SMILES: CC1=C(C(=O)O[C@H](C1)[C@@H](C)[C@H]2CC[C@@H]3[C@@]2(CC[C@H]4[C@H]3C[C@@H]5[C@]6([C@@]4(C(=O)C=C[C@@H]6O)CO)O5)C)C
Description: The molecule is a withanolide that is 27-deoxywithaferin A substituted by a hydroxy group at position 19. Isolated from Physalis longifolia, it exhibits antineoplastic activity. It has a role as an antineoplastic agent. It is a delta-lactone, a 4-hydroxy steroid, an enone, an ergostanoid, a primary alcohol, a secondary alcohol, a withanolide and an epoxy steroid. It derives from a withaferin A.