide a kind of impurity of posaconazole, i.e. compound of formula I, and the impurity is 1- (4- (((3R, 5R) -5- ((1H-1,2,4- triazol-1-yls) methyl) -5- (2,4 difluorobenzene base) tetrahydrofuran base -3- bases) methoxyl group) phenyl) -4 - (4- (1- ((2S, 3S) -2- hydroxyl pentyl -3- bases) -5- oxo -1H-1, -4 (5H)-yl of 2,4- triazole) phenyl) piperazinyl-Isosorbide-5-Nitrae-oxide.
Above-mentioned compound of formula I is separated into the purity with least 50% in some embodiments, or at least 60% purity, Or at least 70% purity, or at least 80% purity, or at least 90% purity, or at least 95% purity, Or at least 96% purity, or at least 97% purity, or at least 98% purity, or at least 99% purity, The purity is generally the purity of HPLC area normalizations.
The present invention provides a kind of method for preparing compound of formula I, including:
By posaconazole under oxidant effect, reaction in a solvent obtains compound of formula I.
Wherein solvent includes but is not limited to N,N-dimethylformamide, dichloromethane, N-Methyl pyrrolidone, tetrahydrofuran, second Nitrile, Isosorbide-5-Nitrae-dioxane, one or more in ethyl acetate, dimethyl sulfoxide, toluene, ethanol, water.
Wherein oxidant is included but is not limited in hydrogen peroxide, tert-butyl hydroperoxide, metachloroperbenzoic acid or peracetic acid One or more.
Wherein reaction temperature does not have particular/special requirement, can prepare the temperature range of impurity I~III, the boiling of preferably 10 DEG C~solvent Point.
Response time does not have particular/special requirement, can be according to TLC or HPLC monitoring reaction process.
Further, it is to help posaconazole dissolving, it is also possible to the enriching hydrochloric acid in reaction system.
It is a further object of the present invention to provide a kind of impurity of posaconazole, i.e. Formula II compound, the impurity is 1- (4- (((3R, 5R) -5- ((1H-1,2,4- triazol-1-yls) methyl) -5- (2,4 difluorobenzene base) tetrahydrofuran base -3- bases) methoxyl group) phenyl) - 4- (4- (1- ((2S, 3S) -2- hydroxyl pentyl -3- bases) -4 (5H)-yl of -5- oxo -1H-1,2,4- triazoles) phenyl) piperazinyl 1- oxides.
Above-mentioned Formula II compound is separated into the purity with least 50% in some embodiments, or at least 60% purity, Or at least 70% purity, or at least 80% purity, or at least 90% purity, or at least 95% purity, Or at least 96% purity, or at least 97% purity, or at least 98% purity, or at least 99% purity, The purity is generally the purity of HPLC area normalizations.
The present invention provides a kind of method for preparing Formula II compound, including:
By posaconazole under oxidant effect, reaction in a solvent obtains Formula II compound.
Wherein solvent includes but is not limited to N,N-dimethylformamide, dichloromethane, N-Methyl pyrrolidone, tetrahydrofuran, second Nitrile, Isosorbide-5-Nitrae-dioxane, one or more in ethyl acetate, dimethyl sulfoxide, toluene, ethanol, methanol, water.
Wherein oxidant is included but is not limited in hydrogen peroxide, tert-butyl hydroperoxide, metachloroperbenzoic acid, peracetic acid One or more.
Wherein reaction temperature does not have particular/special requirement, can prepare the temperature range of impurity I~III, the boiling of preferably 10 DEG C~solvent Point.
Response time does not have particular/special requirement, can be according to TLC or HPLC monitoring reaction process.
Further, it is to help posaconazole dissolving, it is also possible to the salt adding acid in reaction system.
Further, it is to simplify post processing, reaction can add alkali that solution is adjusted pH value to 8~9 after terminating, wherein, the alkali choosing From sodium hydroxide solution.
It is a still further object of the present invention to provide a kind of impurity of posaconazole, i.e. formula III compound, the impurity is 4- (4- (((3R, 5R) -5- ((1H-1,2,4- triazol-1-yls) methyl) -5- (2,4 difluorobenzene base) tetrahydrofuran base -3- bases) methoxyl group) benzene Base) -1- (4- (1- ((2S, 3S) -2- hydroxyl pentyl -3- bases) -4 (5H)-yl of -5- oxo -1H-1,2,4- triazoles) phenyl) piperazinyl -1- oxides.
Above-mentioned formula III compound is separated into the purity with least 50% in some embodiments, or at least 60% it is pure Degree, or at least 70% purity, or at least 80% purity, or at least 90% purity, or at least 95% it is pure Degree, or at least 96% purity, or at least 97% purity, or at least 98% purity, or at least 99% it is pure Degree, the purity are generally the purity of HPLC area normalizations.
The present invention provides a kind of method for preparing formula III compound, including:
By posaconazole under oxidant effect, reaction in a solvent obtains formula III compound.
Wherein solvent includes but is not limited to N,N-dimethylformamide, dichloromethane, N-Methyl pyrrolidone, tetrahydrofuran, second Nitrile, Isosorbide-5-Nitrae-dioxane, one or more in ethyl acetate, dimethyl sulfoxide, toluene, ethanol, methanol, water.
Wherein oxidant is included but is not limited in hydrogen peroxide, tert-butyl hydroperoxide, metachloroperbenzoic acid or peracetic acid One or more.
Wherein reaction temperature does not have particular/special requirement, can prepare the temperature range of impurity I~III, the boiling of preferably 10 DEG C~solvent Point.
Response time does not have particular/special requirement, can be according to TLC or HPLC monitoring reaction process.
Further, it is to help posaconazole dissolving, it is also possible to the enriching hydrochloric acid in reaction system.
