IE42404L - Process for preparing esters of 7-amino-caphalosporanic acid¹derivatives. - Google Patents

Process for preparing esters of 7-amino-caphalosporanic acid¹derivatives.

Info

Publication number
IE42404L
IE42404L IE760100A IE10076A IE42404L IE 42404 L IE42404 L IE 42404L IE 760100 A IE760100 A IE 760100A IE 10076 A IE10076 A IE 10076A IE 42404 L IE42404 L IE 42404L
Authority
IE
Ireland
Prior art keywords
caphalosporanic
amino
preparing esters
esters
preparing
Prior art date
Application number
IE760100A
Other versions
IE42404B1 (en
Original Assignee
Beecham Group 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 Beecham Group Ltd filed Critical Beecham Group Ltd
Publication of IE42404L publication Critical patent/IE42404L/en
Publication of IE42404B1 publication Critical patent/IE42404B1/en

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
    • C07D501/14—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
    • C07D501/20—7-Acylaminocephalosporanic or substituted 7-acylaminocephalosporanic acids in which the acyl radicals are derived from carboxylic acids
    • 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

Landscapes

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

Abstract

The use of an iodolactone as esterifying agent in the preparation of lactonyl esters of cephalosporins has the consequence that the tendency of double bonds to migrate during the esterification reaction is markedly reduced. [GB1544404A]
IE100/76A 1975-02-22 1976-01-19 Process for preparing esters of 7-aminocephalosporanic acid derivatives IE42404B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7546/75A GB1544404A (en) 1975-02-22 1975-02-22 Process for preparing esters of 7-amino-cephalosporanic acid derivatives

Publications (2)

Publication Number Publication Date
IE42404L true IE42404L (en) 1976-08-22
IE42404B1 IE42404B1 (en) 1980-07-30

Family

ID=9835213

Family Applications (1)

Application Number Title Priority Date Filing Date
IE100/76A IE42404B1 (en) 1975-02-22 1976-01-19 Process for preparing esters of 7-aminocephalosporanic acid derivatives

Country Status (18)

Country Link
JP (1) JPS51101995A (en)
AR (1) AR212809A1 (en)
AT (1) AT345456B (en)
AU (1) AU505037B2 (en)
BE (1) BE838514A (en)
CA (1) CA1071621A (en)
CH (1) CH619957A5 (en)
DE (1) DE2605159A1 (en)
DK (1) DK72976A (en)
ES (1) ES445009A1 (en)
FI (1) FI760292A (en)
FR (1) FR2301527A1 (en)
GB (1) GB1544404A (en)
IE (1) IE42404B1 (en)
NL (1) NL7601662A (en)
NO (1) NO760577L (en)
SE (1) SE7601534L (en)
ZA (1) ZA76441B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3139534A (en) * 1960-06-17 1964-06-30 Honeywell Regulator Co Pulse characterizing apparatus using saturable core means to effect pulse delay and shaping

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1377661A (en) * 1971-06-05 1974-12-18 Yamanouchi Pharma Co Ltd Oxofuryl ester derivatives of penicillin and cephalosporin
GB1406113A (en) * 1972-10-05 1975-09-17 Leo Pharm Prod Ltd Process for the preparation of cephalosporin estets

Also Published As

Publication number Publication date
JPS51101995A (en) 1976-09-08
GB1544404A (en) 1979-04-19
NO760577L (en) 1976-08-24
ES445009A1 (en) 1977-08-16
BE838514A (en) 1976-08-12
AR212809A1 (en) 1978-10-13
NL7601662A (en) 1976-08-24
DE2605159A1 (en) 1976-09-02
CA1071621A (en) 1980-02-12
CH619957A5 (en) 1980-10-31
FR2301527B1 (en) 1980-03-07
AU505037B2 (en) 1979-11-08
SE7601534L (en) 1976-08-23
ATA118476A (en) 1978-01-15
FI760292A (en) 1976-08-23
ZA76441B (en) 1977-01-26
FR2301527A1 (en) 1976-09-17
IE42404B1 (en) 1980-07-30
AU1133976A (en) 1977-09-01
AT345456B (en) 1978-09-25
DK72976A (en) 1976-08-23

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