HK7197A - Process for the preparation of intermediates for 11-beta, 16-alpha, 17-alpha, 21-tetra-hydroxypregna-3, 20-dione 16-alpha, 17-alpha-acetals and 21-esters thereof - Google Patents

Process for the preparation of intermediates for 11-beta, 16-alpha, 17-alpha, 21-tetra-hydroxypregna-3, 20-dione 16-alpha, 17-alpha-acetals and 21-esters thereof

Info

Publication number
HK7197A
HK7197A HK7197A HK7197A HK7197A HK 7197 A HK7197 A HK 7197A HK 7197 A HK7197 A HK 7197A HK 7197 A HK7197 A HK 7197A HK 7197 A HK7197 A HK 7197A
Authority
HK
Hong Kong
Prior art keywords
alpha
hydroxypregna
acetals
dione
intermediates
Prior art date
Application number
HK7197A
Inventor
Paul Hakan Andersson
Per Ture Andersson
Bengt Ingemar Axelsson
Bror Arne Thalen
Jan William Trofast
Original Assignee
Draco Ab
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 SE8501693A external-priority patent/SE8501693D0/en
Application filed by Draco Ab filed Critical Draco Ab
Publication of HK7197A publication Critical patent/HK7197A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J71/00—Steroids in which the cyclopenta(a)hydrophenanthrene skeleton is condensed with a heterocyclic ring
    • C07J71/0005—Oxygen-containing hetero ring
    • C07J71/0026—Oxygen-containing hetero ring cyclic ketals
    • C07J71/0031—Oxygen-containing hetero ring cyclic ketals at positions 16, 17

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
HK7197A 1985-04-04 1997-01-16 Process for the preparation of intermediates for 11-beta, 16-alpha, 17-alpha, 21-tetra-hydroxypregna-3, 20-dione 16-alpha, 17-alpha-acetals and 21-esters thereof HK7197A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8501693A SE8501693D0 (en) 1985-04-04 1985-04-04 NOVEL 16,17-ACETALSUBSTITUTED ANDROSTANE-17BETA-CARBOXYLIC ACID ESTERS
EP86850103A EP0197018B1 (en) 1985-04-04 1986-03-21 16,17-acetal-substituted androstane-17-beta-carboxylic-acid esters, process for their preparation and pharmaceutical compound containing them

Publications (1)

Publication Number Publication Date
HK7197A true HK7197A (en) 1997-01-24

Family

ID=26106671

Family Applications (1)

Application Number Title Priority Date Filing Date
HK7197A HK7197A (en) 1985-04-04 1997-01-16 Process for the preparation of intermediates for 11-beta, 16-alpha, 17-alpha, 21-tetra-hydroxypregna-3, 20-dione 16-alpha, 17-alpha-acetals and 21-esters thereof

Country Status (1)

Country Link
HK (1) HK7197A (en)

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Legal Events

Date Code Title Description
PF Patent in force
PE Patent expired

Effective date: 20060320