HRP20100149T1 - Postupak priprave tiotropijevih soli - Google Patents

Postupak priprave tiotropijevih soli Download PDF

Info

Publication number
HRP20100149T1
HRP20100149T1 HR20100149T HRP20100149T HRP20100149T1 HR P20100149 T1 HRP20100149 T1 HR P20100149T1 HR 20100149 T HR20100149 T HR 20100149T HR P20100149 T HRP20100149 T HR P20100149T HR P20100149 T1 HRP20100149 T1 HR P20100149T1
Authority
HR
Croatia
Prior art keywords
formula
kat
compounds
denotes
alkyl
Prior art date
Application number
HR20100149T
Other languages
English (en)
Croatian (hr)
Inventor
Banholzer Rolf
Pfrengle Waldemar
Sieger Peter
Original Assignee
Boehringer Ingelheim International Gmbh
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34530660&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HRP20100149(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Boehringer Ingelheim International Gmbh filed Critical Boehringer Ingelheim International Gmbh
Publication of HRP20100149T1 publication Critical patent/HRP20100149T1/hr

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D451/00Heterocyclic compounds containing 8-azabicyclo [3.2.1] octane, 9-azabicyclo [3.3.1] nonane, or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane or granatane alkaloids, scopolamine; Cyclic acetals thereof
    • C07D451/02Heterocyclic compounds containing 8-azabicyclo [3.2.1] octane, 9-azabicyclo [3.3.1] nonane, or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane or granatane alkaloids, scopolamine; Cyclic acetals thereof containing not further condensed 8-azabicyclo [3.2.1] octane or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane; Cyclic acetals thereof
    • C07D451/04Heterocyclic compounds containing 8-azabicyclo [3.2.1] octane, 9-azabicyclo [3.3.1] nonane, or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane or granatane alkaloids, scopolamine; Cyclic acetals thereof containing not further condensed 8-azabicyclo [3.2.1] octane or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane; Cyclic acetals thereof with hetero atoms directly attached in position 3 of the 8-azabicyclo [3.2.1] octane or in position 7 of the 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring system
    • C07D451/06Oxygen atoms
    • C07D451/10Oxygen atoms acylated by aliphatic or araliphatic carboxylic acids, e.g. atropine, scopolamine
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P11/00Drugs for disorders of the respiratory system
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P11/00Drugs for disorders of the respiratory system
    • A61P11/06Antiasthmatics
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D451/00Heterocyclic compounds containing 8-azabicyclo [3.2.1] octane, 9-azabicyclo [3.3.1] nonane, or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane or granatane alkaloids, scopolamine; Cyclic acetals thereof
    • C07D451/02Heterocyclic compounds containing 8-azabicyclo [3.2.1] octane, 9-azabicyclo [3.3.1] nonane, or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane or granatane alkaloids, scopolamine; Cyclic acetals thereof containing not further condensed 8-azabicyclo [3.2.1] octane or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane; Cyclic acetals thereof
    • C07D451/04Heterocyclic compounds containing 8-azabicyclo [3.2.1] octane, 9-azabicyclo [3.3.1] nonane, or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane or granatane alkaloids, scopolamine; Cyclic acetals thereof containing not further condensed 8-azabicyclo [3.2.1] octane or 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring systems, e.g. tropane; Cyclic acetals thereof with hetero atoms directly attached in position 3 of the 8-azabicyclo [3.2.1] octane or in position 7 of the 3-oxa-9-azatricyclo [3.3.1.0<2,4>] nonane ring system
    • C07D451/06Oxygen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • General Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Medicinal Preparation (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
HR20100149T 2003-11-03 2010-03-16 Postupak priprave tiotropijevih soli HRP20100149T1 (hr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03025075 2003-11-03
PCT/EP2004/012268 WO2005042526A1 (fr) 2003-11-03 2004-10-29 Procede de production de sels de tiotropium, sels de tiotropium et formulations pharmaceutiques contenant ces sels

Publications (1)

Publication Number Publication Date
HRP20100149T1 true HRP20100149T1 (hr) 2010-04-30

Family

ID=34530660

Family Applications (1)

Application Number Title Priority Date Filing Date
HR20100149T HRP20100149T1 (hr) 2003-11-03 2010-03-16 Postupak priprave tiotropijevih soli

Country Status (35)

