[{"from": "human", "value": "Describe this molecule. [C][C][C@@H1][Branch1][C][C][N][C][=Branch1][C][=O][C][=Branch1][#Branch2][=C][Branch1][=Branch1][N][C][Ring1][#Branch1][=O][C][Br]"}, {"from": "gpt", "value": "The molecule is the (R)-enantiomer of 5-bromo-3-(butan-2-yl)-6-methylpyrimidine-2,4(1H,3H)-dione. It is an enantiomer of a (S)-bromacil."}]