CN103755648B - 一种吉非替尼的新杂质及其制备方法 - Google Patents
一种吉非替尼的新杂质及其制备方法 Download PDFInfo
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- CN103755648B CN103755648B CN201310711981.6A CN201310711981A CN103755648B CN 103755648 B CN103755648 B CN 103755648B CN 201310711981 A CN201310711981 A CN 201310711981A CN 103755648 B CN103755648 B CN 103755648B
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- formula
- gefitinib
- reaction
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- 239000005411 L01XE02 - Gefitinib Substances 0.000 title claims abstract description 39
- XGALLCVXEZPNRQ-UHFFFAOYSA-N gefitinib Chemical compound C=12C=C(OCCCN3CCOCC3)C(OC)=CC2=NC=NC=1NC1=CC=C(F)C(Cl)=C1 XGALLCVXEZPNRQ-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229960002584 gefitinib Drugs 0.000 title claims abstract description 37
- 239000012535 impurity Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 49
- QMNUDYFKZYBWQX-UHFFFAOYSA-N 1H-quinazolin-4-one Chemical compound C1=CC=C2C(=O)N=CNC2=C1 QMNUDYFKZYBWQX-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000002904 solvent Substances 0.000 claims abstract description 13
- 239000003513 alkali Substances 0.000 claims abstract description 9
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 9
- -1 chloro-4-fluoroanilino Chemical group 0.000 claims abstract description 5
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 78
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 42
- 239000000243 solution Substances 0.000 claims description 37
- 239000007787 solid Substances 0.000 claims description 33
- 238000003756 stirring Methods 0.000 claims description 31
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 24
- 150000001875 compounds Chemical class 0.000 claims description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 22
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000000706 filtrate Substances 0.000 claims description 14
- TYHUGKGZNOULKD-UHFFFAOYSA-N 1-fluoro-2-iodobenzene Chemical compound FC1=CC=CC=C1I TYHUGKGZNOULKD-UHFFFAOYSA-N 0.000 claims description 12
- 239000012046 mixed solvent Substances 0.000 claims description 10
- 238000001291 vacuum drying Methods 0.000 claims description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 238000002425 crystallisation Methods 0.000 claims description 8
- 230000008025 crystallization Effects 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 8
- 239000012044 organic layer Substances 0.000 claims description 8
- 238000010792 warming Methods 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 7
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 claims description 4
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 4
- 239000012312 sodium hydride Substances 0.000 claims description 4
- 229910000104 sodium hydride Inorganic materials 0.000 claims description 4
- MFRIHAYPQRLWNB-UHFFFAOYSA-N sodium tert-butoxide Chemical compound [Na+].CC(C)(C)[O-] MFRIHAYPQRLWNB-UHFFFAOYSA-N 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- OVEHNNQXLPJPPL-UHFFFAOYSA-N lithium;n-propan-2-ylpropan-2-amine Chemical compound [Li].CC(C)NC(C)C OVEHNNQXLPJPPL-UHFFFAOYSA-N 0.000 claims description 2
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 claims description 2
- 239000002585 base Substances 0.000 claims 3
- 230000002596 correlated effect Effects 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract description 30
- 238000004440 column chromatography Methods 0.000 abstract description 14
- 239000003814 drug Substances 0.000 abstract description 10
- SPEUIVXLLWOEMJ-UHFFFAOYSA-N 1,1-dimethoxyethane Chemical compound COC(C)OC SPEUIVXLLWOEMJ-UHFFFAOYSA-N 0.000 abstract description 8
- 229940079593 drug Drugs 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 6
- 125000004802 cyanophenyl group Chemical group 0.000 abstract description 5
- 239000012452 mother liquor Substances 0.000 abstract description 5
- 238000003908 quality control method Methods 0.000 abstract description 5
- QEZIFBAXJMHDJP-UHFFFAOYSA-N n-chloro-4-fluoroaniline Chemical compound FC1=CC=C(NCl)C=C1 QEZIFBAXJMHDJP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000011160 research Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 13
