WO2008128783A3 - Photochemical process for the preparation of a previtamin d - Google Patents

Photochemical process for the preparation of a previtamin d Download PDF

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Publication number
WO2008128783A3
WO2008128783A3 PCT/EP2008/003321 EP2008003321W WO2008128783A3 WO 2008128783 A3 WO2008128783 A3 WO 2008128783A3 EP 2008003321 W EP2008003321 W EP 2008003321W WO 2008128783 A3 WO2008128783 A3 WO 2008128783A3
Authority
WO
WIPO (PCT)
Prior art keywords
previtamin
preparation
photochemical process
derivative
dehydrosterol
Prior art date
Application number
PCT/EP2008/003321
Other languages
French (fr)
Other versions
WO2008128783A2 (en
Inventor
Rafael Reintjens
Andreas Puhl
Original Assignee
Dsm Ip Assets Bv
Rafael Reintjens
Andreas Puhl
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 Dsm Ip Assets Bv, Rafael Reintjens, Andreas Puhl filed Critical Dsm Ip Assets Bv
Publication of WO2008128783A2 publication Critical patent/WO2008128783A2/en
Publication of WO2008128783A3 publication Critical patent/WO2008128783A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C401/00—Irradiation products of cholesterol or its derivatives; Vitamin D derivatives, 9,10-seco cyclopenta[a]phenanthrene or analogues obtained by chemical preparation without irradiation

Abstract

The invention is directed to a photochemical process for the preparation of a previtamin D or a derivative thereof from a 7-dehydrosterol or a corresponding derivative thereof which process comprises irradiating the 7-dehydrosterol or the derivative thereof with UV LED(s).
PCT/EP2008/003321 2007-04-24 2008-04-24 Photochemical process for the preparation of a previtamin d WO2008128783A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07008307 2007-04-24
EP07008307.6 2007-04-24

Publications (2)

Publication Number Publication Date
WO2008128783A2 WO2008128783A2 (en) 2008-10-30
WO2008128783A3 true WO2008128783A3 (en) 2008-12-24

Family

ID=39876008

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/003321 WO2008128783A2 (en) 2007-04-24 2008-04-24 Photochemical process for the preparation of a previtamin d

Country Status (2)

Country Link
CN (1) CN101668739A (en)
WO (1) WO2008128783A2 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8263580B2 (en) 1998-09-11 2012-09-11 Stiefel Research Australia Pty Ltd Vitamin formulation
CA2611147C (en) 2005-06-01 2013-04-09 Stiefel Research Australia Pty Ltd. Topical emulsion formulation
CN102850248A (en) * 2012-09-29 2013-01-02 浙江花园生物高科股份有限公司 Technology for preparing vitamin D3
CN104327147B (en) * 2014-06-04 2016-11-23 正源堂（天津滨海新区）生物科技有限公司 A kind of ergosterol compounds and preparation method and application
RU2017112748A (en) 2014-11-17 2018-12-19 Арно Терапьютикс, Инк. ONAPRISTON COMPOSITIONS OF LONG-TERM ACTIONS AND METHODS
US10336694B2 (en) * 2014-12-18 2019-07-02 Nucelis Llc Methods for improved production of vitamins D2 and D3
WO2017053793A1 (en) 2015-09-25 2017-03-30 Arno Therapeutics, Inc. Methods of making onapristone intermediates
US10548905B2 (en) 2015-12-15 2020-02-04 Context Biopharma Inc. Amorphous onapristone compositions and methods of making the same
WO2018102369A1 (en) 2016-11-30 2018-06-07 Arno Therapeutics, Inc. Methods for onapristone synthesis dehydration and deprotection
US20220234972A1 (en) * 2019-05-10 2022-07-28 Fermenta Biotech Limited Irradiation process of pro vitamin d
CN111960980A (en) * 2019-05-20 2020-11-20 重庆桑禾动物药业有限公司 Method for synthesizing pre-vitamin D3 by using LED ultraviolet lamp
CN112110841B (en) * 2019-06-21 2022-12-06 重庆桑禾动物药业有限公司 Method for synthesizing vitamin D3 by segmenting and determining spectral bands
CN110790807B (en) * 2019-11-04 2021-08-06 广西师范大学 Method for preparing 9 beta, 10 alpha-dehydroprogesterone diethyl ketal by using LED light source
CN110713449A (en) * 2019-11-12 2020-01-21 广西师范大学 Efficient green production process of vitamin D3
CN110818760B (en) * 2019-11-12 2021-06-25 广西师范大学 Production process capable of industrially synthesizing dydrogesterone
CN110724081B (en) * 2019-11-12 2023-08-15 广西师范大学 Efficient production process of vitamin D2
CN111116442A (en) * 2020-01-03 2020-05-08 宁波东隆光电科技有限公司 Preparation method of vitamin D
CN111171101B (en) * 2020-01-03 2023-04-11 宁波东隆智能科技有限公司 Preparation method of dydrogesterone intermediate

