CH547271A - Verfahren zur herstellung neuer gem-difluorsteroide. - Google Patents
Verfahren zur herstellung neuer gem-difluorsteroide.Info
- Publication number
- CH547271A CH547271A CH296470A CH547271DA CH547271A CH 547271 A CH547271 A CH 547271A CH 296470 A CH296470 A CH 296470A CH 547271D A CH547271D A CH 547271DA CH 547271 A CH547271 A CH 547271A
- Authority
- CH
- Switzerland
- Prior art keywords
- difluor
- steroids
- producing new
- new gem
- gem
- Prior art date
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US80395569A | 1969-03-03 | 1969-03-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH547271A true CH547271A (de) | 1974-03-29 |
Family
ID=25187844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH296470A CH547271A (de) | 1969-03-03 | 1970-02-27 | Verfahren zur herstellung neuer gem-difluorsteroide. |
Country Status (5)
Country | Link |
---|---|
US (1) | US3644341A (de) |
CH (1) | CH547271A (de) |
DE (1) | DE2007176A1 (de) |
ES (1) | ES377060A1 (de) |
GB (1) | GB1285263A (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4028349A (en) * | 1976-03-08 | 1977-06-07 | Hoffmann-La Roche Inc. | Syntheses of 24R,25- and 24S,25-dihydroxycholesterol 24,25-ketals and alkanoyl derivatives thereof |
-
1969
- 1969-03-03 US US803955A patent/US3644341A/en not_active Expired - Lifetime
-
1970
- 1970-02-17 DE DE19702007176 patent/DE2007176A1/de active Pending
- 1970-02-24 GB GB8907/70A patent/GB1285263A/en not_active Expired
- 1970-02-27 CH CH296470A patent/CH547271A/de not_active IP Right Cessation
- 1970-03-02 ES ES377060A patent/ES377060A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3644341A (en) | 1972-02-22 |
ES377060A1 (es) | 1972-05-16 |
DE2007176A1 (de) | 1970-09-10 |
GB1285263A (en) | 1972-08-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |