The molecule is a withanolide that is the 23-hydroxy derivative of tubocapsanolide A. Isolated from Tubocapsicum anomalum, it exhibits cytotoxic activity. It has a role as an antineoplastic agent. It is a delta-lactone, a 4-hydroxy steroid, an enone, an ergostanoid, a secondary alcohol, a withanolide, a 23-hydroxy steroid and an epoxy steroid. It derives from a tubocapsanolide A.
(1S,2R,6S,7R,9R,11S,12S,14R,16S,17S)-6-hydroxy-16-[(1R)-1-[(2S,3S)-3-hydroxy-4,5-dimethyl-6-oxo-2,3-dihydropyran-2-yl]ethyl]-2,17-dimethyl-8,15-dioxahexacyclo[9.8.0.02,7.07,9.012,17.014,16]nonadec-4-en-3-one