CA2275558A1 - Photochemical process - Google Patents

Photochemical process Download PDF

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Publication number
CA2275558A1
CA2275558A1 CA002275558A CA2275558A CA2275558A1 CA 2275558 A1 CA2275558 A1 CA 2275558A1 CA 002275558 A CA002275558 A CA 002275558A CA 2275558 A CA2275558 A CA 2275558A CA 2275558 A1 CA2275558 A1 CA 2275558A1
Authority
CA
Canada
Prior art keywords
previtamin
excimer
radiation
emitters
reactor
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.)
Abandoned
Application number
CA002275558A
Other languages
English (en)
French (fr)
Inventor
Michael Jansen
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Publication of CA2275558A1 publication Critical patent/CA2275558A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/59Compounds containing 9, 10- seco- cyclopenta[a]hydrophenanthrene ring systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • B01J19/12Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
    • B01J19/121Coherent waves, e.g. laser beams

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Electromagnetism (AREA)
  • Organic Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Epidemiology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Medicinal Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Steroid Compounds (AREA)
CA002275558A 1998-06-23 1999-06-18 Photochemical process Abandoned CA2275558A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP98111492.9 1998-06-23
EP98111492 1998-06-23

Publications (1)

Publication Number Publication Date
CA2275558A1 true CA2275558A1 (en) 1999-12-23

Family

ID=8232158

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002275558A Abandoned CA2275558A1 (en) 1998-06-23 1999-06-18 Photochemical process

Country Status (11)

Country Link
US (1) US6180805B1 (zh:)
EP (1) EP0967202B1 (zh:)
JP (1) JP2000026405A (zh:)
KR (1) KR100682807B1 (zh:)
CN (1) CN1227224C (zh:)
BR (1) BR9903271A (zh:)
CA (1) CA2275558A1 (zh:)
DE (1) DE59905410D1 (zh:)
DK (1) DK0967202T3 (zh:)
ES (1) ES2197547T3 (zh:)
IN (1) IN188477B (zh:)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4291299A (en) * 1998-07-03 2000-01-24 Chugai Seiyaku Kabushiki Kaisha Ultraviolet irradiation apparatus for photochemical reaction and method for preparing vitamin d derivative using the same
FR2823206B1 (fr) * 2001-04-05 2004-02-20 Atofina Procede photochimique semi-continu et dispositif pour sa mise en oeuvre
CN101663269A (zh) * 2007-04-24 2010-03-03 帝斯曼知识产权资产管理有限公司 用于制造前维生素d的光化学方法
WO2008128783A2 (en) * 2007-04-24 2008-10-30 Dsm Ip Assets B.V. Photochemical process for the preparation of a previtamin d
US20140221692A1 (en) 2013-02-04 2014-08-07 Chevron Phillips Chemical Company Lp Flow Reactor Vessels and Reactor Systems
WO2015108058A1 (ja) * 2014-01-17 2015-07-23 協和発酵バイオ株式会社 7デヒドロコレステロール及びビタミンd3の製造法
EP3205728B1 (en) * 2014-10-08 2019-11-27 Kyowa Hakko Bio Co., Ltd. Process for producing 7-dehydrocholesterol and vitamin d3
WO2020230159A1 (en) 2019-05-10 2020-11-19 Fermenta Biotech Limited Irradiation process of pro vitamin d

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE19623T1 (de) * 1981-07-17 1986-05-15 Duphar Int Res Verfahren zur herstellung von 1-alpha-hydroxy vitamin d oder 1-alpha hydroxy previtamin d derivaten und previtamin d oder tachysteroladdukten mit geeigneten dienophilen.
US4388242A (en) * 1982-03-15 1983-06-14 Canadian Patents & Development Limited Method of production of vitamin-D
DE3308592C2 (de) * 1983-03-10 1986-08-07 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen Photochemisches Verfahren zur Herstellung von Prävitamin D↓2↓ und D↓3↓ aus Ergosterin bzw.7-Dehydrocholesterin
DD279668A1 (de) * 1984-10-15 1990-06-13 Univ Schiller Jena Verfahren zur sensibilisierten photoisomerisierung von 5.7-dien-steroiden
US4686023A (en) * 1985-11-26 1987-08-11 Solarchem Research, Division Of Brolor Investments, Ltd. Sensitized photochemical preparation of vitamin D
US5543016A (en) * 1991-07-12 1996-08-06 Inrad Photoconversion of steroids in microreactors
DE4136949A1 (de) * 1991-11-11 1993-05-13 Roswitha Niedermeier Verfahren und vorrichtung zur photooxidativen reinigung von organisch belastetem wasser
EP0697374B1 (de) * 1994-08-15 2000-03-22 Sulzer Chemtech AG Vorrichtung zum Behandeln von Fluiden mit UV-Strahlung

Also Published As

Publication number Publication date
JP2000026405A (ja) 2000-01-25
IN188477B (zh:) 2002-09-28
KR20000006343A (ko) 2000-01-25
US6180805B1 (en) 2001-01-30
DK0967202T3 (da) 2003-08-25
DE59905410D1 (de) 2003-06-12
EP0967202B1 (de) 2003-05-07
CN1227224C (zh) 2005-11-16
KR100682807B1 (ko) 2007-02-15
CN1243123A (zh) 2000-02-02
BR9903271A (pt) 2000-05-16
EP0967202A1 (de) 1999-12-29
ES2197547T3 (es) 2004-01-01

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Legal Events

Date Code Title Description
FZDE Discontinued