[{"from": "human", "value": "Please give me some details about this molecule. [C][C][=C][C][=Branch2][Ring2][#Branch2][=C][C@H1][C@H1][C@][Branch2][Ring1][#Branch1][C][C][C@@H1][C@][Ring1][=Branch1][Branch1][O][C][C][C][C][Ring1][=Branch1][Branch1][C][C][C][C][O][Ring1][#C][Branch1][#Branch2][O][C][Ring2][Ring1][C][=C][Ring2][Ring1][=Branch1][C][O]"}, {"from": "gpt", "value": "The molecule is a succinate dehydrogenase inhibitor originally isolated from the pathogenic fungus Helminthosposium siccans with antifungal activity. Siccanin, in a quinone-dependent manner, inhibits succinate dehydrogenase in the terminal electron transport chain thereby disrupting cellular respiration."}]