[{"from": "human", "value": "Describe this molecule. [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][C@H1][C][=Branch1][C][=O][N][C@H1][Branch1][Branch2][C][=Branch1][C][=O][N][Ring1][Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a member of the class of 2,5-diketopiperazines that is piperazine-2,5-dione in which one hydrogen at position 3 and one hydrogen at position 6 are replaced by benzyl groups (the 3S,6S-diastereomer)."}]