[{"from": "human", "value": "Provide a description of this molecule. [C][N][Branch1][C][C][C][=Branch1][C][=O][C][=C][C][=C][N][=C][Branch1][#C][N][=C][Ring1][=Branch1][N][Ring1][=Branch2][C][C][C][C][C][Ring1][Branch1][N][C][=N][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][C][C][N][C][C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a unique cyclin-dependent kinase inhibitor that is used in combination with aromatase inhibitors in the treatment of postmenopausal women with metastatic breast cancer. Ribociclib is associated with a moderate rate of serum aminotransferase elevations during therapy, and to clinically apparent liver injury in a proportion of these."}]