- 229910052799 carbon Inorganic materials 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000012043 crude product Substances 0.000 description 9
- 229960004756 ethanol Drugs 0.000 description 9
- 238000004128 high performance liquid chromatography Methods 0.000 description 8
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 238000001228 spectrum Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical group [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000000967 suction filtration Methods 0.000 description 4
- YSEMCVGMNUUNRK-UHFFFAOYSA-N 3-chloro-4-fluoroaniline Chemical compound NC1=CC=C(F)C(Cl)=C1 YSEMCVGMNUUNRK-UHFFFAOYSA-N 0.000 description 3
- ZSXGLVDWWRXATF-UHFFFAOYSA-N N,N-dimethylformamide dimethyl acetal Chemical compound COC(OC)N(C)C ZSXGLVDWWRXATF-UHFFFAOYSA-N 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000001819 mass spectrum Methods 0.000 description 3
- 239000008213 purified water Substances 0.000 description 3
- XILIYVSXLSWUAI-UHFFFAOYSA-N 2-(diethylamino)ethyl n'-phenylcarbamimidothioate;dihydrobromide Chemical compound Br.Br.CCN(CC)CCSC(N)=NC1=CC=CC=C1 XILIYVSXLSWUAI-UHFFFAOYSA-N 0.000 description 2
- DMSRMHGCZUXCMJ-UHFFFAOYSA-N 6,7-dimethoxy-1h-quinazolin-4-one Chemical compound C1=NC(O)=C2C=C(OC)C(OC)=CC2=N1 DMSRMHGCZUXCMJ-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-WFGJKAKNSA-N Dimethyl sulfoxide Chemical compound [2H]C([2H])([2H])S(=O)C([2H])([2H])[2H] IAZDPXIOMUYVGZ-WFGJKAKNSA-N 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000002512 chemotherapy Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 229960000935 dehydrated alcohol Drugs 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229940084651 iressa Drugs 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010413 mother solution Substances 0.000 description 2
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 2
- 239000013558 reference substance Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000002390 rotary evaporation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- WDGXWUJUPXLCDK-UHFFFAOYSA-N 2-[3-[4-(3-chloro-4-fluoroanilino)-7-methoxyquinazolin-6-yl]oxypropylamino]ethanol Chemical compound C=12C=C(OCCCNCCO)C(OC)=CC2=NC=NC=1NC1=CC=C(F)C(Cl)=C1 WDGXWUJUPXLCDK-UHFFFAOYSA-N 0.000 description 1
- ZAPMJTYDMYNERA-UHFFFAOYSA-N 4-chloro-n-fluoroaniline Chemical compound FNC1=CC=C(Cl)C=C1 ZAPMJTYDMYNERA-UHFFFAOYSA-N 0.000 description 1
- IQWXTDMHBQBADK-UHFFFAOYSA-N 4-defluoro-4-hydroxy Gefitinib Chemical compound C=12C=C(OCCCN3CCOCC3)C(OC)=CC2=NC=NC=1NC1=CC=C(O)C(Cl)=C1 IQWXTDMHBQBADK-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- YNAVUWVOSKDBBP-UHFFFAOYSA-N Morpholine Chemical group C1COCCN1 YNAVUWVOSKDBBP-UHFFFAOYSA-N 0.000 description 1
- WTDLLXPLBLPTEP-UHFFFAOYSA-N N-(4-chloro-3-fluorophenyl)-7-methoxy-6-(3-morpholin-4-ylpropoxy)quinazolin-4-amine Chemical compound ClC1=C(C=C(C=C1)NC1=NC=NC2=CC(=C(C=C12)OCCCN1CCOCC1)OC)F WTDLLXPLBLPTEP-UHFFFAOYSA-N 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- JLVTVCRXFMLUIF-UHFFFAOYSA-N O-Desmorpholinopropyl Gefitinib Chemical compound C=12C=C(O)C(OC)=CC2=NC=NC=1NC1=CC=C(F)C(Cl)=C1 JLVTVCRXFMLUIF-UHFFFAOYSA-N 0.000 description 1
- IFMMYZUUCFPEHR-UHFFFAOYSA-N O-desmethyl Gefitinib Chemical compound ClC=1C=C(C=CC=1F)NC1=NC=NC2=CC(=C(C=C12)OCCCN1CCOCC1)O IFMMYZUUCFPEHR-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000007171 acid catalysis Methods 0.000 description 1
- 239000012491 analyte Substances 0.000 description 1
- ANUZKYYBDVLEEI-UHFFFAOYSA-N butane;hexane;lithium Chemical compound [Li]CCCC.CCCCCC ANUZKYYBDVLEEI-UHFFFAOYSA-N 0.000 description 1
- 238000001460 carbon-13 nuclear magnetic resonance spectrum Methods 0.000 description 1
- 230000000973 chemotherapeutic effect Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- MACWUZNMKDMGGJ-UHFFFAOYSA-N lithium;oxolane;n-propan-2-ylpropan-2-amine Chemical compound [Li].C1CCOC1.CC(C)NC(C)C MACWUZNMKDMGGJ-UHFFFAOYSA-N 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 230000001394 metastastic effect Effects 0.000 description 1
- 206010061289 metastatic neoplasm Diseases 0.000 description 1
- HZVOZRGWRWCICA-UHFFFAOYSA-N methanediyl Chemical compound [CH2] HZVOZRGWRWCICA-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 208000002154 non-small cell lung carcinoma Diseases 0.000 description 1
