Sporidesmins. Part IX. Isolation and structure of sporidesmin E

R. Rahman, S. Safe, A. Taylor

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46 Scopus citations


Pithomyces chartarum produces metabolites similar to sporidesmin (I) having a sulphur-chlorine ratio greater than two. A fraction having a sulphur-chlorine ratio of three has been isolated and the crystalline material obtained, named sporidesmin E, was converted into sporidesmin when treated with triphenylphosphine. When sporidesmin was sulphurated with phosphorus pentasulphide and sulphur, it was possible to isolate sporidesmin E from the products. The n.m.r. spectrum of sporidesmin E at 25° was complex but at 95° was similar in many respects to the spectrum of sporidesmin. The facts are interpreted in terms of an epitrithiadioxopiperazine formula (III) though dimeric structures are not rigorously excluded.

Original languageEnglish (US)
Pages (from-to)1665-1668
Number of pages4
JournalJournal of the Chemical Society C: Organic Chemistry
Issue number12
StatePublished - 1969

ASJC Scopus subject areas

  • Organic Chemistry


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