62438-11-3Relevant academic research and scientific papers
Antibacterial hydrazono cephalosporins
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, (2008/06/13)
Antibacterial cephalosporins of the following formula: STR1 WHEREIN A and B each is a hydrogen or an amino protecting group; X is a hydroxy or a carboxy protecting group; Y is a hydrogen, halogen, alkyl, alkoxy, or an alkylthio; R is a hydrogen or an alkyl; Z is a group of the formula STR2 (in which R1 and R2 are the same or different and are a hydrogen, optionally substituted hydrocarbon group, organic acyl, or a group of the formula STR3 respectively, in which M and M' are the same or different and are an oxygen or sulfur; R3 is a hydrocarbon group; R1 and R2 can be combined together directly or through a hetero atom); m is 0 or 1; and the broken line shows the presence of a double bond at position 2 or 3, preparable from the compounds shown by the above formula in which Z is an oxygen by treatment with a compound shown by the formula H2 Z; and pharmaceuticals containing these compounds.