Country Link
US (1) US8686148B2 (fr)
EP (3) EP1682541B1 (fr)
JP (1) JP5165244B2 (fr)
KR (1) KR20060117334A (fr)
CN (3) CN101407514B (fr)
AR (1) AR046317A1 (fr)
AT (1) ATE460414T1 (fr)
AU (1) AU2004285683C1 (fr)
BR (1) BRPI0416136A (fr)
CA (1) CA2544348A1 (fr)
CO (1) CO5690553A2 (fr)
CY (2) CY1110048T1 (fr)
DE (1) DE502004010885D1 (fr)
DK (2) DK2067779T3 (fr)
EA (1) EA012326B1 (fr)
ES (2) ES2422729T3 (fr)
HK (3) HK1129111A1 (fr)
HR (1) HRP20100149T1 (fr)
IL (1) IL175023A (fr)
ME (1) ME00361B (fr)
MX (1) MXPA06004697A (fr)
MY (1) MY143364A (fr)
NO (1) NO335814B1 (fr)
NZ (1) NZ547276A (fr)
PE (1) PE20050446A1 (fr)
PL (2) PL2067779T3 (fr)
PT (2) PT1682541E (fr)
RS (2) RS51758B (fr)
SG (1) SG137859A1 (fr)
SI (2) SI1682541T1 (fr)
TW (2) TWI435876B (fr)
UA (1) UA82413C2 (fr)
UY (1) UY28590A1 (fr)
WO (1) WO2005042526A1 (fr)
ZA (1) ZA200602342B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT1682541E (pt) 2003-11-03 2010-04-14 Boehringer Ingelheim Int Processo para a preparação de sais de tiotrópio
PL2083007T3 (pl) * 2003-11-03 2013-09-30 Boehringer Ingelheim Int Sole tiotropium, sposoby ich wytwarzania oraz zawierające je kompozycje farmaceutyczne
US20060079544A1 (en) * 2004-08-13 2006-04-13 Boehringer Ingelheim International Gmbh Medicaments for the prevention or treatment of alveolar pneumonia comprising an anticholinergic
AU2006259202B2 (en) * 2005-06-15 2012-05-10 Boehringer Ingelheim International Gmbh Process for preparing tiotropium salts, tiotropium salts as such and pharmaceutical compositions thereof
DE102005035112A1 (de) * 2005-07-27 2007-02-15 Boehringer Ingelheim Pharma Gmbh & Co. Kg Neues Verfahren zur Herstellung von Tiotropiumsalzen unter Anwendung von in organischen Lösungsmitteln löslichen N-Methylscopiniumsalzen
TW200738634A (en) * 2005-08-02 2007-10-16 Astrazeneca Ab New salt
EP2123650B1 (fr) 2005-12-19 2012-04-04 Sicor, Inc. Nouvelle forme de bromure de tiotropium et son procédé de préparation
CA2634984C (fr) * 2006-01-04 2014-05-06 Boehringer Ingelheim International Gmbh Utilisation des sels de tiotropium dans le traitement de l'asthme modere persistant
EP1953156A1 (fr) * 2007-01-29 2008-08-06 Boehringer Ingelheim Pharma GmbH & Co. KG Procédé de fabrication de sels de scopinium
CZ201241A3 (cs) 2012-01-20 2013-07-31 Zentiva, K.S. Nové polymorfní formy tiotropium jodidu a zpusob jejich prípravy
WO2014042605A1 (fr) * 2012-09-11 2014-03-20 Mahmut Bilgic Nouvelle forme cristalline du bromure de tiotropium
JP6042197B2 (ja) * 2012-12-11 2016-12-14 エア・ウォーター株式会社 肺障害治療剤

