ceftetrame ( ro 19-5247 ) and cefetamet ( ro 15-8074 ) , two new orally administered aminothiazolyl imimomethoxy cephalosporins , inhibited hemolytic streptococci and streptococcus pneumoniae at less than or equal to 0.5 micrograms/ml but were less active against staphylococci than were cephalexin and cefaclor .
C0007716
cephalexin
C0007537
cefaclor