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Cycloechinulin, a Trp-Ala-derived alkaloid from the fungus Aspergillus ochraceus (2001)

Hansen, Lars Kr. ; Størmer, Fredrik C. ; Petersen, Dirk ; [et al.]

Copenhagen : International Union of Crystallography (IUCr)

Acta crystallographica 57 (2001), S. o909-o912

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ISSN: 1600-5368

Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001

Topics: Chemistry and Pharmacology , Geosciences , Physics

Notes: The structure of the Trp–Ala-derived, non-basic alkaloid cycloechinulin from the mycelial mat of the fungus Aspergillus ochraceus is described; systematic name: (3S)-2,3,8,9-tetrahydro-11-methoxy-3,8,8-trimethylpyrazino[1′,2′:1,2]azocino[5,4-b]indole-1,4-dione–methanol (4/1), C20H21N3O3·0.25CH4O. There are four independent molecules plus one methanol molecule in the asymmetric unit. The conformations of molecules 1–3 are almost identical, while molecule 4 shows a different conformation in the fused 8–6 ring moiety.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1107/S1600536801014234

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