[{"from": "human", "value": "Describe this molecule. [C][C][=C][Branch2][Branch1][C][C][=Branch1][C][=O][O][C@H1][Branch1][Ring2][C][Ring1][#Branch1][C@@H1][Branch1][C][C][C@H1][C][C][C@@H1][C@@][Ring1][Branch1][Branch2][Ring1][#Branch1][C][C][C@H1][C@H1][Ring1][=Branch1][C][C][C][=C][C][=Branch1][C][=O][C][=C][C@][Ring1][O][Ring1][#Branch1][C][C][=O][C]"}, {"from": "gpt", "value": "The molecule is a withanolide that is 22,26-epoxyergosta-1,4,24-triene-18-al substituted by oxo groups at positions 3 and 26. Isolated from a Formosan soft coral, Paraminabea acronocephala, it exhibits cytotoxic activity. It has a role as a coral metabolite, an antineoplastic agent and an EC 1.14.13.39 (nitric oxide synthase) inhibitor. It is an ergostanoid, a withanolide, a delta-lactone, a 3-oxo-Delta(1),Delta(4)-steroid and a steroid aldehyde."}]