Novel 7 piperazino and {HEAD ~ 7 N methylpiperazino derivatives} of 5 amino 1 cyclopropyl 6,8 dihydro 1,4 dihydro 4 oxoquinoline 3 carboxylic acids as {TAIL ~ antibacterial agents} are described as well as methods for their manaufacture, formulation, and use in treating bacterial infections 
Novel 7 piperazino and { HEAD ~ 7 N methylpiperazino derivatives } of 5 amino 1 cyclopropyl 6,8 dihydro 1,4 dihydro 4 oxoquinoline 3 carboxylic acids as { TAIL ~ antibacterial agents } are described as well as methods for their manaufacture , formulation , and use in treating bacterial infections
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