[{"from": "human", "value": "Describe this molecule. [C][=C][C@@H1][C][N][C][=Branch1][C][=S][O][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a 5-ethenyl-1,3-oxazolidine-2-thione that has R-configuration. It is a constituent of a traditional Chinese herbal medicine, Radix isatidis. It has a role as an antiviral agent and a plant metabolite. It is an enantiomer of a (S)-goitrin."}]