A bisindole alkaloid with hedgehog signal inhibitory activity from the myxomycete perichaena chrysosperma

Abstract

6-Hydroxy-9'-methoxystaurosporinone (1), a new bisindole alkaloid, was isolated from field-collected fruiting bodies of the myxomycete Perichaena chrysosperma, together with two known compounds. The structure of the new alkaloid was elucidated from spectral data, and compound 1 was shown to have hedgehog signal inhibitory activity. A related new alkaloid, 6,9'-dihydroxystaurosporinone (4), was also isolated from Arcyria cinerea.

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