[{"from": "human", "value": "Describe this molecule. [C][C][=N][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][C][=C][Branch2][Ring1][Ring1][N][=C][Branch1][Ring2][N][Ring1][Branch1][C][N][C][=C][C][=C][C][=C][Ring1][=Branch1][F][C][=C][N][C][=Branch1][=Branch1][=N][C][=N][Ring1][Branch1][C][=C][Ring1][=Branch2]"}, {"from": "gpt", "value": "The molecule is under investigation in clinical trial NCT03724851 (Vactosertib in Combination With Pembrolizumab in Metastatic Colorectal or Gastric Cancer)."}]