GB1082954A - Steroid derivatives - Google Patents
Steroid derivativesInfo
- Publication number
- GB1082954A GB1082954A GB4868866A GB4868866A GB1082954A GB 1082954 A GB1082954 A GB 1082954A GB 4868866 A GB4868866 A GB 4868866A GB 4868866 A GB4868866 A GB 4868866A GB 1082954 A GB1082954 A GB 1082954A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkyl
- halogenation
- keto
- carbon atoms
- group
- 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
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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J75/00—Processes for the preparation of steroids in general
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Steroid Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Novel 2 - alkyl - 2 - halogen - 1a , 11a - oxido-d 4 -3-keto steroids of the general Formula I <FORM:1082954/C2/1> wherein X is chlorine or bromine, R represents a lower alkyl group having 1-4 carbon atoms, R4 represents a hydrogen atom or a lower C1-C4 alkyl group and R1 represents a keto group (in which case no substituent R11 is present) or an hydroxyl group free or esterified with an aliphatic, cycloaliphatic, or arylaliphatic carboxylic acid having 1-12 carbon atoms, are obtained by subjecting to halogenation 2-alkyl-11a -hydroxy-1,4.3-keto steroids of the Formula II <FORM:1082954/C2/2> wherein R, R1 and R11 are as defined above, said halogenation being carried out in solution in organic solvents as ethers, chlorinated hydrocarbons, tertiary amides or organic bases or lower aliphatic carboxylic acids.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2056863 | 1963-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1082954A true GB1082954A (en) | 1967-09-13 |
Family
ID=11168914
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4868866A Expired GB1082954A (en) | 1963-10-05 | 1964-10-02 | Steroid derivatives |
| GB4013864A Expired GB1082953A (en) | 1963-10-05 | 1964-10-02 | Steroid derivatives |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4013864A Expired GB1082953A (en) | 1963-10-05 | 1964-10-02 | Steroid derivatives |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH451927A (en) |
| GB (2) | GB1082954A (en) |
-
1964
- 1964-10-02 CH CH1282964A patent/CH451927A/en unknown
- 1964-10-02 GB GB4868866A patent/GB1082954A/en not_active Expired
- 1964-10-02 GB GB4013864A patent/GB1082953A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1082953A (en) | 1967-09-13 |
| CH451927A (en) | 1968-05-15 |
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