ATE365171T1 - Verfahren zur herstellung einer epoxyverbindung - Google Patents

Verfahren zur herstellung einer epoxyverbindung

Info

Publication number
ATE365171T1
ATE365171T1 AT96945103T AT96945103T ATE365171T1 AT E365171 T1 ATE365171 T1 AT E365171T1 AT 96945103 T AT96945103 T AT 96945103T AT 96945103 T AT96945103 T AT 96945103T AT E365171 T1 ATE365171 T1 AT E365171T1
Authority
AT
Austria
Prior art keywords
sup
group
chr
hydroxyalkyl
hydroxycarbonyl
Prior art date
Application number
AT96945103T
Other languages
English (en)
Inventor
John Ng
Ping Wang
Julio Baez
Chin Liu
Dennis Anderson
Jon Lawson
Dernhard Erb
Joseph Wieczorek
Gennaro Mucciariello
Fortunato Vanzanella
Sastry Kunda
Leo Letendre
Mark Pozzo
Yuen-Lung Sing
Edward E Yonan
Original Assignee
Searle Llc
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 Searle Llc filed Critical Searle Llc
Application granted granted Critical
Publication of ATE365171T1 publication Critical patent/ATE365171T1/de

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J71/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J21/00—Normal steroids containing carbon, hydrogen, halogen or oxygen having an oxygen-containing hetero ring spiro-condensed with the cyclopenta(a)hydrophenanthrene skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J21/00—Normal steroids containing carbon, hydrogen, halogen or oxygen having an oxygen-containing hetero ring spiro-condensed with the cyclopenta(a)hydrophenanthrene skeleton
    • C07J21/001—Lactones
    • C07J21/003—Lactones at position 17
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J31/00—Normal steroids containing one or more sulfur atoms not belonging to a hetero ring
    • C07J31/006—Normal steroids containing one or more sulfur atoms not belonging to a hetero ring not covered by C07J31/003
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J53/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton has been modified by condensation with a carbocyclic rings or by formation of an additional ring by means of a direct link between two ring carbon atoms, including carboxyclic rings fused to the cyclopenta(a)hydrophenanthrene skeleton are included in this class
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J53/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton has been modified by condensation with a carbocyclic rings or by formation of an additional ring by means of a direct link between two ring carbon atoms, including carboxyclic rings fused to the cyclopenta(a)hydrophenanthrene skeleton are included in this class
    • C07J53/002—Carbocyclic rings fused
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J71/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
    • C07J71/0005—Oxygen-containing hetero ring
    • C07J71/001—Oxiranes
    • C07J71/0015—Oxiranes at position 9(11)
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P33/00—Preparation of steroids
    • C12P33/005—Degradation of the lateral chains at position 17
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P33/00—Preparation of steroids
    • C12P33/06—Hydroxylating
    • C12P33/08—Hydroxylating at 11 position
    • C12P33/10—Hydroxylating at 11 position at 11 alpha-position
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/02—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving viable microorganisms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Zoology (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Biochemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • Genetics & Genomics (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • Molecular Biology (AREA)
  • Steroid Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Epoxy Compounds (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
AT96945103T 1995-12-11 1996-12-11 Verfahren zur herstellung einer epoxyverbindung ATE365171T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US845595P 1995-12-11 1995-12-11
US08/763,910 US5981744A (en) 1995-12-11 1996-12-11 Processes for preparation of 9,11-epoxy steroids and intermediates useful therein

Publications (1)

Publication Number Publication Date
ATE365171T1 true ATE365171T1 (de) 2007-07-15

Family

ID=26678218

Family Applications (1)

Application Number Title Priority Date Filing Date
AT96945103T ATE365171T1 (de) 1995-12-11 1996-12-11 Verfahren zur herstellung einer epoxyverbindung

Country Status (12)

Country Link
US (13) US5981744A (de)
EP (1) EP0973791B1 (de)
JP (2) JP4146897B2 (de)
CN (1) CN100384866C (de)
AT (1) ATE365171T1 (de)
DE (1) DE69637140T2 (de)
DK (1) DK0973791T3 (de)
EA (1) EA009176B1 (de)
ES (1) ES2287943T3 (de)
IL (2) IL124631A (de)
PT (1) PT973791E (de)
WO (1) WO1997021720A2 (de)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5981744A (en) 1995-12-11 1999-11-09 G. D. Searle And Co. Processes for preparation of 9,11-epoxy steroids and intermediates useful therein
US20020038021A1 (en) * 1995-12-11 2002-03-28 Barton Kathleen P. Eplerenone crystalline form exhibiting enhanced dissolution rate
US20050267302A1 (en) * 1995-12-11 2005-12-01 G.D. Searle & Co. Eplerenone crystalline form exhibiting enhanced dissolution rate
US20020045746A1 (en) * 1995-12-11 2002-04-18 Barton Kathleen P. Eplerenone crystalline form
PT944644E (pt) * 1996-12-11 2003-02-28 Searle & Co Processos para a preparacao de esteroides 9,11-epoxi e intermediarios uteis para esse efeito
EP1148061B1 (de) * 1996-12-11 2007-10-17 G.D. Searle LLC. Epoxidierungsverfahren
US6887991B1 (en) 1996-12-11 2005-05-03 G. D. Searle & Company Processes for preparation of 9, 11-epoxy steroids and intermediates useful therein
PT1955700E (pt) 1999-09-30 2011-05-04 Harbor Biosciences Inc Tratamento terap?utico de doen?as associadas ao receptor de androg?nios
EA008449B1 (ru) * 1999-12-08 2007-06-29 Фармация Корпорейшн Кристаллическая форма эплеренона
US20030083493A1 (en) * 1999-12-08 2003-05-01 Barton Kathleen P. Eplerenone drug substance having high phase purity
US6716829B2 (en) 2000-07-27 2004-04-06 Pharmacia Corporation Aldosterone antagonist and cyclooxygenase-2 inhibitor combination therapy to prevent or treat inflammation-related cardiovascular disorders
AU2003220251A1 (en) * 2002-03-22 2003-10-13 Pharmacia Corporation C-17 spirolactonization and 6,7 oxidation of steroids
US7235655B2 (en) 2002-03-22 2007-06-26 Pharmacia & Upjohn Company Processes to prepare eplerenone
US20040034215A1 (en) * 2002-08-16 2004-02-19 White Michael J. 5-Androsten-3beta-ol steroid intermediates and processes for their preparation
US20070066579A1 (en) * 2002-08-16 2007-03-22 White Michael J 5-androsten-3beta-ol steroid intermediates and processs for their preparation
EP1560841A1 (de) * 2002-11-06 2005-08-10 Pharmacia & Upjohn Company LLC Verfahren zur herstellung von 7-carboxy substituierten steroiden
TWI280133B (en) * 2002-11-07 2007-05-01 Upjohn Co Process for preparing C-7 substituted steroids
CL2004000574A1 (es) * 2003-03-21 2005-02-11 Pharmacia Corp Sa Organizada B Proceso para preparar un compuesto 17-espirolactona o la sal de lactona abierta por carbonilacion del correspondiente 17-alquenil o alquinil derivado, los intermediarios que se usan y su proceso de obtencion.
US20040265948A1 (en) * 2003-06-27 2004-12-30 White Michael Jon Microbial method for hydrolysis and oxidation of androst-5-ene and pregn-5-ene steroid esters
WO2005016912A1 (en) * 2003-08-19 2005-02-24 Pfizer Inc. An efficient microbial preparation of capravirine metabolites m4 and m5
TW200602352A (en) * 2004-03-22 2006-01-16 Upjohn Co Improved process for the preparation of 9,11 epoxy steroids
CN1321128C (zh) * 2005-07-15 2007-06-13 浙江医药股份有限公司新昌制药厂 孕甾－4－烯－7，21－二甲酸，9，11－环氧－17－羟基－3－氧代，γ－内酯，甲酯，(7α,11α,17α)－的制备方法
WO2007025780A2 (en) * 2005-09-02 2007-03-08 Recordati Ireland Limited Aldosterone receptor antagonists
WO2008045323A2 (en) * 2006-10-06 2008-04-17 Health Research Inc. Method for determination of dht levels in tissue samples
US20080242856A1 (en) * 2007-04-02 2008-10-02 Funci Biotechnology Co., Ltd. Extracts of taiwanofungus camphoratus with a capacity for inhibiting the activity of matrix metalloproteinases and method for preparing the same
HU227304B1 (en) * 2007-07-04 2011-02-28 Richter Gedeon Nyrt Process for producing 9alpha-hydroxy-steroids
US8222237B2 (en) * 2008-11-25 2012-07-17 Evestra, Inc. Progestational 3-(6,6-ethylene-17B-hydroxy-3-oxo-17A-pregna-4-ene-17A-yl)propionic acid G-lactones
ES2566934T3 (es) 2010-05-10 2016-04-18 INSERM (Institut National de la Santé et de la Recherche Médicale) Métodos y composiciones para el tratamiento de la acumulación de líquido en y/o bajo la retina
US9241944B2 (en) 2010-06-16 2016-01-26 Institut National De La Santé Et De La Recherche Médicale (Inserm) Methods and compositions for stimulating reepithelialisation during wound healing
CN104262450A (zh) * 2014-09-19 2015-01-07 江苏嘉逸医药有限公司 依普利酮的制备及精制方法
ES2699923T3 (es) 2014-10-17 2019-02-13 Ind Chimica Srl Proceso para la preparación de 7alfa-(metoxicarbonil)-3-oxo-17alfa-pregn-4,9(11)-dien-21,17-carbolactona, un intermedio útil para la síntesis de moléculas con actividad farmacológica
WO2016063269A1 (en) 2014-10-20 2016-04-28 Prendergast Patrick T Use of antagonists to the nuclear steroid receptor alone or in combination as direct antiviral agents to inhibit alphavirus, togaviridae, arenaviridae, filoviridae, bunyaviridae, flaviviridae and rhabdoviridae
WO2017055248A1 (en) 2015-09-28 2017-04-06 INSERM (Institut National de la Santé et de la Recherche Médicale) Methods and pharmaceutical compositions for the treatment of heart failure
WO2017064121A1 (en) 2015-10-13 2017-04-20 INSERM (Institut National de la Santé et de la Recherche Médicale) Methods and pharmaceutical compositions for the treatment of choroidal neovascularisation
CN105753930A (zh) * 2016-03-30 2016-07-13 北京万全德众医药生物技术有限公司 依普利酮的一种合成方法
EP3490606B8 (de) 2016-07-26 2024-04-10 INSERM (Institut National de la Santé et de la Recherche Médicale) Mineralocorticoid-receptor-antagonist zur behandlung von osteoarthritis
CN106501388A (zh) * 2016-09-22 2017-03-15 北京万全德众医药生物技术有限公司 一种用气相色谱法分离测定依普利酮中三氯乙酰胺的方法
CN108085359B (zh) * 2016-11-22 2020-07-24 保定九孚生化有限公司 一种11α-羟基-4-烯-3,17-雄甾二酮的生产方法
CN110698529A (zh) * 2019-11-19 2020-01-17 湖南新合新生物医药有限公司 一种依普利酮中间体△9,11烯酯的制备方法
WO2023031277A1 (en) 2021-08-31 2023-03-09 INSERM (Institut National de la Santé et de la Recherche Médicale) Methods for the treatment of ocular rosacea
CN114235976B (zh) * 2021-11-09 2023-11-03 暨南大学 一种含氮杂环有机化合物中间产物的合成和分析方法
US12060148B2 (en) 2022-08-16 2024-08-13 Honeywell International Inc. Ground resonance detection and warning system and method

