title: New diketopiperazines from the entomopathogenic fungus Verticillium hemipterigenum BCC 1449.
abstract: Two new diketopiperazines, bisdethiodi(methylthio)-1-demethylhyalodendrin and 1-demethylhyalodendrin tetrasulfide, together with two known cyclodepsipeptides, enniatins B and B4, and two known pyrones, pyrenocines A and B, were isolated from a culture broth of the entomopathogenic fungus Verticillium hemipterigenum BCC 1449. These structures were elucidated using spectroscopic methods and X-ray crystallography. Antimalarial and cytotoxic activities of these compounds were evaluated.
mesh_terms: D000818:Animals; D000962:Antimalarials / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D002522:Chlorocebus aethiops; D002850:Chromatography, Gel; D002851:Chromatography, High Pressure Liquid; D018360:Crystallography, X-Ray; D005285:Fermentation; D006801:Humans; D007624:KB Cells; D007659:Ketones / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010456:Peptides, Cyclic / Q000302:isolation & purification; D010879:Piperazines / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D010963:Plasmodium falciparum / Q000187:drug effects; D011753:Pyrones / Q000302:isolation & purification; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D014709:Vero Cells; D020172:Verticillium / Q000737:chemistry / Q000378:metabolism*
chemical_list: D000962:Antimalarials; D007659:Ketones; D010456:Peptides, Cyclic; D010879:Piperazines; D011753:Pyrones