- 230000005311 nuclear magnetism Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000007867 post-reaction treatment Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000011125 single therapy Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- DNEGUUKFMQTAGX-UHFFFAOYSA-N sodium;2-methylpropan-2-olate;oxolane Chemical compound [Na+].CC(C)(C)[O-].C1CCOC1 DNEGUUKFMQTAGX-UHFFFAOYSA-N 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 208000029729 tumor suppressor gene on chromosome 11 Diseases 0.000 description 1
- 229940121358 tyrosine kinase inhibitor Drugs 0.000 description 1
- 239000005483 tyrosine kinase inhibitor Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/70—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings condensed with carbocyclic rings or ring systems
- C07D239/72—Quinazolines; Hydrogenated quinazolines
- C07D239/86—Quinazolines; Hydrogenated quinazolines with hetero atoms directly attached in position 4
- C07D239/88—Oxygen atoms
- C07D239/91—Oxygen atoms with aryl or aralkyl radicals attached in position 2 or 3
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
Description
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CN201310711981.6A CN103755648B (zh) | 2013-12-20 | 2013-12-20 | 一种吉非替尼的新杂质及其制备方法 |
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CN201310711981.6A CN103755648B (zh) | 2013-12-20 | 2013-12-20 | 一种吉非替尼的新杂质及其制备方法 |
Publications (2)
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CN103755648A CN103755648A (zh) | 2014-04-30 |
CN103755648B true CN103755648B (zh) | 2015-11-18 |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015188318A1 (en) * | 2014-06-10 | 2015-12-17 | Scinopharm (Changshu) Pharmaceuticals, Ltd. | Process for preparing quinazoline derivative |
CN104817506A (zh) * | 2015-05-06 | 2015-08-05 | 山东新时代药业有限公司 | 喹唑啉氮氧化物 |
CN106198778B (zh) * | 2016-06-24 | 2018-11-20 | 南京优科制药有限公司 | 一种同时测定吉非替尼及其有关物质的方法 |
CN108395410A (zh) * | 2018-05-09 | 2018-08-14 | 日照市普达医药科技有限公司 | 一种苯胺喹唑啉化合物及其在抗肿瘤药物中的应用 |
CN114213319A (zh) * | 2021-12-29 | 2022-03-22 | 南京仁为医药科技有限公司 | 吡非尼酮杂质的制备方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102030716A (zh) * | 2009-09-30 | 2011-04-27 | 中山大学 | 一种吉非替尼的制备方法 |
CN102659716A (zh) * | 2012-05-02 | 2012-09-12 | 北京国联诚辉医药技术有限公司 | 4-甲氧基-2-胺基-3-[3-(4-吗啉基)丙氧基]苯腈的制备方法及吉非替尼的制备工艺 |
-
2013
- 2013-12-20 CN CN201310711981.6A patent/CN103755648B/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102030716A (zh) * | 2009-09-30 | 2011-04-27 | 中山大学 | 一种吉非替尼的制备方法 |
CN102659716A (zh) * | 2012-05-02 | 2012-09-12 | 北京国联诚辉医药技术有限公司 | 4-甲氧基-2-胺基-3-[3-(4-吗啉基)丙氧基]苯腈的制备方法及吉非替尼的制备工艺 |
Non-Patent Citations (5)
Title |
---|
HPLC 测定易瑞沙中的吉非替尼及有关物质;陈帅 等;《华西药学杂质》;20130430;第28卷(第2期);全文 * |
Identification of Degradant Impurity in Gefitinib by Using Validated RRLC Method;Madiredddy V. et al.;《American Journal of Analytical Chemistry》;20110225;第2卷(第1期);第76页左栏 * |
原料药有机杂质分析与研究流程;刘敏 等;《北方药学》;20130831;第10卷(第8期);全文 * |
吉非替尼含量测定方法研究进展;裴丽 等;《实用药物与临床》;20130731;第16卷(第7期);全文 * |
药物的杂质及杂质检查;许润娟;《中医药学刊》;20050731;第23卷(第7期);全文 * |
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Address after: 210046 Nanjing economic and Technological Development Zone, Jiangsu Heng Road, No. 28 Patentee after: NANJING YOKO BIOMEDICAL R & D Ltd. Patentee after: NANJING YOKO PHARMACEUTICAL Co.,Ltd. Patentee after: NANJING YOKO BIOLOGICAL PHARMACEUTICAL GROUP Co.,Ltd. Address before: 210046 Nanjing economic and Technological Development Zone, Jiangsu Heng Road, No. 28 Patentee before: NANJING YOKO BIOMEDICAL R & D Ltd. Patentee before: NANJING YOKO PHARMACEUTICAL Co.,Ltd. Patentee before: Nanjing uniclever biological pharmaceutical Limited by Share Ltd. Address after: 210046 Nanjing economic and Technological Development Zone, Jiangsu Heng Road, No. 28 Patentee after: NANJING YOKO BIOMEDICAL R & D Ltd. Patentee after: NANJING YOKO PHARMACEUTICAL Co.,Ltd. Patentee after: Nanjing uniclever biological pharmaceutical Limited by Share Ltd. Address before: 210046 Nanjing economic and Technological Development Zone, Jiangsu Heng Road, No. 28 Patentee before: NANJING YOKO BIOMEDICAL R & D Ltd. Patentee before: NANJING YOKO PHARMACEUTICAL Co.,Ltd. |
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Granted publication date: 20151118 |