GB1529326A - Boron esters and their use in a process for synthesis of coenzymes q - Google Patents

Boron esters and their use in a process for synthesis of coenzymes q

Info

Publication number
GB1529326A
GB1529326A GB47905/75A GB4790575A GB1529326A GB 1529326 A GB1529326 A GB 1529326A GB 47905/75 A GB47905/75 A GB 47905/75A GB 4790575 A GB4790575 A GB 4790575A GB 1529326 A GB1529326 A GB 1529326A
Authority
GB
United Kingdom
Prior art keywords
benzohydroquinone
boron
prepared
ester
benzoquinones
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.)
Expired
Application number
GB47905/75A
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.)
Eisai Co Ltd
Original Assignee
Eisai Co Ltd
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 Eisai Co Ltd filed Critical Eisai Co Ltd
Priority claimed from US05/725,427 external-priority patent/US4057568A/en
Publication of GB1529326A publication Critical patent/GB1529326A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F5/00Compounds containing elements of Groups 3 or 13 of the Periodic Table
    • C07F5/02Boron compounds
    • C07F5/022Boron compounds without C-boron linkages
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C50/00Quinones
    • C07C50/26Quinones containing groups having oxygen atoms singly bound to carbon atoms
    • C07C50/28Quinones containing groups having oxygen atoms singly bound to carbon atoms with monocyclic quinoid structure
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F5/00Compounds containing elements of Groups 3 or 13 of the Periodic Table
    • C07F5/02Boron compounds
    • C07F5/05Cyclic compounds having at least one ring containing boron but no carbon in the ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

1529326 Boron esters and benzoquinones prepared therefrom EISAI CO Ltd 21 Nov 1975 [22 Nov 1974] 47905/75 Headings C2B and C2C A boron ester of a 1,4-benzohydroquinone of formula where R is a group in which S is O or 1-11 and A and B are each H or together form a direct bond, is prepared by reacting a boron ester of 2,3-dimethoxy-5- methyl-1,4-benzohydroquinone with a prenol or isoprenol or reactive derivative thereof. The ester reactant may be obtained by reaction of the 2,3,5-substituted hydroquinone with H 3 BO 3 , HBO 2 , B 2 O 3 or borax and may also be of the type the free OH groups of which may be further esterified with the hydroquinone compound. Pharmaceutically active benzoquinones of formula are prepared by reacting a boron ester of a 1,4- benzohydroquinone II with a mild oxidant such as silver oxide, lead oxide or ferric chloride.
GB47905/75A 1974-11-22 1975-11-21 Boron esters and their use in a process for synthesis of coenzymes q Expired GB1529326A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP49133573A JPS5826327B2 (en) 1974-11-22 1974-11-22 Hokosokyuuruino Goseihou
US05/725,427 US4057568A (en) 1974-11-22 1976-09-22 Process for synthesis of boric acid ester

Publications (1)

Publication Number Publication Date
GB1529326A true GB1529326A (en) 1978-10-18

Family

ID=26467897

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47905/75A Expired GB1529326A (en) 1974-11-22 1975-11-21 Boron esters and their use in a process for synthesis of coenzymes q

Country Status (7)

Country Link
JP (1) JPS5826327B2 (en)
CH (1) CH613682A5 (en)
DE (1) DE2552365C2 (en)
FR (1) FR2291980A1 (en)
GB (1) GB1529326A (en)
NL (1) NL184778C (en)
SE (1) SE431325B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6058209B2 (en) 1978-12-01 1985-12-19 エーザイ株式会社 β,γ-dihydropolyprenyl alcohol and antihypertensive agents consisting of it
JPH0221944Y2 (en) * 1986-03-26 1990-06-13
JPH0541417U (en) * 1991-03-20 1993-06-08 ハクバ写真産業株式会社 Handle of the trunk case

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH376898A (en) * 1958-08-07 1964-04-30 Hoffmann La Roche Process for the preparation of 2,3-dimethoxy-5-methyl-benzohydroquinones- (1,4) or benzoquinones- (1,4) substituted in the 6-position

Also Published As

Publication number Publication date
DE2552365A1 (en) 1976-05-26
SE431325B (en) 1984-01-30
FR2291980B1 (en) 1978-05-12
CH613682A5 (en) 1979-10-15
DE2552365C2 (en) 1985-10-24
JPS5826327B2 (en) 1983-06-02
SE7513127L (en) 1976-05-24
FR2291980A1 (en) 1976-06-18
JPS5163139A (en) 1976-06-01
NL184778C (en) 1989-11-01
NL7513705A (en) 1976-05-25

Similar Documents

Publication Publication Date Title
GB1512541A (en) Aralkyl carboxylic acid compounds
ES447803A2 (en) Plasminogen activator pharmaceutical compositions
GB1529326A (en) Boron esters and their use in a process for synthesis of coenzymes q
ES8305299A1 (en) Process for synthesizing carbonic acid esters derived from unsaturated alcohols and polyhydric alcohols
GB1489309A (en) Hardenable mixtures
ES8306765A1 (en) Novel anthracycline derivative, process for production thereof, and pharmaceutical composition comprising said compound.
ES414508A1 (en) Sitosterol esters
DE3361013D1 (en) A novel ester of the 1-methyl-5-p-toluoylpyrrolyl-2-acetic acid having antiinflammatory, mucolytic and antitussive properties, process for its preparation and pharmaceutical compositions containing them
GB1462387A (en) Aminoglycosides
GB1362112A (en) Thermoplastic composition
ES451930A1 (en) Process for synthesis of coenzyme Q compounds
JPS5422331A (en) Preparation of quinones
ES443115A1 (en) Novel ester of 19-nor-testosterone
EP0147892A3 (en) Process for preparing and therapeutical applications of the 2,4,6-triiodophenol
ES8506351A1 (en) An anthracycline compound, a process for the production thereof, a pharmaceutical composition containing the same and its use as a medicament.
JPS5699480A (en) Preparation of pyridopyrimidine derivative
DE3572171D1 (en) Theophylline-7-acetic acid ester of d,l-trans-sobrerol having mucosecretolytic-fluidizing and antibronchospastic activity, a process for its preparation and pharmaceutical compositions thereof
GB1292846A (en) A process for the synthesis of leupeptins and their analogues
GB1336787A (en) Production of mixed mono- and bis-carbonic acid esters
DE3564568D1 (en) Pentaerythritol derivatives and a process for preparing the same
GB1285110A (en) Polyhalomethyl ethyl ethers, their production, and their use as anaesthetics
JPS51138650A (en) Process for preparing optically active trans-cyclopentene-3,5,-diolmon oester
JPS5257127A (en) Process for hexyne-3-ol-1
GB1251977A (en)
ES8306705A1 (en) (Arylmethyl)aryl-amino-cyclohexanols, -cyclohexanes, -cyclohexenes and intermediates thereof, a process for preparing the same and their use as medicaments.

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee