[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][N][Branch1][=Branch2][C][C][C][O][C][C][Ring1][=Branch1][C][=C][C][=Branch2][Ring1][=C][=C][C][=Branch1][Branch1][=C][Ring1][=Branch1][C][C][=Branch1][C][=O][N][C][C][=C][Branch1][O][C][=C][Branch1][=Branch1][N][C][Ring1][=Branch1][=O][C][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][N][C][C][O][C][C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a methyltransferase inhibitor used to treat metastatic or locally advanced epithelioid sarcoma not eligible for complete resection. Tazemetostat was first named in literature as EPZ-6438.  Tazemetaostat was granted FDA approval on 23 January 2020."}]