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2602769A (en) 1952-02-23 1952-07-08 Upjohn Co Oxygenation of steroids by mucorales fungi
US2691030A (en) * 1952-03-28 1954-10-05 Upjohn Co 11 alpha-hydroxy-6-dehydroprogesterone and esters thereof
US3053856A (en) * 1958-10-29 1962-09-11 Shell Oil Co Epoxidation of ethylenic compounds with peroxycarboximidic acids
US3095412A (en) * 1961-12-19 1963-06-25 Searle & Co 9alpha, 11alpha-epoxy and 11beta-chloro-9alpha-hydroxy 17alpha-(2-carboxyethyl)-17beta-hydroxyandrost-4-en-3-one gamma-lactones and delta1 and delta6 analogs
US3120515A (en) * 1962-05-31 1964-02-04 Sterling Drug Inc 5-cyano steroids, their preparation, and derivatives thereof
US3200113A (en) * 1963-01-09 1965-08-10 Sterling Drug Inc 7-cyano steroids and derivatives thereof
US3300489A (en) * 1964-07-24 1967-01-24 Smith Kline French Lab Steroidal c-17 spirolactones and processes and intermediates used in the preparation thereof
US3413288A (en) * 1965-07-07 1968-11-26 Parke Davis & Co Process for the production of steroidal c-17 spirolactones
US3741990A (en) * 1969-07-28 1973-06-26 Upjohn Co Organic compounds and processes
US3759791A (en) * 1970-12-10 1973-09-18 Searle & Co Selective microbiological preparation of androst-4-ene-3,17-dione
FR2216273B1 (de) * 1973-02-06 1977-07-22 Roussel Uclaf
DE2404946C3 (de) * 1973-02-06 1978-03-02 Roussel-Uclaf S.A., Paris Verfahren zur Herstellung von 7alpha-Acylthio-Steroidspirolactonen
DE2443746A1 (de) * 1973-09-14 1975-03-20 Searle & Co 4',5-dihydro-7alpha-alkoxycarbonylspiro eckige klammer auf androst-4-en17,2'(3'h)-furan eckige klammer zu -3-one und entsprechende delta hoch 1,4-verbindungen
DE2349022A1 (de) * 1973-09-26 1975-04-10 Schering Ag Neue d-homo-steroide
FR2260569B1 (de) 1974-02-08 1978-06-16 Ugine Kuhlmann
US3972871A (en) * 1975-09-22 1976-08-03 G. D. Searle & Co. 6β,17-Dihydroxy-7α-(lower alkoxy)carbonyl-3-oxo-17α-pregn-4-ene-21-carboxylic acid γ-lactones and congeners
IE44711B1 (en) * 1976-03-05 1982-03-10 Schering Ag 17 -hydroxypropyl-4-3-keto-steroids and esters thereof, and process for their manufacture
US4069219A (en) 1976-12-27 1978-01-17 G. D. Searle & Co. 7ξ-(Alkoxycarbonyl)-6ξ-alkyl/halo-17-hydroxy-3-oxo-17α-pregn-4-ene-21-carboxylic acid γ-lactones and corresponding 21-carboxylic acids, their salts, and esters
YU41412B (en) * 1978-08-15 1987-04-30 Gist Brocades Nv Process for obtaining 17 beta-hydroxy -3-dxo-17 alpha-pregn-4-en-21-carboxylic acid
US4270994A (en) 1980-02-20 1981-06-02 G. D. Searle & Co. Electrochemical dehydrogenation of steroidal Δ3,5 enol ethers under basic conditions to provide steroidal Δ4,6 dienones
JPS56120697A (en) * 1980-02-28 1981-09-22 Mitsubishi Chem Ind Ltd Preparation of 4,6-diene-3-oxosteroid
JPS58179498A (ja) * 1982-04-13 1983-10-20 Dainippon Ink & Chem Inc 微生物による１１α−ヒドロキシル化アンドロスタン系化合物の製造方法
FI77669C (fi) * 1983-04-13 1989-04-10 Ciba Geigy Ag 20-spiroxaner och analoger, som innehaoller en oeppen ring e, foerfarande foer deras framstaellning samt dessa innehaollande farmaceutiska preparat.
EP0123734A1 (de) * 1983-04-29 1984-11-07 Gist-Brocades N.V. 17-(Isocyano-sulfonylmethylen)-Steroide, 17-(Formamido-sulfonylmethylen)-Steroide und ihre Herstellung
US4670551A (en) * 1984-06-21 1987-06-02 Ciba-Geigy Corporation Epoxy steroids
ES2052550T3 (es) 1986-10-10 1994-07-16 Roussel Uclaf 9-alfa-hidroxiesteroides, procedimiento para su preparacion y procedimiento para la preparacion de los correspondientes derivados 9(11)-deshidro.
US5502222A (en) * 1994-06-01 1996-03-26 Schering Corporation Process for preparing delta 9,11 and 21-chloro corticosteroids
US5565558A (en) * 1994-12-30 1996-10-15 Mccully; Kilmer S. Thioretinaco ozonide and enhanced biological activity of thioretinaco ozonide in combination with interferon
US5981744A (en) 1995-12-11 1999-11-09 G. D. Searle And Co. Processes for preparation of 9,11-epoxy steroids and intermediates useful therein

