ES473484A1 - A procedure for the preparation of new eteres of the clavulan acid (Machine-translation by Google Translate, not legally binding) - Google Patents

A procedure for the preparation of new eteres of the clavulan acid (Machine-translation by Google Translate, not legally binding)

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Publication number
ES473484A1
ES473484A1 ES473484A ES473484A ES473484A1 ES 473484 A1 ES473484 A1 ES 473484A1 ES 473484 A ES473484 A ES 473484A ES 473484 A ES473484 A ES 473484A ES 473484 A1 ES473484 A1 ES 473484A1
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ES
Spain
Prior art keywords
translation
preparation
new
machine
legally binding
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
ES473484A
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.)
Beecham Group PLC
Original Assignee
Beecham Group PLC
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 PLC filed Critical Beecham Group PLC
Publication of ES473484A1 publication Critical patent/ES473484A1/en
Expired legal-status Critical Current

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  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Saccharide Compounds (AREA)

Abstract

A process for the preparation of new clavulanic acid ethers of formula (I) ** formula ** or a salt or ester thereof where R1 is a hydrogen atom or a lower alkyl, aryl or aralkyl group, R2 and R3 are independently hydrogen or a lower alkyl, aryl or aralkyl group R2 and R3 are independently hydrogen, aryl, aralkyl, lower alkyl or substituted alkyl, or R3 binds to R1 to form a 4, 5 or 6-membered ring or binds to R2 to forming a 5- or 6-membered ring, the process of which comprises a) reacting an ester of clavulanic acid with a compound of the formula (XV) Y-CHR1-NR-CO-R3 where R1, R2 and R3 are those defined with relative to formula (I) and Y is a movable group, b) optionally converting the ester thus formed into the free acid or salt thereof (Machine-translation by Google Translate, not legally binding)
ES473484A 1977-09-20 1978-09-19 A procedure for the preparation of new eteres of the clavulan acid (Machine-translation by Google Translate, not legally binding) Expired ES473484A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB3904077 1977-09-20
GB3925177 1977-09-21
GB7826989 1978-06-15
GB7827497 1978-06-21

Publications (1)

Publication Number Publication Date
ES473484A1 true ES473484A1 (en) 1979-11-01

Family

ID=27448931

Family Applications (1)

Application Number Title Priority Date Filing Date
ES473484A Expired ES473484A1 (en) 1977-09-20 1978-09-19 A procedure for the preparation of new eteres of the clavulan acid (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES473484A1 (en)

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