[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][N][=C][Branch2][Ring1][S][N][=C][Ring1][=Branch1][N][C][=C][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][S][=Branch1][C][=O][=Branch1][C][=O][N][C][Branch1][C][C][Branch1][C][C][C][N][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][C][N][C][C][C][C][Ring1][Branch1]"}, {"from": "gpt", "value": "The molecule is a tyrosine kinase inhibitor used to treat intermediate-2 and high risk primary and secondary myelofibrosis. It is an anilinopyrimidine derivative.  Fedratinib was granted FDA approval on August 16, 2019."}]