Faropenem sodium hemipentahydrate

Farom was launched in Japan for use as an antibiotic against common respiratory tract pathogens. It can be prepared by several related routes of about seven steps starting with tetrahydrofuran-2-thiocarboxylic acid and a silylated azetidinone. It is a broad spectrum oral penem antibiotic that is β-lactamase stable. Farom is the most active β-lactam against anaerobes (more than cefaclor, cefixime and amoxicillin) but also has activity against Gram-positive, Gram-negative and enterobacteria
6alpha-[(R)-1-hydroxyethyl]-2-[(R)-tetrahydrofuran-2-yl]pen-2-em-3-carboxylic acid is a faropenem. It is a conjugate acid of a 6alpha-[(R)-1-hydroxyethyl]-2-[(R)-tetrahydrofuran-2-yl]pen-2-em-3-carboxylate.|Faropenem has been used in trials studying the treatment of Tuberculosis, Pulmonary Tuberculosis, and Community Acquired Pneumonia.|Faropenem is a penem with a tetrahydrofuran substituent at position C2, with broad-spectrum antibacterial activity against many gram-positive and gram-negative aerobes and anaerobes. Compared with imipenem, faropenem has improved chemical stability and reduced central nervous system effects. In addition, faropenem is resistant to hydrolysis by many beta-lactamases.