GR890100706A - Method of preparation of cepheme derivatives - Google Patents

Method of preparation of cepheme derivatives

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Publication number
GR890100706A
GR890100706A GR890100706A GR890100706A GR890100706A GR 890100706 A GR890100706 A GR 890100706A GR 890100706 A GR890100706 A GR 890100706A GR 890100706 A GR890100706 A GR 890100706A GR 890100706 A GR890100706 A GR 890100706A
Authority
GR
Greece
Prior art keywords
preparation
cepheme
derivatives
oxygen
compound
Prior art date
Application number
GR890100706A
Other languages
Greek (el)
Inventor
Sun Lee Gwan
Ku Moon Soon
Ki Lim Sung
Original Assignee
Han Mi Pharma Ind Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Han Mi Pharma Ind Co Ltd filed Critical Han Mi Pharma Ind Co Ltd
Publication of GR890100706A publication Critical patent/GR890100706A/en

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  • Cephalosporin Compounds (AREA)

Abstract

Η παρούσα εφεύρεση αναφέρεται σε μια ένωση του τύπου /VI/: ΧΗΜΙΚΗ ΕΝΩΣΗ στην οποία το κά?ε R4, είτε είναι το ίδιο είτε διαφορετικό, είναι κατώτερο αλκύλιο ή αρύλιο και το Χ είναι οξυγόνο ή ?είο. Οι ενώσεις είναι χρήσιμες σαν ενδιάμεσα προιόντα στην παρασκευή κεφαλοσπορανικών παραγόντων. ωThe present invention relates to a compound of the formula /VI/: CHEMICAL COMPOUND in which R4, whether the same or different, is lower alkyl or aryl and X is oxygen or oxygen. The compounds are useful as intermediates in the preparation of cephalosporan agents. oh

GR890100706A 1989-10-31 1989-10-31 Method of preparation of cepheme derivatives GR890100706A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR89100706 1989-10-31

Publications (1)

Publication Number Publication Date
GR890100706A true GR890100706A (en) 1992-03-20

Family

ID=10939518

Family Applications (1)

Application Number Title Priority Date Filing Date
GR890100706A GR890100706A (en) 1989-10-31 1989-10-31 Method of preparation of cepheme derivatives

Country Status (1)

Country Link
GR (1) GR890100706A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0002774A1 (en) * 1977-12-24 1979-07-11 Hoechst Aktiengesellschaft Process for acylating 7aminocephem derivatives
EP0175814A2 (en) * 1984-09-27 1986-04-02 Han-Mi Pharma Ind. Co., Ltd. Process for preparing cephem derivatives
DE3720681A1 (en) * 1986-06-25 1988-01-28 Korea Res Inst Chem Tech New 1-sulphonyl:oxyl-6-tri:fluoromethyl-benzotriazole derivs. - useful as coupling agents in prodn. of 7-oxy:imino-acetamido-cephalosporin cpds.
GB2193213A (en) * 1986-07-01 1988-02-03 Korea Res Inst Chem Tech 6-trifluoromethyl-1H-benzotriazol-1-yl diphenylphosphate and its use in preparing cephalosporin derivatives

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0002774A1 (en) * 1977-12-24 1979-07-11 Hoechst Aktiengesellschaft Process for acylating 7aminocephem derivatives
EP0175814A2 (en) * 1984-09-27 1986-04-02 Han-Mi Pharma Ind. Co., Ltd. Process for preparing cephem derivatives
DE3720681A1 (en) * 1986-06-25 1988-01-28 Korea Res Inst Chem Tech New 1-sulphonyl:oxyl-6-tri:fluoromethyl-benzotriazole derivs. - useful as coupling agents in prodn. of 7-oxy:imino-acetamido-cephalosporin cpds.
GB2193213A (en) * 1986-07-01 1988-02-03 Korea Res Inst Chem Tech 6-trifluoromethyl-1H-benzotriazol-1-yl diphenylphosphate and its use in preparing cephalosporin derivatives

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CLAIMS SEARCHED: ALL *

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