[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C@][C][C][C@@H1][Branch2][Ring2][#Branch2][C][C@H1][Ring1][=Branch1][C][C][C][C][Ring1][#Branch2][C][C][C@][Branch2][Ring1][=Branch2][C@][Ring1][=Branch1][C@H1][Branch1][Ring2][O][Ring1][Ring1][C][C@@H1][Ring1][=Branch1][C][=C][O][C][=Branch1][C][=O][C][=C][Ring1][#Branch1][C][O]"}, {"from": "gpt", "value": "The molecule is a bufadienolide toxin originally isolated from the venom of the Chinese toad Bufo gargarizans; it is also one of the glycosides in the traditional Chinese medicine ChanSu, with potential cardiotonic activity. Although the mechanism of action of bufogenin is still under investigation, this agent is a specific Na+/K+-ATPase inhibitor and has been shown to reduce blood pressure in a rat model of preeclampsia."}]