KR970042559A - Simple Method of Making Cemfe Derivatives - Google Patents
Simple Method of Making Cemfe Derivatives Download PDFInfo
- Publication number
- KR970042559A KR970042559A KR1019950055057A KR19950055057A KR970042559A KR 970042559 A KR970042559 A KR 970042559A KR 1019950055057 A KR1019950055057 A KR 1019950055057A KR 19950055057 A KR19950055057 A KR 19950055057A KR 970042559 A KR970042559 A KR 970042559A
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- formula
- compound
- methyl group
- chloride
- methyl
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- Cephalosporin Compounds (AREA)
Abstract
본 발명은 트리페닐포스핀((C6H5)3P)을 출발물질로하여 이것을 사염화탄소(CCL4)로 처리하여 트리페닐클로로메틸포스포늄 클로라이드 ((C6H5)3P+CCL3)(CL-)를 만들고, 분리과정 없이 바로 구조식(2) 화합물과 반응시켜 구조식(3)의 트리아릴아실옥시포스포늄클로라이드를 재조하고, 이 화합물을 구조식(4)에 대응하는 산클로라이드로 전환한 후, 이들을 구조식(5)의 화합물과 반응시킴으로서 목적하는 구조식(1)의 아실화물을 높은 수율로 재조하는 방법에 관한 것이다.The present invention treats triphenylphosphine ((C 6 H 5 ) 3 P) as a starting material and treats it with carbon tetrachloride (CCL 4 ) to give triphenylchloromethylphosphonium chloride ((C 6 H 5 ) 3 P + CCL 3 ) To form a (CL-) and react with the compound of formula (2) immediately without separation to prepare triarylacyloxyphosphonium chloride of formula (3), and convert the compound to the acid chloride corresponding to formula (4). Thereafter, the present invention relates to a method for preparing the acyl compound of the desired structural formula (1) in high yield by reacting them with the compound of the structural formula (5).
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950055057A KR970042559A (en) | 1995-12-22 | 1995-12-22 | Simple Method of Making Cemfe Derivatives |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950055057A KR970042559A (en) | 1995-12-22 | 1995-12-22 | Simple Method of Making Cemfe Derivatives |
Publications (1)
Publication Number | Publication Date |
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KR970042559A true KR970042559A (en) | 1997-07-24 |
Family
ID=66616887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950055057A KR970042559A (en) | 1995-12-22 | 1995-12-22 | Simple Method of Making Cemfe Derivatives |
Country Status (1)
Country | Link |
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KR (1) | KR970042559A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100432425B1 (en) * | 2000-11-16 | 2004-05-22 | 씨제이 주식회사 | Novel method for preparation of cephem derivatives or salts thereof |
-
1995
- 1995-12-22 KR KR1019950055057A patent/KR970042559A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100432425B1 (en) * | 2000-11-16 | 2004-05-22 | 씨제이 주식회사 | Novel method for preparation of cephem derivatives or salts thereof |
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A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E601 | Decision to refuse application |