Family Cites Families (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597329A (en) * 1947-08-06 1952-05-20 Merck & Co Inc Process for anion exchange of thiamin salts
US3551492A (en) * 1967-10-31 1970-12-29 Ciba Geigy Corp N,n'-diaminoalkoxy-benzyl-diamino-alkanes and the salts thereof
US4570630A (en) 1983-08-03 1986-02-18 Miles Laboratories, Inc. Medicament inhalation device
JPS6165885A (ja) 1984-09-07 1986-04-04 Tanabe Seiyaku Co Ltd 新規合成中間体及びその製法
FI88112C (fi) 1985-07-30 1993-04-13 Glaxo Group Ltd Anordning foer administrering av laekemedel till patienter
US5610163A (en) * 1989-09-16 1997-03-11 Boehringer Ingelheim Gmbh Esters of thienyl carboxylic acids and amino alcohols and their quaternization products
DE3931041C2 (de) * 1989-09-16 2000-04-06 Boehringer Ingelheim Kg Ester von Thienylcarbonsäuren mit Aminoalkoholen, ihre Quaternierungsprodukte, Verfahren zu ihrer Herstellung und diese enthaltende Arzneimittel
JP3302647B2 (ja) 1992-04-24 2002-07-15 小野薬品工業株式会社 フェニルアルカン酸エステルの塩酸塩、およびその製造方法
DE4318455A1 (de) 1993-06-03 1994-12-08 Boehringer Ingelheim Kg Kapselhalterung
DE19536902A1 (de) 1995-10-04 1997-04-10 Boehringer Ingelheim Int Vorrichtung zur Hochdruckerzeugung in einem Fluid in Miniaturausführung
JP4023086B2 (ja) 1999-12-27 2007-12-19 和光純薬工業株式会社 スルホニウム塩化合物
ES2227268T3 (es) * 2000-10-12 2005-04-01 BOEHRINGER INGELHEIM PHARMA GMBH &amp; CO.KG Nuevos polvos para inhalacion con contenido en tiotropio.
US6908928B2 (en) * 2000-10-12 2005-06-21 Bi Pharma Kg. Crystalline tiotropium bromide monohydrate, processes for the preparation thereof, and pharmaceutical compositions
TR200402579T4 (tr) 2000-10-12 2004-12-21 Boehringer Ingelheim Pharma Gmbh & Co. Kg Kristalin monohidrat, bunun imalat yöntemi ve bir ilaç maddesinin imalatında kullanımı
UA75375C2 (en) 2000-10-12 2006-04-17 Boehringer Ingelheim Pharma Method for producing powdery preparations for inhaling
US20020111363A1 (en) * 2000-10-31 2002-08-15 Karin Drechsel Inhalable formulation of a solution containing a tiotropium salt
EA007604B1 (ru) * 2000-10-31 2006-12-29 Бёрингер Ингельхайм Фарма Гмбх Унд Ко. Кг Ингаляционная композиция в виде раствора с солью тиотропия
US20020137764A1 (en) * 2000-10-31 2002-09-26 Karin Drechsel Inhalable formulation of a solution containing a tiotropium salt
US20020193393A1 (en) * 2001-03-07 2002-12-19 Michel Pairet Pharmaceutical compositions based on anticholinergics and PDE-IV inhibitors
US20020183292A1 (en) * 2000-10-31 2002-12-05 Michel Pairet Pharmaceutical compositions based on anticholinergics and corticosteroids
US20020193392A1 (en) * 2000-11-13 2002-12-19 Christel Schmelzer Pharmaceutical compositions based on tiotropium salts of salts of salmeterol
DE10056104A1 (de) * 2000-11-13 2002-05-23 Boehringer Ingelheim Pharma Neue Arzneimittelkompositionen auf der Basis von Tiotropiumsalzen und Salzen des Salmeterols
DE10061877A1 (de) 2000-12-12 2002-06-13 Basf Ag Verfahren zur Herstellung wässriger Copolymerisatdispersionen von Copolymerisaten aus Kohlenmonoxid und wenigstens einer olefinisch ungesättigten Verbindung
DE10064816A1 (de) * 2000-12-22 2002-06-27 Boehringer Ingelheim Pharma Verfahren zur Herstellung eines Anticholinergikums
US6506900B1 (en) * 2001-01-31 2003-01-14 Boehringer Ingelheim Pharma Ag Process for preparing a scopine ester intermediate
