title: Microbial transformation of rifamycin B: a new synthetic approach to rifamycin derivatives.
mesh_terms: D003470:Culture Media; D006863:Hydrogen-Ion Concentration; D003904:Mitosporic Fungi / Q000254:growth & development*; D012294:Rifamycins / Q000096:biosynthesis / Q000302:isolation & purification*
chemical_list: D003470:Culture Media; D012294:Rifamycins; C033974:rifamycin B