KR970010772A - New preparation of 7-amino-3-methoxymethyl-3-cepem-4-carboxylic acid - Google Patents
New preparation of 7-amino-3-methoxymethyl-3-cepem-4-carboxylic acid Download PDFInfo
- Publication number
- KR970010772A KR970010772A KR1019950025313A KR19950025313A KR970010772A KR 970010772 A KR970010772 A KR 970010772A KR 1019950025313 A KR1019950025313 A KR 1019950025313A KR 19950025313 A KR19950025313 A KR 19950025313A KR 970010772 A KR970010772 A KR 970010772A
- Authority
- KR
- South Korea
- Prior art keywords
- cepem
- methoxymethyl
- amino
- carboxylic acid
- new preparation
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D501/00—Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
- C07D501/02—Preparation
- C07D501/04—Preparation from compounds already containing the ring or condensed ring systems, e.g. by dehydrogenation of the ring, by introduction, elimination or modification of substituents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D501/00—Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
- C07D501/14—Compounds having a nitrogen atom directly attached in position 7
- C07D501/16—Compounds having a nitrogen atom directly attached in position 7 with a double bond between positions 2 and 3
- C07D501/18—7-Aminocephalosporanic or substituted 7-aminocephalosporanic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Cephalosporin Compounds (AREA)
Abstract
본 발명은 7-아미노-3-메톡시메틸-3-세펨-4-카르복실산의 개량된 제조방법에 관한 것이며, 7-ACA 또는 그 염을 메탄술폰산과 염화수소메탄올 용액과 반응시켜서 간단하게 높은 수율과 순도로 목적화합물을 제조할 수 있다.The present invention relates to an improved process for the preparation of 7-amino-3-methoxymethyl-3-cepem-4-carboxylic acid, wherein 7-ACA or a salt thereof is reacted with a solution of methanesulfonic acid and hydrogen chloride The desired compound can be prepared in yield and purity.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950025313A KR0164947B1 (en) | 1995-08-17 | 1995-08-17 | Process for the preparation of 7-amino-3-methoxymethyl-3-cephem-4-carboxylic acids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950025313A KR0164947B1 (en) | 1995-08-17 | 1995-08-17 | Process for the preparation of 7-amino-3-methoxymethyl-3-cephem-4-carboxylic acids |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970010772A true KR970010772A (en) | 1997-03-27 |
KR0164947B1 KR0164947B1 (en) | 1999-01-15 |
Family
ID=19423670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950025313A KR0164947B1 (en) | 1995-08-17 | 1995-08-17 | Process for the preparation of 7-amino-3-methoxymethyl-3-cephem-4-carboxylic acids |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0164947B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8477568B2 (en) | 2009-03-11 | 2013-07-02 | Jae-Chun Go | Alarm clock which operates in conjunction with a gradually fading-in lamp |
-
1995
- 1995-08-17 KR KR1019950025313A patent/KR0164947B1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8477568B2 (en) | 2009-03-11 | 2013-07-02 | Jae-Chun Go | Alarm clock which operates in conjunction with a gradually fading-in lamp |
Also Published As
Publication number | Publication date |
---|---|
KR0164947B1 (en) | 1999-01-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
LAPS | Lapse due to unpaid annual fee |