Synthesis and antibacterial activities of novel C(3)-aminopyrimidinyl substituted cephalosporins including against respiratory tract pathogens

Synthesis and antibacterial activities of novel C(3)-aminopyrimidinyl substituted cephalosporins including against respiratory tract pathogens New N-substituted 7-aminocephalosporanic acid derivatives as potential agents against Streptococcus pneumoniae. Synthesis and in vitro activity Novel broad-spectrum and long-acting parenteral cephalosporins having an acyl cyanamide moiety at the C-3 terminal: Synthesis and structure-activity relationships Synthesis and Structure−Activity Relationship of (Lactamylvinyl)cephalosporins Exhibiting Activity against Staphylococci, Pneumococci, and Enterococci Structure-activity relations in cephalosporins prepared from penicillins. 2. Analogs of cephalexin substituted in the 3-methyl group Synthesis and biological evaluation of a series of parenteral 3'-quaternary ammonium cephalosporins Synthesis and antimicrobial properties of substituted .beta.-aminoxypropionyl penicillins and cephalosporins Design, Synthesis, and Biological Evaluations of Novel 7-[7-Amino-7-methyl-5-azaspiro[2.4]heptan-5-yl]-8-methoxyquinolines with Potent Antibacterial Activity against Respiratory Pathogens Synthesis and biological activity of some broad-spectrum N-acylphenylglycine cephalosporins Synthesis and in vitro antibacterial activity of 3-[ N -methyl- N -(3-methyl-1,3-thiazolium-2-yl)amino]methyl cephalosporin derivatives