DE10111843A1 (de) * 2001-03-13 2002-09-19 Boehringer Ingelheim Pharma Verbindungen zur Behandlung von inflammatorischen Erkrankungen
US20020193394A1 (en) * 2001-03-13 2002-12-19 Bernd Disse Compounds for treating inflammatory diseases
US20030070679A1 (en) * 2001-06-01 2003-04-17 Boehringer Ingelheim Pharma Kg Capsules containing inhalable tiotropium
US6608055B2 (en) * 2001-06-22 2003-08-19 Boehringer Ingelheim Pharma Kg Crystalline anticholinergic, processes for preparing it and its use for preparing a pharmaceutical composition
US6919325B2 (en) * 2001-09-14 2005-07-19 Boehringer Ingelheim Pharma Kg Pharmaceutical compositions containing tiotropium salts and low-solubility salmeterol salts
DE10200943A1 (de) * 2002-01-12 2003-07-24 Boehringer Ingelheim Pharma Verfahren zur Herstellung von Scopinestern
AU2003201745A1 (en) 2002-02-11 2003-09-04 Pfizer Limited Nicotinamide derivatives and a tiotropium salt in combination for the treatment of e.g. inflammatory, allergic and respiratory diseases
GB0203193D0 (en) 2002-02-11 2002-03-27 Pfizer Ltd Nicotinamide derivatives useful as pde4 inhibitors
US20030229227A1 (en) * 2002-03-16 2003-12-11 Boehringer Ingelheim Pharma Gmbh & Co. Kg New difurylglycolic acid esters, processes for the preparation thereof as well as the use thereof as pharmaceutical compositions
DE10212264A1 (de) 2002-03-20 2003-10-02 Boehringer Ingelheim Pharma Kristallines Mikronisat, Verfahren zu dessen Herstellung und dessen Verwendung zur Herstellung eines Arzneimittels
WO2003084509A1 (fr) 2002-04-04 2003-10-16 Boehringer Ingelheim Pharma Gmbh & Co. Kg Preparations en poudre pour inhalation
US20030235538A1 (en) * 2002-04-09 2003-12-25 Boehringer Ingelheim Pharma Gmbh & Co. Kg Method for the administration of an anticholinergic by inhalation
UA80123C2 (en) 2002-04-09 2007-08-27 Boehringer Ingelheim Pharma Inhalation kit comprising inhalable powder of tiotropium
DE10216036A1 (de) 2002-04-11 2003-10-23 Boehringer Ingelheim Pharma Aerosolformulierung für die Inhalation enthaltend ein Tiotropiumsalz
US6908055B2 (en) * 2003-02-27 2005-06-21 Tandberg Data Asa System for extracting magnetic recording tape from a tape cartridge for engagement with a take-up reel
US20050030040A1 (en) * 2003-06-27 2005-02-10 Mitch Budniak Electrical testing device having voice annunciator
PL2083007T3 (pl) * 2003-11-03 2013-09-30 Boehringer Ingelheim Int Sole tiotropium, sposoby ich wytwarzania oraz zawierające je kompozycje farmaceutyczne
US7968717B2 (en) * 2003-11-03 2011-06-28 Boehringer Ingelhein International Gmbh Crystalline anhydrate with anticholinergic efficacy
PT1682541E (pt) 2003-11-03 2010-04-14 Boehringer Ingelheim Int Processo para a preparação de sais de tiotrópio
SE0303270L (sv) * 2003-12-03 2005-06-04 Microdrug Ag Metod för administration av tiotropium
SE0303570L (sv) * 2003-12-03 2005-06-04 Microdrug Ag Fukt-känslig medicinsk produkt
DE102004041253A1 (de) * 2004-08-26 2006-03-02 Boehringer Ingelheim Pharma Gmbh & Co. Kg Neues Verfahren zur Herstellung von Tiotropiumsalzen
AU2006259202B2 (en) * 2005-06-15 2012-05-10 Boehringer Ingelheim International Gmbh Process for preparing tiotropium salts, tiotropium salts as such and pharmaceutical compositions thereof

