KR900000888B1 - Process for the preparation of l-6-deoxy tetracyclines - Google Patents
Process for the preparation of l-6-deoxy tetracyclinesInfo
- Publication number
- KR900000888B1 KR900000888B1 KR8610792A KR860010792A KR900000888B1 KR 900000888 B1 KR900000888 B1 KR 900000888B1 KR 8610792 A KR8610792 A KR 8610792A KR 860010792 A KR860010792 A KR 860010792A KR 900000888 B1 KR900000888 B1 KR 900000888B1
- Authority
- KR
- South Korea
- Prior art keywords
- preparation
- deoxy
- deoxy tetracyclines
- deoxytetracyclines
- alpha
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Alpha-6-deoxytetracyclines are prepd. from 6-deoxy-6-dimethyl -6- methylenetetracycline or 11a-chloro-6-deoxy-6-demethyl- 6methylenetetracycline in the presence of triphenylphosphine or a catalyst of formula (I). In the formula, Z means capability of generating bimolecular or trimolecular compound; R'1 is phenyl; benzenesulfonyl or hydrogen; R'2, R'3, R'4 are hydrogen. The alpha- 6-deoxytetracyclines are useful as antiotics.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR8610792A KR900000888B1 (en) | 1982-01-19 | 1986-12-16 | Process for the preparation of l-6-deoxy tetracyclines |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT198274303A PT74303B (en) | 1982-01-19 | 1982-01-19 | PROCESS FOR THE PREPARATION OF NEW CATALYZERS CONTAINING RHODIUM AND USE THEREOF |
PT198276061A PT76061A (en) | 1982-12-30 | 1982-12-30 | Stable homogeneous hydrogenation rhodium catalyst - useful in high yield prodn. of doxycycline by stereospecific hydrogenation |
KR1019830000194A KR870000210B1 (en) | 1982-01-19 | 1983-01-18 | The preparation of rhodium catalysts |
KR8610792A KR900000888B1 (en) | 1982-01-19 | 1986-12-16 | Process for the preparation of l-6-deoxy tetracyclines |
Publications (1)
Publication Number | Publication Date |
---|---|
KR900000888B1 true KR900000888B1 (en) | 1990-02-17 |
Family
ID=27482828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR8610792A KR900000888B1 (en) | 1982-01-19 | 1986-12-16 | Process for the preparation of l-6-deoxy tetracyclines |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR900000888B1 (en) |
-
1986
- 1986-12-16 KR KR8610792A patent/KR900000888B1/en not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A107 | Divisional application of patent | ||
A201 | Request for examination | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20020206 Year of fee payment: 13 |
|
EXPY | Expiration of term |