Community-acquired bacterial pneumonia is an acute infection of the pulmonary parenchyma with symptoms such as fever or hypothermia, chills, rigors, chest pain, and/or dyspnea. The widespread emergence of antibiotic resistant pathogens, including the macrolide-resistant Streptococcus pneumoniae, has resulted in a need for new and effective antibiotics that have activity again CABP pathogens. CEM-101 is the first fluoroketolide with excellent in vitro and in vivo activity against resistant S. pneumoniae and other key typical and atypical bacterial respiratory pathogens.