[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a potent androgenic prohormone that is a direct precursor of testosterone and used as a supplement to increase plasma testosterone levels and muscle anabolism. (NCI)"}, {"from": "gpt", "value": "[C][C@][C][C][C][=Branch1][C][=O][C][=C][Ring1][#Branch1][C][C][C@@H1][C@@H1][Ring1][O][C][C][C@][Branch1][#Branch2][C@H1][Ring1][=Branch1][C][C][C][Ring1][Branch1][=O][C]"}]