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19‐ O ‐Acetylchaetoglobosin B and 19‐ O ‐Acetylchaetoglobosin D, Two New Metabolites of Chaetomium globosum

1981; Wiley; Volume: 64; Issue: 7 Linguagem: Inglês

10.1002/hlca.19810640710

1522-2675

A. Probst, Christoph Tamm,

Carbohydrate Chemistry and Synthesis

Abstract Two new metabolites have been isolated from cultures of Chaetomium globosum . The structures of 19‐ O ‐acetylchaetoglobosin B ( 4 ) and 19‐ O ‐acetylchaetoglobosin D ( 5 ) are assigned. The 13 C‐NMR. spectra of chaetoglobosin A ( 1 ), 19‐ O ‐acetylchaetoglobosin A ( 2 ), chaetoglobosin C ( 3 ), 19‐ O ‐acetylchaetoglobosin B ( 4 ), 19‐ O ‐acetylchaetoglobosin D ( 5 ) and of cytochalasin G ( 6 ), a (3‐indolyl)‐[11]cytochalasan isolated from Pseudeurotium zonatum , have been interpreted.