SMILES: CC1=C(C(=O)O[C@H](C1)[C@@H](C)[C@]23[C@H](O2)C[C@@H]4[C@@]3(CC[C@H]5[C@H]4C[C@@H]6[C@]7([C@@]5(C(=O)C=C[C@@H]7O)C)O6)C)C
Description: The molecule is a withanolide that is 5beta,6beta:16alpha,17alpha-diepoxywitha-2,24-dienolide substituted by a hydroxy group at position 4 and an oxo group at position 1. Isolated from Tubocapsicum anomalum, it exhibits cytotoxic activity. It has a role as an antineoplastic agent and a NF-kappaB inhibitor. It is a delta-lactone, a 4-hydroxy steroid, an enone, an ergostanoid, a secondary alcohol, a withanolide and an epoxy steroid.