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0118903A1 (en) * 1983-03-10 1984-09-19 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. Photochemical process for the preparation of previtamin D2 and D3 starting from ergosterol or 7-dehydro cholesterol
EP0967202A1 (en) * 1998-06-23 1999-12-29 F. Hoffmann-La Roche Ag Photolysis of 7-dehydrocholesterol
US20050042743A1 (en) * 2002-07-11 2005-02-24 Chihiro Kawai Porous semiconductor and process for producing the same
RU2266761C2 (en) * 2003-10-24 2005-12-27 Марков Валерий Николаевич All-purpose compact light-emitting diode-based radiator usable in preventing and treating diseases
WO2006126482A1 (en) * 2005-05-26 2006-11-30 Matsushita Electric Industrial Co., Ltd. Refrigerator
DE102006022004A1 (en) * 2006-05-10 2007-11-15 Heraeus Noblelight Gmbh Fluid treatment plant, in particular water disinfection plant

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0118903A1 (en) * 1983-03-10 1984-09-19 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. Photochemical process for the preparation of previtamin D2 and D3 starting from ergosterol or 7-dehydro cholesterol
EP0967202A1 (en) * 1998-06-23 1999-12-29 F. Hoffmann-La Roche Ag Photolysis of 7-dehydrocholesterol
US20050042743A1 (en) * 2002-07-11 2005-02-24 Chihiro Kawai Porous semiconductor and process for producing the same
RU2266761C2 (en) * 2003-10-24 2005-12-27 Марков Валерий Николаевич All-purpose compact light-emitting diode-based radiator usable in preventing and treating diseases
WO2006126482A1 (en) * 2005-05-26 2006-11-30 Matsushita Electric Industrial Co., Ltd. Refrigerator
EP1887298A1 (en) * 2005-05-26 2008-02-13 Matsushita Electric Industrial Co., Ltd. Refrigerator
DE102006022004A1 (en) * 2006-05-10 2007-11-15 Heraeus Noblelight Gmbh Fluid treatment plant, in particular water disinfection plant

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
BRAUN M ET AL: "Improved photosynthesis of previtamin D by wavelengths of 280-300 nm", JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY, A: CHEMISTRY, CHELSEVIER SEQUOIA, LAUSANNE, vol. 61, no. 1, 1 January 1991 (1991-01-01), pages 15 - 26, XP002499729 *
DATABASE EPODOC EUROPEAN PATENT OFFICE, THE HAGUE, NL; 27 December 2005 (2005-12-27), MARKOV ET AL: "All-purpose compact Light emitting diode-based radiator usable in preventing and treating diseases", XP002502257 *
TERENETSKAYA I P ET AL: "Analysis of the two-stage irradiation of provitamin D taking into account the irreversible photoreactions of previtamin", PHARMACEUTICAL CHEMISTRY JOURNAL, USCONSULTANTS BUREAU, NEW YORK, NY, vol. 27, no. 11, 1 January 1993 (1993-01-01), pages 797 - 803, XP002499730 *

Also Published As

Publication number Publication date
WO2008128783A2 (en) 2008-10-30
CN101668739A (en) 2010-03-10

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