title: Unusual rearrangement of 3-hydrazino-rifamycins leading to the enlargement of the "natural" ansa bridge.
mesh_terms: D006834:Hydrazines / Q000138:chemical synthesis; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D012294:Rifamycins / Q000138:chemical synthesis*; D013237:Stereoisomerism
chemical_list: C036981:3-hydrazinorifamycin; D006834:Hydrazines; D012294:Rifamycins