ES398732A1 - Un procedimiento para la preparacion de un 16,17-cetal de beta -3,20-diceto-6,6-difluor 16 alfa, 17 alfa, 21-trihidro-xipregnano. - Google Patents

Un procedimiento para la preparacion de un 16,17-cetal de beta -3,20-diceto-6,6-difluor 16 alfa, 17 alfa, 21-trihidro-xipregnano.

Info

Publication number
ES398732A1
ES398732A1 ES398732A ES398732A ES398732A1 ES 398732 A1 ES398732 A1 ES 398732A1 ES 398732 A ES398732 A ES 398732A ES 398732 A ES398732 A ES 398732A ES 398732 A1 ES398732 A1 ES 398732A1
Authority
ES
Spain
Prior art keywords
contacting
product
temperature
solvent
solution
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
ES398732A
Other languages
English (en)
Spanish (es)
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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
Priority claimed from US00105666A external-priority patent/US3822253A/en
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of ES398732A1 publication Critical patent/ES398732A1/es
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
    • A61K31/58—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids containing heterocyclic rings, e.g. danazol, stanozolol, pancuronium or digitogenin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J1/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, not substituted in position 17 beta by a carbon atom, e.g. estrane, androstane

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Steroid Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
ES398732A 1971-01-11 1972-01-10 Un procedimiento para la preparacion de un 16,17-cetal de beta -3,20-diceto-6,6-difluor 16 alfa, 17 alfa, 21-trihidro-xipregnano. Expired ES398732A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00105666A US3822253A (en) 1970-04-22 1971-01-11 Process for the preparation of delta4-3,20-diketo-6,6-difluoro-11beta,16alpha,17alpha,21-tetrahydroxypregnene 16,17-ketals

Publications (1)

Publication Number Publication Date
ES398732A1 true ES398732A1 (es) 1975-06-01

Family

ID=22307115

Family Applications (1)

Application Number Title Priority Date Filing Date
ES398732A Expired ES398732A1 (es) 1971-01-11 1972-01-10 Un procedimiento para la preparacion de un 16,17-cetal de beta -3,20-diceto-6,6-difluor 16 alfa, 17 alfa, 21-trihidro-xipregnano.

Country Status (10)

Country Link
AT (1) AT323341B (enExample)
AU (1) AU3773772A (enExample)
BE (1) BE777859A (enExample)
DE (1) DE2200597A1 (enExample)
ES (1) ES398732A1 (enExample)
FR (1) FR2121713B1 (enExample)
GB (1) GB1352079A (enExample)
IL (1) IL38359A0 (enExample)
NL (1) NL7200329A (enExample)
ZA (1) ZA718557B (enExample)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3320291A (en) * 1962-10-23 1967-05-16 Du Pont 5-fluoro-6-nitrimino-and 6-keto steroids and their preparation
US3641006A (en) * 1970-06-01 1972-02-08 Du Pont Process for the preparation of steroid alpha-fluoronitrimines

Also Published As

Publication number Publication date
AU3773772A (en) 1973-07-12
FR2121713A1 (enExample) 1972-08-25
FR2121713B1 (enExample) 1975-10-31
IL38359A0 (en) 1972-02-29
BE777859A (fr) 1972-07-10
NL7200329A (enExample) 1972-07-13
DE2200597A1 (de) 1972-07-27
GB1352079A (en) 1974-05-15
ZA718557B (en) 1973-08-29
AT323341B (de) 1975-07-10

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