[{"from": "human", "value": "Describe this molecule. [C][C@H1][C][C@@H1][Branch1][#Branch2][O][C][=Branch1][C][=O][C@H1][Ring1][#Branch1][C][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][=Branch1][C][=O][C]"}, {"from": "gpt", "value": "The molecule is a withanolide that is 22,26-epoxyergosta-1,4-diene substituted by an acetyloxy group at position 18 and oxo groups at positions 3 and 26. Isolated from a Formosan soft coral Paraminabea acronocephala, it has been found to inhibit the accumulation of the pro-inflammatory iNOS protein. It has a role as a coral metabolite and an EC 1.14.13.39 (nitric oxide synthase) inhibitor. It is a delta-lactone, an acetate ester, an ergostanoid, a withanolide, a steroid ester and a 3-oxo-Delta(1),Delta(4)-steroid."}]