The beneficial effect of the technical solution used in the present invention is simple operation, and reaction condition is gently controllable, and the stability of reaction is high, Also, product high income, purity are high.
Also, above-mentioned Formulas I~formula III compound can control the purity of posaconazole raw material or preparation as impurity reference substance.
Description of the drawings
Fig. 1:Impurity I, II, III HPLC detects collection of illustrative plates
Fig. 2:Compound II nuclear magnetic resonance, NMR HMBC collection of illustrative plates
Fig. 3:Compound III nuclear magnetic resonance, NMR HMBC collection of illustrative plates
Specific embodiment
The present invention will by embodiment more detailed description, these embodiments be exemplarily used for further illustrating in hereafter, and It is not construed as limiting the present invention.
The preparation of impurity I, II, III
Embodiment 1:
Posaconazole (1.5g) is suspended in water (20.0mL), ethanol (10.0mL) is added, and pH value is adjusted using concentrated hydrochloric acid To 1~2,30% hydrogen peroxide (2.0mL) is added, stirred 24 hours at 15~30 DEG C, adjusted using 25% sodium hydroxide solution PH value will separate out a small amount of solid and filter, take filtrate, be extracted twice with dichloromethane (each 15.0mL), merge two to 8~9 Chloromethanes layer, is washed using 20% sodium sulfite solution (10.0g), with preparation liquid phase purifies and separates after the organic faciess concentration for obtaining, Obtain impurity I solid 0.19g (21.1%);Obtain impurity II solid 0.13g (8.5%);Obtain impurity III solid 0.15g (9.8%).
Embodiment 2:
Posaconazole (1.5g) is dissolved in DMF (6.0mL), 70% tert-butyl hydroperoxide (2.0mL) is added, Stir 5 hours at 70~80 DEG C, water (20.0mL) is added after being cooled to 25~30 DEG C, is adjusted using 25% sodium hydroxide solution PH value filters the solid of precipitation to 8~9, and gained filtrate is extracted twice using dichloromethane (each 10.0mL), merges two Chloromethanes layer, is washed using 20% sodium sulfite solution (10.0g), with liquid phase separation is prepared after the organic faciess concentration for obtaining, is obtained Impurity I solid 0.20g (12.8%);Obtain impurity II solid 0.12g (7.8%);Obtain impurity III solid 0.16g (10.4%).
Embodiment 3:
Posaconazole (1.0g) is suspended in water (10.0mL), 50 DEG C of molten clear, additions metachloroperbenzoic acid (0.6g) are warming up to, In room temperature reaction 48 hours.The lower 25%NaOH aqueous solutions of stirring adjust pH to 8-9, are extracted with dichloromethane (each 10.0mL) Take twice, washed once with 8% sodium sulfite solution (10.0mL) after combined dichloromethane layer, and use anhydrous sodium sulfate drying.To have Machine is used after mutually concentrating and prepares liquid phase separation, obtains impurity I solid 0.132g (12.6%);Obtain impurity II solid 0.085g (8.3%); Obtain impurity III solid 0.091g (8.9%).
Embodiment 4:
Posaconazole outstanding (2.0g) is suspended in methanol (10.0mL), system is adjusted to into pH2-3 with dilute hydrochloric acid, 50 DEG C are warming up to It is molten clear, 20% peracetic acid (2.0mL) is added, in room temperature reaction 12 hours.The lower 25%NaOH aqueous solutions of stirring adjust pH To 8-9, the solid of precipitation is filtered, water (20.0mL) is added in filtrate, is extracted twice with dichloromethane (each 10.0mL), Washed once with 8% sodium sulfite solution (10.0mL) after combined dichloromethane layer, and use anhydrous sodium sulfate drying.Organic faciess are concentrated Afterwards with liquid phase purifies and separates are prepared, impurity I solid 0.31g (14.8%) is obtained;Obtain impurity II solid 0.16g (7.8%); Obtain impurity III solid 0.18g (8.8%).
Impurity I:
MS-ESI(M+1):732.91H NMR:(400MHz,d6-DMSO)δ:8.59(s,1H),8.37(s,1H),8.33(d,2H),8.08 (d,2H),7.94(d,2H),7.80(s,1H),7.31(m,1H),7.29(m,1H),7.04(d,2H),7.01(m,1H),4.85 (m,2H),4.61(d,2H),4.06(d,1H),3.84(m,1H),3.83(m,1H),3.82(m,1H),3.80(m,1H),3.78(m, 1H),3.13(m,2H),2.61(m,1H),2.43(m,1H),2.19(m,1H),1.13(m,2H),1.15(d,3H),0.76(t, 3H);
Impurity II:
MS-ESI(M+1):716.9
1H NMR:(400MHz,d6-DMSO)δ:8.35(s,1H),8.35(s,1H),8.11(d,2H),7.78(s,1H),7.56(d,2H), 7.33(m,1H),7.28(m,1H),7.16(d,2H),7.02(m,1H),6.97(d,2H),4.68(d,1H),4.60(m,2H), 4.09(m,2H),4.07(m,1H),3.83(m,1H),3.82(m,1H),3.81(m,1H),3.79(m,1H),3.76(m,1H), 3.68(m,4H),2.98(m,2H),2.58(m,1H),2.42(m,1H),2.16(m,1H),1.72(m,2H),1.13(d,3H), 0.56(t,3H);
Impurity III:
MS-ESI(M+1):716.9
1H NMR:(400MHz,d6-DMSO)δ:8.56(s,1H),8.38(s,2H),8.36(s,1H),7.88(d,2H),7.79(s,1H), 7.32(m,1H),7.26(m,1H),7.02(m,1H),6.98(d,2H),6.84(d,2H),4.75(d,1H),4.60(d,2H),4.15 (t,2H),4.04(m,1H),3.83(m,1H),3.81(m,1H),3.76(m,2H),3.70(m,2H),3.62(t,2H),3.45(d, 2H),3.01(d,2H),2.55(m,1H),2.45(m,1H),2.18(m,1H),1.72(m,2H),1.14(d,3H),0.76(t, 3H);
I, II, III's prepares liquid phase process:
Instrument:Yi Lite (P270 pump-U230 detectors)
Chromatographic column:Boston C18 50*250mm 10um
Mobile phase:A acetonitrile B water flow velocities:80ml/min
Wavelength:The molten sample solvents of 260nm:Methanol
Impurity I, II, III HPLC analysis methods:
Chromatographic column:ZORBAX SB-Phenyl 4.6×75mm,3.5um
Mobile phase A:Water-tetrahydrofuran-phosphoric acid (1550:450:3)
Mobile phase B:Water-acetonitrile-tetrahydrofuran-phosphoric acid (250:500:250:1.5)
Solvent:Water-acetonitrile-phosphoric acid (75:25:1)
Sample concentration:1mg/ml
Wavelength:260nm;Column temperature:40℃;Sample size:10ul;Flow velocity:1.5ml/min
Gradient elution:

