Title:
ESTERS OF BETAALACTAM ANTIBIOTIC*THEIR MANUFACTURE AND COMPOSITION
Document Type and Number:
Japanese Patent JPS54125694
Kind Code:
A
Abstract:
The compounds of the formulae (V) - (X): wherein R is a group of the sub-formula (a), (b) or (c): -CHR1-O-CO-R2 (a) -CHR1-O-CO-OR2 (b) Artworks where R1 is a hydrogen atom or a methyl or ethyl group; R2 is a lower alkyl, lower-alkylaryl or aryl group; and R3 is a -CHR4-CHR4 or CR5=CR5 group where R4 is a hydrogen atom or a methyl group and R5 is a hydrogen atom, a methyl group or R4 and R5 together with the carbon atoms to which they are attached form the residue of a phenyl group or of a phenyl group substituted by one or two lower alkyl or lower alkoxyl groups of fluorine, chlorine or bromine atoms; and R<1> is a lower alkyl, lower alkenyl, lower alkylnyl or aralkyl group; are antibacterial agents. Their preparation and compositions are described.
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Inventors:
DEIBITSUDO FURANSHISU KORUBETS
Application Number:
JP2501479A
Publication Date:
September 29, 1979
Filing Date:
March 02, 1979
Export Citation:
Assignee:
BEECHAM GROUP LTD
International Classes:
C07D477/00; A61K31/397; A61K31/40; A61P31/04; C07D477/08; C07D477/20; (IPC1-7): A61K31/40; C07D487/04