ZA718557B - Process for the preparation of delta4-3,20-diketo-6,6-difluoro-11beta,16alpha,17alpha,21-tetrahydroxypregnene 16,17-ketals - Google Patents

Process for the preparation of delta4-3,20-diketo-6,6-difluoro-11beta,16alpha,17alpha,21-tetrahydroxypregnene 16,17-ketals

Info

Publication number
ZA718557B
ZA718557B ZA718557A ZA718557A ZA718557B ZA 718557 B ZA718557 B ZA 718557B ZA 718557 A ZA718557 A ZA 718557A ZA 718557 A ZA718557 A ZA 718557A ZA 718557 B ZA718557 B ZA 718557B
Authority
ZA
South Africa
Prior art keywords
tetrahydroxypregnene
delta4
16alpha
11beta
17alpha
Prior art date
Application number
ZA718557A
Other languages
English (en)
Inventor
W Ripka
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Publication of ZA718557B publication Critical patent/ZA718557B/xx

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)
ZA718557A 1971-01-11 1971-12-22 Process for the preparation of delta4-3,20-diketo-6,6-difluoro-11beta,16alpha,17alpha,21-tetrahydroxypregnene 16,17-ketals ZA718557B (en)

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
ZA718557B true ZA718557B (en) 1973-08-29

Family

ID=22307115

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA718557A ZA718557B (en) 1971-01-11 1971-12-22 Process for the preparation of delta4-3,20-diketo-6,6-difluoro-11beta,16alpha,17alpha,21-tetrahydroxypregnene 16,17-ketals

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
ES398732A1 (es) 1975-06-01
NL7200329A (enExample) 1972-07-13
DE2200597A1 (de) 1972-07-27
GB1352079A (en) 1974-05-15
AT323341B (de) 1975-07-10

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