GB1436670A - Preparation of alpha-6-deoxy-5-oxytetracycline - Google Patents
Preparation of alpha-6-deoxy-5-oxytetracyclineInfo
- Publication number
- GB1436670A GB1436670A GB2545174A GB2545174A GB1436670A GB 1436670 A GB1436670 A GB 1436670A GB 2545174 A GB2545174 A GB 2545174A GB 2545174 A GB2545174 A GB 2545174A GB 1436670 A GB1436670 A GB 1436670A
- Authority
- GB
- United Kingdom
- Prior art keywords
- deoxy
- oxytetracycline
- group
- oxytetracyline
- isomer
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Abstract
1436670 α - 6 - Deoxy - 5 - oxytetracyline CHINOIN GYOGYSZER-ES VEGYESZETI TERMEKEK GYARA RT 7 June 1974 [8 June 1973] 25451/74 Heading C2C [Also in Division B1] α - 6 - Deoxy - 5 - hydroxy - tetracyline or a salt thereof is prepared by hydrogenating a compound I in which X is hydrogen, chlorine, bromine or iodine or a salt thereof in the presence of an alloy catalyst which contains at least one noble metal of Group VIII of the Periodic Table with at least one metal selected from Group Ib. The catalyst is supported on activated carbon silica or alumina. The method yields the α-isomer in preference to the #-isomer; the reaction in the absence of a Group Ib metal yields a mixture of starting material, 5a,6-anhydro-oxytetracyline and α-apo-oxytetracycline.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HUCI1387A HU167250B (en) | 1973-06-08 | 1973-06-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1436670A true GB1436670A (en) | 1976-05-19 |
Family
ID=10994484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2545174A Expired GB1436670A (en) | 1973-06-08 | 1974-06-07 | Preparation of alpha-6-deoxy-5-oxytetracycline |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5052051A (en) |
| AT (1) | AT332969B (en) |
| BE (1) | BE816029A (en) |
| CS (1) | CS175748B1 (en) |
| DD (1) | DD113894A1 (en) |
| DK (1) | DK307174A (en) |
| ES (1) | ES427070A1 (en) |
| FR (1) | FR2232539A1 (en) |
| GB (1) | GB1436670A (en) |
| HU (1) | HU167250B (en) |
| PL (1) | PL93707B1 (en) |
| SU (1) | SU632298A3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086165A (en) * | 2010-12-29 | 2011-06-08 | 开封制药(集团)有限公司 | Application of Pd catalyst in hydrogenation process for producing doxycycline |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK386784A (en) * | 1983-08-17 | 1985-02-18 | Hovione Int Ltd | PROCEDURE FOR PREPARING ALFA-6-DESOXY-TETRACYCLINES |
| HU198173B (en) * | 1987-09-18 | 1989-08-28 | Chinoin Gyogyszer Es Vegyeszet | Process for producing doxycycline |
| ATE68476T1 (en) * | 1989-04-03 | 1991-11-15 | Ranbaxy Lab Ltd | PROCESS FOR THE PRODUCTION OF ALPHA-6DEOXYTETRACYCLINES. |
-
1973
- 1973-06-08 HU HUCI1387A patent/HU167250B/hu unknown
-
1974
- 1974-03-04 CS CS743969A patent/CS175748B1/en unknown
- 1974-06-04 AT AT457574A patent/AT332969B/en not_active IP Right Cessation
- 1974-06-06 FR FR7419510A patent/FR2232539A1/fr not_active Withdrawn
- 1974-06-06 SU SU742032110A patent/SU632298A3/en active
- 1974-06-06 DD DD178988A patent/DD113894A1/xx unknown
- 1974-06-07 JP JP49064162A patent/JPS5052051A/ja active Pending
- 1974-06-07 PL PL1974171743A patent/PL93707B1/pl unknown
- 1974-06-07 DK DK307174A patent/DK307174A/da not_active Application Discontinuation
- 1974-06-07 BE BE145164A patent/BE816029A/en unknown
- 1974-06-07 GB GB2545174A patent/GB1436670A/en not_active Expired
- 1974-06-07 ES ES427070A patent/ES427070A1/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086165A (en) * | 2010-12-29 | 2011-06-08 | 开封制药(集团)有限公司 | Application of Pd catalyst in hydrogenation process for producing doxycycline |
| CN102086165B (en) * | 2010-12-29 | 2013-06-19 | 开封制药(集团)有限公司 | Application of Pd catalyst in hydrogenation process for producing doxycycline |
Also Published As
| Publication number | Publication date |
|---|---|
| ES427070A1 (en) | 1976-07-16 |
| FR2232539A1 (en) | 1975-01-03 |
| PL93707B1 (en) | 1977-06-30 |
| DD113894A1 (en) | 1975-07-05 |
| ATA457574A (en) | 1976-02-15 |
| SU632298A3 (en) | 1978-11-05 |
| CS175748B1 (en) | 1977-05-31 |
| DK307174A (en) | 1975-02-03 |
| BE816029A (en) | 1974-09-30 |
| JPS5052051A (en) | 1975-05-09 |
| HU167250B (en) | 1975-09-27 |
| AT332969B (en) | 1976-10-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |