[{"from": "human", "value": "Describe this molecule. [C][C][Branch2][Ring1][Branch1][C@@H1][Branch1][=N][N][C@H1][Branch1][Ring2][S][Ring1][Branch1][C][C][Ring1][Branch1][=O][C][=Branch1][C][=O][O][C]"}, {"from": "gpt", "value": "The molecule is a penam that consists of 3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane bearing a carboxy group at position 2 and having (2S,5R)-configuration."}]