[{"from": "human", "value": "Please give me some details about this molecule. [C][C][C][C][=Branch1][C][=O][O][C@H1][C][N][C][C][C@@H1][Branch1][N][C@@H1][Ring1][Branch1][C@H1][Branch1][Branch1][C@@H1][Ring1][=Branch2][O][O][O]"}, {"from": "gpt", "value": "The molecule is a 6-0-butanoyl ester derivative of castanospermine, a compound derived from the Australian chestnut with activity against hepatitis C virus. Celgosivir rapidly converts to castanospermine in the body, where it is a potent inhibitor of alpha-glucosidase I, a host enzyme required for viral assembly, release, and infectivity."}]