[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C@@][C@H1][C][C][C@@H1][Branch1][S][C@@][Ring1][=Branch1][Branch1][#Branch2][C][=Branch1][C][=O][O][C][Ring1][#Branch2][=O][C][O][Ring1][N]"}, {"from": "gpt", "value": "The molecule is a monoterpenoid with an epoxy-bridged cyclic dicarboxylic anhydride structure secreted by many species of blister beetle, and most notably by the Spanish fly, Lytta vesicatoria. Natural toxin inhibitor of protein phosphatases 1 and 2A. It has a role as an EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor and a herbicide. It is a monoterpenoid and a cyclic dicarboxylic anhydride."}]