Trichosterol A, a unique 6/6/6/5/6-fused steroid-alkaloid hybrid with bioherbicidal activity from Trichoderma koningiopsis.

Naturally occurring steroids constitute a class of pharmacologically privileged scaffolds, owing to their rigid tetracyclic frameworks and well-defined stereochemistry, which have served as the basis for numerous clinically important drugs. In this s…

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