SEARCH Articles Figures Tables Antibiotic drug Antibiotics intermediates Antibiotics quinolones Drug synthesis antibiotics Drugs intermediates Drugs, quinolone antibiotic drug Quinolone Quinolone antibiotic drug Quinolone antibiotic drug, synthesis Quinolone antibiotics Quinolone synthesis Quinolones Quinolones quinolone antibiotics Quinolones synthesis Synthesis of Intermediate for Quinolone Antibiotic Drug