Claims (10)

1. a kind of compound of formula I:
2. a kind of Formula II compound:
3. a kind of formula III compound:
4. a kind of method for preparing compound of formula I, it is characterised in that:By posaconazole under oxidant effect, react in a solvent To compound of formula I,
5. a kind of method for preparing Formula II compound, it is characterised in that:By posaconazole under oxidant effect, react in a solvent Formula II compound is obtained,
6. a kind of method for preparing formula III compound, it is characterised in that:By posaconazole under oxidant effect, react in a solvent Formula III compound is obtained,
7. the method as any one of claim 4-6, wherein oxidant are selected from hydrogen peroxide, tert-butyl hydroperoxide, m-chloro One or more in benzoyl hydroperoxide or peracetic acid.
8. the method as any one of claim 4-6, wherein solvent are selected from DMF, dichloromethane, N- Methyl pyrrolidone, tetrahydrofuran, acetonitrile, Isosorbide-5-Nitrae-dioxane, ethyl acetate, dimethyl sulfoxide, toluene, ethanol, methanol, One or more in water.
9. the method as any one of claim 4-6, wherein reaction temperature are 10 DEG C~solvent boiling point.
10. application of the Formulas I described in the claim 1-3~formula III compound in the impurity reference substance of posaconazole raw material or preparation is prepared.
CN201510753583.XA 2015-11-06 2015-11-06 Noxafil impurities and preparation methods thereof Pending CN106674211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510753583.XA CN106674211A (en) 2015-11-06 2015-11-06 Noxafil impurities and preparation methods thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510753583.XA CN106674211A (en) 2015-11-06 2015-11-06 Noxafil impurities and preparation methods thereof

