[{"from": "human", "value": "Provide a description of this molecule. [C][C@][C][C][C@H1][C@H1][Branch1][#Branch2][C@@H1][Ring1][=Branch1][C][C][C][Ring1][=Branch2][=O][C][C][=Branch1][C][=C][C][=C][C][=Branch1][C][=O][C][=C][C@][Ring1][P][Ring1][#Branch1][C]"}, {"from": "gpt", "value": "The molecule is an oral steroidal aromatase inhibitor used in the adjuvant treatment of hormonally-responsive (also called hormone-receptor-positive, estrogen-responsive) breast cancer in postmenopausal women. It irreversibly binds to the active site of the enzyme resulting in permanent inhibition."}]