the in vitro activities of the new spectinomycin analog u-63366 and four new quinolone derivatives , rosoxacin , norfloxacin , ofloxacin , and ciprofloxacin , were compared with those of penicillin , tetracycline , thiamphenicol , cefotaxime , ceftriaxone , and spectinomycin against 222 beta-lactamase-negative and 25 beta-lactamase-positive neisseria gonorrhoeae strains .
C0007554
cefotaxime
C0007561
ceftriaxone