[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is structurally related to tamoxifen. Like tamoxifen, it is an estrogen agonist for bone tissue and cholesterol metabolism but is antagonistic on mammary and uterine tissue."}, {"from": "gpt", "value": "[C][N][Branch1][C][C][C][C][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][/C][=Branch1][#C][=C][Branch1][Ring2][/C][C][Cl][\\C][=C][C][=C][C][=C][Ring1][=Branch1][/C][=C][C][=C][C][=C][Ring1][=Branch1]"}]