Publications (1)

Publication Number Publication Date
CN106674211A true CN106674211A (en) 2017-05-17

Family

ID=58864073

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510753583.XA Pending CN106674211A (en) 2015-11-06 2015-11-06 Noxafil impurities and preparation methods thereof

Country Status (1)

Country Link
CN (1) CN106674211A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107540665A (en) * 2016-06-24 2018-01-05 南京海润医药有限公司 A kind of impurity of posaconazole and the detection method of preparation method and posaconazole about material
CN111638281A (en) * 2020-05-28 2020-09-08 上海宣泰海门药业有限公司 Analysis method of related substances of posaconazole enteric-coated tablets
CN112697945A (en) * 2020-12-18 2021-04-23 卓和药业集团有限公司 Method for analyzing content of posaconazole enteric-coated tablets
CN114113412A (en) * 2021-12-15 2022-03-01 卓和药业集团股份有限公司 Analysis method of posaconazole impurity related substances

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101381342A (en) * 2007-09-06 2009-03-11 华东理工大学 Piperazine derivatives and applications thereof
CN103852528A (en) * 2012-12-07 2014-06-11 重庆莱美药业股份有限公司 Method for detecting posaconazole
CN104974143A (en) * 2015-05-12 2015-10-14 深圳致君制药有限公司 Quaternary ammonium salt compounds, and preparation method and application thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101381342A (en) * 2007-09-06 2009-03-11 华东理工大学 Piperazine derivatives and applications thereof
CN103852528A (en) * 2012-12-07 2014-06-11 重庆莱美药业股份有限公司 Method for detecting posaconazole
CN104974143A (en) * 2015-05-12 2015-10-14 深圳致君制药有限公司 Quaternary ammonium salt compounds, and preparation method and application thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107540665A (en) * 2016-06-24 2018-01-05 南京海润医药有限公司 A kind of impurity of posaconazole and the detection method of preparation method and posaconazole about material
CN111638281A (en) * 2020-05-28 2020-09-08 上海宣泰海门药业有限公司 Analysis method of related substances of posaconazole enteric-coated tablets
CN112697945A (en) * 2020-12-18 2021-04-23 卓和药业集团有限公司 Method for analyzing content of posaconazole enteric-coated tablets
CN114113412A (en) * 2021-12-15 2022-03-01 卓和药业集团股份有限公司 Analysis method of posaconazole impurity related substances
CN114113412B (en) * 2021-12-15 2024-04-16 卓和药业集团股份有限公司 Analysis method of posaconazole impurity related substances

