title: Structure elucidation of angiotensin converting enzyme inhibitor L-681,176 from Streptomyces sp. MA 5143a.
abstract: L-681,176 (1, C12H23N5O7) is an inhibitor of angiotensin converting enzyme produced by Streptomyces sp. MA 5143a. The structure of L-681,176 has been determined by NMR and mass spectral analysis.
mesh_terms: D000806:Angiotensin-Converting Enzyme Inhibitors; D055598:Chemical Phenomena; D002621:Chemistry; D006146:Guanidines; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D009842:Oligopeptides; D013302:Streptomyces / Q000032:analysis*; D013722:Teprotide
chemical_list: D000806:Angiotensin-Converting Enzyme Inhibitors; D006146:Guanidines; D009842:Oligopeptides; C041574:L 681176; D013722:Teprotide