Novoamauromine and ent-Cycloechinulin: Two New Diketopiperazine Derivatives from Aspergillus novofumigatus

Novoamauromine and ent-Cycloechinulin: Two New Diketopiperazine Derivatives from Aspergillus novofumigatus A Novofumigatamide, New Cyclic Tripeptide from Aspergillus novofumigatus The structures of five new didehydropeptides related to neoechinulin, isolated from Aspergillus amstelodami A new diketopiperazine alkaloid from <i>Aspergillus oryzae</i> New Radical Scavenging and Ultraviolet-A Protecting Prenylated Dioxopiperazine Alkaloid Related to Isoechinulin A from a Marine Isolate of the Fungus Aspergillus Novel Mammalian Cell Cycle Inhibitors, Tryprostatins A, B and Other Diketopiperazines Produced by Aspergillus fumigatus. II. Physico-chemical Properties and Structures. Neoechinulin D, a new isoprenylated dehydrotryptophyl metabolite fromAspergillus amstelodami New Diketopiperazine Metabolites from the Sclerotia of Aspergillus ochraceus Aspergilazine A, a diketopiperazine dimer with a rare N-1 to C-6 linkage, from a marine-derived fungus Aspergillus taichungensis A new diketopiperazine heterodimer from an endophytic fungus <i>Aspergillus niger</i>