Similar Documents

Publication Publication Date Title
US6858644B2 (en) Paclitaxel solvates
CN106674211A (en) Noxafil impurities and preparation methods thereof
JP2002522537A (en) Methods and compositions of improved omeprazole
DE10311065A1 (en) New 1-(cyclic amino-alkyl)-pyrimidin-2(1H)-one derivatives, are selective dopamine D3 receptor ligands useful for treating CNS disorders, especially schizophrenia or depression
CN102573483A (en) Triazine derivatives and their therapeutical applications
EP3263573B1 (en) Crystal of imidazo-oxazine, pharmaceutical composition containing said crystal, and method for producing said crystal
CN110204548B (en) Pyridazino triazole medicine molecule with sterilization and disinfection effects and preparation method and application thereof
CN107286220B (en) 1,2, 4-triazole coupled dihydromyricetin derivative and preparation method and application thereof
CN106749281A (en) A kind of preparation method of epinastine impurity A
WO2014167428A2 (en) Amorphous 4-(3-(4-cyano-3-(trifluoromethyl)phenyl)-5,5-dimethyl-4-oxo-2-thioxoimidazolidin-1-yl)-2-fluoro-n-methylbenzamide
CN107043345A (en) Preparation, structure and the purposes of the diketone Schiff base of 4-acetylbiphenyl hydrazone indoline 2,3
US20090325904A1 (en) Maleic acid monosalt of antiviral agent and pharmaceutical composition containing the same
CN109574975B (en) Crystal form of 7,8-dihydroxyflavone derivative, and preparation method and application thereof
CN111471080A (en) ocotillol type ginsengenin A-ring amino thiazole ring derivative and preparation method thereof
CN105461619B (en) A kind of preparation method of butyrate clevidipine
CN110447651B (en) Quinazolinone compound and application thereof in preparation or prevention and treatment of agricultural plant diseases
US20140275550A1 (en) Lansoprazole compound and novel preparation method thereof
CN111377910A (en) Posaconazole impurity and preparation method and application thereof
CN108329304A (en) A kind of preparation method of Itraconazole derivative
CN105001197A (en) Alogliptin derivative I, preparation method and application thereof
CN105753902B (en) A kind of preparation method of good fortune department Fluconazole
CN108373465B (en) Dabigatran etexilate impurity and preparation and detection methods thereof
CN106432077A (en) Preparation method of pixantrone dimaleate
KR20050059132A (en) Novel crystals
CN115028635B (en) Skeleton transition type berberine analogue and application thereof in preventing and treating agricultural diseases

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
CB02 Change of applicant information

Address after: 210042 -18, Xuanwu Avenue, Xuanwu District, Jiangsu, Nanjing, 699

Applicant after: JIANGSU SIMCERE PHARMACEUTICAL Co.,Ltd.

Applicant after: SIMCERE PHARMACEUTICAL Group

Address before: 210042 -18, Xuanwu Avenue, Xuanwu District, Jiangsu, Nanjing, 699

Applicant before: JIANGSU SIMCERE PHARMACEUTICAL Co.,Ltd.

Applicant before: NANJING SIMCERE DONGYUAN PHARMACEUTICA Co.,Ltd.

CB02 Change of applicant information
RJ01 Rejection of invention patent application after publication

Application publication date: 20170517

RJ01 Rejection of invention patent application after publication