ES356543A1 - Process for the preparation of 7-aminocephalosporanic acid and its derivatives - Google Patents

Process for the preparation of 7-aminocephalosporanic acid and its derivatives

Info

Publication number
ES356543A1
ES356543A1 ES356543A ES356543A ES356543A1 ES 356543 A1 ES356543 A1 ES 356543A1 ES 356543 A ES356543 A ES 356543A ES 356543 A ES356543 A ES 356543A ES 356543 A1 ES356543 A1 ES 356543A1
Authority
ES
Spain
Prior art keywords
formula
agent
group
prepared
imino
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
Application number
ES356543A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DSM Delft BV
Original Assignee
Koninklijke Nederlandsche Gist en Spiritusfabriek BV
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 Koninklijke Nederlandsche Gist en Spiritusfabriek BV filed Critical Koninklijke Nederlandsche Gist en Spiritusfabriek BV
Publication of ES356543A1 publication Critical patent/ES356543A1/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02Silicon compounds
    • C07F7/08Compounds having one or more C—Si linkages
    • C07F7/18Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
    • C07F7/1896Compounds having one or more Si-O-acyl linkages
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02Silicon compounds
    • C07F7/08Compounds having one or more C—Si linkages
    • C07F7/0834Compounds having one or more O-Si linkage

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Cephalosporin Compounds (AREA)

Abstract

A 7-aminocephalosporanic acid derivative of Formula I wherein R is H or an esterified OH group, is prepared by treating a 4-silyl ester of Formula II wherein R is as above, R a is an acyl group having any functional groups present blocked, and R b is a silyl group, with an agent (A) to form a 7-imino halide preferably at a temperature below -15 C., treating the 7-imino halide with an agent (B) to form a 7-imino ether, preferably at a temperature below-15 C., and hydrolysing or alcoholysing the product obtained to split the imino ether and form the compound of Formula I. Agent (A) may be phosphorus pentachloride or phosphorus oxychloride and agent (B) is an alcohol e.g. methanol or ethanol. The reaction takes place in the presence of a tertiary amine. The 4-silyl ester of Formula II is prepared by reacting the corresponding free acid or salt thereof with a silylating agent of formula R 1 R 2 R 3 SiX, wherein X is halogen and R 1 , R 2 and R 3 , which may be the same or different, are hydrocarbon radicals or halogen atoms or one of R 1 , R 2 or R 3 may be a hydrogen atom or where X is amino or HNSiR 1 R 2 R 3 and R 1 , R 2 and R 3 may be the same or different and are hydrocarbon radicals. Cephalosporins of Formula III wherein R c is an acyl group other than the R a group present in the starting material, are produced by acylating in a conventional manner the compounds of Formula I. Pharmaceutical compositions comprise a cephalosporin of Formula III when prepared by the process of the invention, and a pharmaceutical carrier.
ES356543A 1967-08-07 1968-07-26 Process for the preparation of 7-aminocephalosporanic acid and its derivatives Expired ES356543A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL676710835A NL150798B (en) 1967-08-07 1967-08-07 PROCESS FOR THE PREPARATION OF 7-AMINOCEPHALOSORANIC ACID AND ITS DERIVATIVES.

Publications (1)

Publication Number Publication Date
ES356543A1 true ES356543A1 (en) 1970-01-16

Family

ID=19800883

Family Applications (1)

Application Number Title Priority Date Filing Date
ES356543A Expired ES356543A1 (en) 1967-08-07 1968-07-26 Process for the preparation of 7-aminocephalosporanic acid and its derivatives

Country Status (13)

Country Link
AT (1) AT280475B (en)
BE (1) BE718824A (en)
CH (1) CH513920A (en)
DK (1) DK142912B (en)
ES (1) ES356543A1 (en)
FR (1) FR1583480A (en)
GB (1) GB1239814A (en)
IE (1) IE32230B1 (en)
IL (1) IL30392A (en)
IT (1) IT1035011B (en)
NL (1) NL150798B (en)
SE (1) SE373591B (en)
YU (1) YU34589B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE758587A (en) * 1969-11-17 1971-05-06 Fujisawa Pharmaceutical Co PROCESS FOR THE PREPARATION OF 7-AMINOCEPHALOSPORANIC ACID DERIVATIVES AND NEW PRODUCTS THUS OBTAINED
JPS4948760B1 (en) * 1970-12-25 1974-12-23
GB1388267A (en) * 1971-06-17 1975-03-26 Glaxo Lab Ltd Preparation of antibiotic compounds
GR70261B (en) * 1977-12-12 1982-09-02 Takeda Chemical Industries Ltd
US4242509A (en) * 1979-04-13 1980-12-30 Eli Lilly And Company Process for producing 7-amino-7-alkoxycephalosporins
AT378774B (en) * 1982-08-06 1985-09-25 Biochemie Gmbh METHOD FOR DEACYLATING PENICILLINES AND CEPHALOSPORINES
AU2002310863A1 (en) 2001-04-19 2002-11-05 Bioferma Murcia, S.A. Enzymatic process for preparing cephalosporanic acid derivatives using alpha-ketoacid derivatives

Also Published As

Publication number Publication date
IT1035011B (en) 1979-10-20
FR1583480A (en) 1969-10-31
DK142912C (en) 1981-10-05
NL6710835A (en) 1969-02-11
BE718824A (en) 1969-01-31
IL30392A (en) 1971-12-29
IE32230B1 (en) 1973-05-16
IL30392A0 (en) 1968-09-26
NL150798B (en) 1976-09-15
CH513920A (en) 1971-10-15
DK142912B (en) 1981-02-23
AT280475B (en) 1970-04-10
GB1239814A (en) 1971-07-21
DE1770980A1 (en) 1972-03-02
DE1770980B2 (en) 1977-04-07
YU34589B (en) 1979-10-31
IE32230L (en) 1969-02-07
YU183368A (en) 1979-04-30
SE373591B (en) 1975-02-10

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