[{"from": "human", "value": "Provide a description of this molecule. [C][C][N][Branch2][Branch1][Ring1][C][C][C][Ring1][=Branch1][C][C][=Branch1][C][=O][N][C][C][C][Branch1][Branch1][C][C][Ring1][=Branch1][C@@H1][C][=C][Branch1][S][C][C][C][=C][Ring1][#Branch1][N][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][Br][C][=C][Branch1][=Branch1][C][=C][Ring1][#C][Br][Cl][C][=Branch1][C][=O][N]"}, {"from": "gpt", "value": "The molecule is an oral, small molecule inhibitor of farnesyltransferase that is used to treat Hutchison-Gilford progeria syndrome and is under investigation as therapy of chronic hepatitis D. Lonafarnib is associated with transient and usually mild elevations in serum aminotransferase levels during therapy, but has not been linked to cases of clinically apparent acute liver injury."}]