title: A new carbapenem antibiotic, 6643-X.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D009682:Magnetic Resonance Spectroscopy; D013055:Spectrophotometry, Infrared; D013302:Streptomyces / Q000378:metabolism; D013845:Thienamycins / Q000096:biosynthesis* / Q000378:metabolism
chemical_list: D013845:Thienamycins; C036279:antibiotic 6643-X