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. 1999 Apr;62(4):569-72.
doi: 10.1021/np980485t.

Oxidized welwitindolinones from terrestrial fischerella spp

JI Jimenez  1 , U Huber, RE Moore, GM Patterson
Affiliations

Oxidized welwitindolinones from terrestrial fischerella spp

JI Jimenez et al. J Nat Prod. 1999 Apr.

Abstract

3-Hydroxy-N-methylwelwitindolinone C isonitrile (3), 3-hydroxy-N-methylwelwitindolinone C isothiocyanate (4), and the novel cyclic ether N-methylwelwitindolinone D isonitrile (6) are three new alkaloids from two terrestrial Fischerella spp. belonging to the Stigonemataceae. Photooxidation of N-methylwelwitindolinone C isonitrile (1) leads to isonitriles 3 and 6. Isonitrile 3 is readily hydrated to 3-hydroxy-N-methylwelwitindolinone C formamide (5), an artifact produced during the isolation procedure.

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