GB1397267A - Preparation of a betametahasone precursor - Google Patents

Preparation of a betametahasone precursor

Info

Publication number
GB1397267A
GB1397267A GB2526472A GB2526472A GB1397267A GB 1397267 A GB1397267 A GB 1397267A GB 2526472 A GB2526472 A GB 2526472A GB 2526472 A GB2526472 A GB 2526472A GB 1397267 A GB1397267 A GB 1397267A
Authority
GB
United Kingdom
Prior art keywords
bisethylenedioxy
pregn
epoxy
methyl
dione
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
GB2526472A
Other languages
English (en)
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.)
Plurichemie Anstalt
Original Assignee
Plurichemie Anstalt
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 Plurichemie Anstalt filed Critical Plurichemie Anstalt
Publication of GB1397267A publication Critical patent/GB1397267A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J5/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom, i.e. only one oxygen bound to position 21 by a single bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Steroid Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
GB2526472A 1971-06-05 1972-05-30 Preparation of a betametahasone precursor Expired GB1397267A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PT5588671 1971-06-05

Publications (1)

Publication Number Publication Date
GB1397267A true GB1397267A (en) 1975-06-11

Family

ID=20081744

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2526472A Expired GB1397267A (en) 1971-06-05 1972-05-30 Preparation of a betametahasone precursor

Country Status (11)

Country Link
US (1) US3761498A (enExample)
JP (1) JPS535665B1 (enExample)
AT (1) AT327411B (enExample)
AU (1) AU467137B2 (enExample)
CA (1) CA987306A (enExample)
CH (1) CH579590A5 (enExample)
FR (1) FR2141191A5 (enExample)
GB (1) GB1397267A (enExample)
HK (1) HK64579A (enExample)
NL (1) NL7207616A (enExample)
ZA (1) ZA723782B (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064240A (en) * 1976-11-17 1977-12-20 Syntex (U.S.A.) Inc. 21-Cyclic acetals of steroidal 21-aldehydes and methods of preparation
FR2720747B1 (fr) * 1994-06-02 1996-07-12 Roussel Uclaf Nouveau procédé de préparation d'un stéroïde 16béta-méthyl et nouveaux intermédiaires.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3104246A (en) * 1961-08-18 1963-09-17 Roussel Uclaf Process of preparation of beta-methasone

Also Published As

Publication number Publication date
CA987306A (en) 1976-04-13
JPS535665B1 (enExample) 1978-03-01
DE2226067B2 (de) 1976-02-05
AU4294972A (en) 1973-12-06
US3761498A (en) 1973-09-25
HK64579A (en) 1979-09-21
NL7207616A (enExample) 1972-12-07
ZA723782B (en) 1973-03-28
DE2226067A1 (de) 1973-01-04
AU467137B2 (en) 1975-11-20
AT327411B (de) 1976-01-26
ATA471972A (de) 1975-04-15
CH579590A5 (enExample) 1976-09-15
FR2141191A5 (enExample) 1973-01-19

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Legal Events

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