ES263083A1 - Un procedimiento para obtener des metilclorotetraciclina purificada - Google Patents
Un procedimiento para obtener des metilclorotetraciclina purificadaInfo
- Publication number
- ES263083A1 ES263083A1 ES0263083A ES263083A ES263083A1 ES 263083 A1 ES263083 A1 ES 263083A1 ES 0263083 A ES0263083 A ES 0263083A ES 263083 A ES263083 A ES 263083A ES 263083 A1 ES263083 A1 ES 263083A1
- Authority
- ES
- Spain
- Prior art keywords
- demethylchlortetracycline
- inorganic acid
- crude
- acid salt
- demethyltetracycline
- 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
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Un procedimiento de obtener desmetilclorotetracilcina purificada, a partir de desmetilclorotetraciclina bruta que también contiene desmetiltetraciclina, caracterizado por disolver dicha desmetilclorotetraciclina bruta en agua por la adición de álcali, filtrar la solución para eliminar impurezas insolubles, y acidificar el filtrado con un ácido mineral, con lo cual precipita una sal de ácido mineral de desmetilclorotetraciclina sustancialmente exenta de desmetiltetraciclina.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US858330A US3023239A (en) | 1959-12-09 | 1959-12-09 | Recrystallization of demethylchlortetracycline |
Publications (1)
Publication Number | Publication Date |
---|---|
ES263083A1 true ES263083A1 (es) | 1961-03-01 |
Family
ID=25328058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0263083A Expired ES263083A1 (es) | 1959-12-09 | 1960-12-07 | Un procedimiento para obtener des metilclorotetraciclina purificada |
Country Status (5)
Country | Link |
---|---|
US (1) | US3023239A (es) |
BE (1) | BE597902A (es) |
CH (1) | CH385419A (es) |
ES (1) | ES263083A1 (es) |
GB (1) | GB915486A (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE40183E1 (en) | 1991-10-04 | 2008-03-25 | Wyeth Holdings Corporation | 7-Substituted-9-substituted amino-6-demethyl-6-deoxytetracyclines |
US5494903A (en) | 1991-10-04 | 1996-02-27 | American Cyanamid Company | 7-substituted-9-substituted amino-6-demethyl-6-deoxytetracyclines |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2671806A (en) * | 1950-02-02 | 1954-03-09 | American Cyanamid Co | Purification of chlortetracycline |
CH365484A (fr) * | 1956-05-28 | 1962-11-15 | American Cyanamid Co | Procédé de préparation d'une substance antibiotique |
US2875247A (en) * | 1956-12-21 | 1959-02-24 | American Cyanamid Co | Refining of tetracycline antibiotics by direct mash extraction |
US2886595A (en) * | 1958-09-30 | 1959-05-12 | Bristol Lab Inc | Tetracycline recovery |
-
1959
- 1959-12-09 US US858330A patent/US3023239A/en not_active Expired - Lifetime
-
1960
- 1960-12-07 ES ES0263083A patent/ES263083A1/es not_active Expired
- 1960-12-07 CH CH1368660A patent/CH385419A/de unknown
- 1960-12-07 BE BE597902A patent/BE597902A/fr unknown
- 1960-12-09 GB GB42438/60A patent/GB915486A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB915486A (en) | 1963-01-16 |
CH385419A (de) | 1964-12-15 |
BE597902A (fr) | 1961-06-07 |
US3023239A (en) | 1962-02-27 |
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