title: Sirodesmins A, B, C, and B, antiviral epipolythiopiperazine-2,5-diones of fungal origin: X-ray analysis of sirodesmin A diacetate.
mesh_terms: D000900:Anti-Bacterial Agents / Q000302:isolation & purification*; D000998:Antiviral Agents / Q000302:isolation & purification; D003904:Mitosporic Fungi / Q000378:metabolism; D010879:Piperazines / Q000302:isolation & purification; D014961:X-Ray Diffraction
chemical_list: D000900:Anti-Bacterial Agents; D000998:Antiviral Agents; D010879:Piperazines