Also Published As

Publication number Publication date
RS20060292A (en) 2008-08-07
UA82413C2 (uk) 2008-04-10
TWI363758B (en) 2012-05-11
CY1114157T1 (el) 2016-08-31
NO335814B1 (no) 2015-02-23
US8686148B2 (en) 2014-04-01
CN102070630B (zh) 2013-04-17
CN102070630A (zh) 2011-05-25
ES2422729T3 (es) 2013-09-13
SI1682541T1 (sl) 2010-06-30
HK1129111A1 (en) 2009-11-20
EP2067779B1 (fr) 2013-04-24
PT1682541E (pt) 2010-04-14
ME00361B (fr) 2011-10-10
EP2067779B9 (fr) 2013-10-16
EA200600886A1 (ru) 2006-10-27
CN101407514A (zh) 2009-04-15
MY143364A (en) 2011-04-29
PE20050446A1 (es) 2005-08-02
EP1682541B1 (fr) 2010-03-10
ZA200602342B (en) 2007-06-27
DK1682541T3 (da) 2010-06-28
EA012326B1 (ru) 2009-08-28
SI2067779T1 (sl) 2013-08-30
HK1153409A1 (en) 2012-03-30
RS51758B (en) 2011-12-31
MXPA06004697A (es) 2006-07-05
NO20061440L (no) 2006-07-12
PL1682541T3 (pl) 2010-08-31
UY28590A1 (es) 2005-06-30
KR20060117334A (ko) 2006-11-16
AU2004285683B2 (en) 2011-04-21
AR046317A1 (es) 2005-11-30
IL175023A (en) 2011-02-28
CN1882582A (zh) 2006-12-20
EP1682541A1 (fr) 2006-07-26
WO2005042526A1 (fr) 2005-05-12
AU2004285683A1 (en) 2005-05-12
PL2067779T3 (pl) 2013-09-30
JP5165244B2 (ja) 2013-03-21
BRPI0416136A (pt) 2007-01-02
MEP51308A (en) 2011-05-10
IL175023A0 (en) 2006-08-20
NZ547276A (en) 2009-08-28
SG137859A1 (en) 2007-12-28
CO5690553A2 (es) 2006-10-31
HK1099748A1 (en) 2007-08-24
EP2067779A1 (fr) 2009-06-10
US20050131007A1 (en) 2005-06-16
TW200526653A (en) 2005-08-16
CY1110048T1 (el) 2015-01-14
JP2007509893A (ja) 2007-04-19
CN100549010C (zh) 2009-10-14
EP2336126A1 (fr) 2011-06-22
TW201231465A (en) 2012-08-01
ES2342468T3 (es) 2010-07-07
CA2544348A1 (fr) 2005-05-12
AU2004285683C1 (en) 2011-09-08
PT2067779E (pt) 2013-07-25
DE502004010885D1 (de) 2010-04-22
CN101407514B (zh) 2013-05-29
TWI435876B (zh) 2014-05-01
DK2067779T3 (da) 2013-07-29
ATE460414T1 (de) 2010-03-15

Similar Documents

Publication Publication Date Title
HRP20100149T1 (hr) Postupak priprave tiotropijevih soli
Cullinane et al. Hexacyclen complexes of inorganic anions: bonding forces, structure, and selectivity
GB1139918A (en) Dialkylamine derivatives, polymers produced therefrom and their use as flocculating agents
RU2005128348A (ru) Соли с цианоборатными анионами
UA83324C2 (ru) Способ получения фторорганических соединений в спиртовых растворителях
CO5690554A2 (es) Nuevas sales de tiotropio, procedimientos para su preparacion asi como formulaciones medicamentosas que las contienen
GB627139A (en) Improvements in and relating to the preparation of quaternary ammonium salts of substituted propanolamines, allylamines and propylamines
JP2014520901A5 (fr)
US2909525A (en) Anti-fungal compounds
AU609870B2 (en) Process for preparing penicillanic acid derivatives by lead catalysed dehalogenation of the corresponding 6-halopenicillanic acid derivatives
CN106588680B (zh) 一种制备十二烷基甜菜碱的方法
GB1467739A (en) Therapeutic compositions containing methylamine derivatives or their salts
CN109535023B (zh) 一种dtpa偏中性盐及其制备方法与应用
ES367113A1 (es) Un metodo para la preparacion de una sal o ester de acido (cis-1,2-epoxipropil) fosfonico.
Neivelt et al. The Base Strengths of N, N'-Dialkylguanidines
US2965676A (en) Preparation of tertiary hydrocarbon derivatives of oxamide
CN111620786B (zh) 一种活性溴季铵盐、制备方法及应用
JPH02115151A (ja) α―アミノアルカノールの製造方法
Childers, Jr et al. Correction. Synthesis of a Monodentate Ethylenediamine Complex of Chromium (III) and Kinetics of Hydrolysis of Tetraaquoethylenediaminechromium (III) Cation and of Pentaaquo (2-aminoethylammonium) chromium (III) Cation
GB1083593A (en) Method of producing higher fatty alkyl dilower benzyl ammonium halides, and product
GB1439378A (fr)
GB688726A (en) Thiolurethanes and quaternary ammonium salts derived therefrom, and processes of producing same
GB676746A (en) Improvements in the preparation of photographic emulsions
JPS5921861B2 (ja) 塩基性トリフエニルアルケン誘導体の製造方法
GB718032A (en) Improvements in or relating to the purification of oxytetracycline