Also Published As

Publication number Publication date
US20020042507A1 (en) 2002-04-11
US20070060746A1 (en) 2007-03-15
JP2002504077A (ja) 2002-02-05
EP0973791A2 (de) 2000-01-26
US6586591B2 (en) 2003-07-01
US20050239761A1 (en) 2005-10-27
PT973791E (pt) 2007-09-26
EA009176B1 (ru) 2007-12-28
EP0973791B1 (de) 2007-06-20
US7129345B2 (en) 2006-10-31
US6258946B1 (en) 2001-07-10
US6335441B1 (en) 2002-01-01
US20030100541A1 (en) 2003-05-29
US6180780B1 (en) 2001-01-30
US20020019522A1 (en) 2002-02-14
US6953851B2 (en) 2005-10-11
DE69637140T2 (de) 2008-04-10
JP4146897B2 (ja) 2008-09-10
US6331622B1 (en) 2001-12-18
US20020016455A1 (en) 2002-02-07
CN100384866C (zh) 2008-04-30
IL175299A0 (en) 2006-09-05
EA199800449A1 (ru) 1999-02-25
JP2008100996A (ja) 2008-05-01
IL124631A0 (en) 1999-01-26
ES2287943T3 (es) 2007-12-16
US6630587B2 (en) 2003-10-07
US20040191874A1 (en) 2004-09-30
WO1997021720A3 (en) 1997-10-30
US5981744A (en) 1999-11-09
DK0973791T3 (da) 2007-09-17
WO1997021720A2 (en) 1997-06-19
DE69637140D1 (de) 2007-08-02
IL124631A (en) 2004-03-28
CN1209136A (zh) 1999-02-24
US7038040B2 (en) 2006-05-02
US20040067917A1 (en) 2004-04-08

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