[{"from": "human", "value": "Please give me some details about this molecule. [C][C][N][Branch1][Ring1][C][C][C][C][C][C][Branch1][C][C][N][C][=C][C][=C][C][=Branch1][#Branch2][=C][C][Ring1][=Branch1][=N][C][=C][Ring1][#Branch2][Cl]"}, {"from": "gpt", "value": "The molecule is an aminoquinolone derivative first developed in the 1940s for the treatment of malaria. It was the drug of choice to treat malaria until the development of newer antimalarials such as [pyrimethamine], [artemisinin], and [mefloquine]. Chloroquine and its derivative [hydroxychloroquine] have since been repurposed for the treatment of a number of other conditions including HIV, systemic lupus erythematosus, and rheumatoid arthritis.  **The FDA emergency use authorization for [hydroxychloroquine] and chloroquine in the treatment of COVID-19 was revoked on 15 June 2020.**  Chloroquine was granted FDA Approval on 31 October 1949."}]