Sporidesmins. Part 17. Isolation of sporidesmin H and sporidesmin J

Abstract
Two new sporidesmins have been isolated from the polar constituents of culture extracts of Pithomyces chartarum. One of these, named sporidesmin H, is possibly a 3-cholorindoline (1) and the other, sporidesmin J, is shown to be de-N6-methylsporidesmin (2).