title: A new saframycin, saframycin R.
mesh_terms: D000900:Anti-Bacterial Agents / Q000096:biosynthesis* / Q000494:pharmacology; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D007546:Isoquinolines / Q000096:biosynthesis / Q000494:pharmacology; D009682:Magnetic Resonance Spectroscopy; D013302:Streptomyces / Q000378:metabolism*
chemical_list: D000900:Anti-Bacterial Agents; D007546:Isoquinolines; C037261:saframycin R