[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is the D-stereoisomer of ribulose. It has a role as an Escherichia coli metabolite and a human metabolite."}, {"from": "gpt", "value": "[C][Branch1][#C][C@H1][Branch1][O][C@H1][Branch1][#Branch1][C][=Branch1][C][=O][C][O][O][O][O]"}]