[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a doubly-charged nucleotide-sugar oxoanion obtained by deprotonation of the diphosphate OH groups of (S)-NADHX; major species at pH 7.3. It is functionally related to a NADH(2-). It is a conjugate base of a (S)-NADHX(1-)."}, {"from": "gpt", "value": "[C][C][C][=Branch2][=Branch1][=C][=C][N][Branch1][Branch1][C@H1][Ring1][=Branch1][O][C@H1][C@@H1][Branch2][Branch1][S][C@@H1][Branch2][Branch1][O][C@H1][Branch1][Ring2][O][Ring1][Branch1][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][C@@H1][C@H1][Branch2][Ring1][N][C@H1][Branch2][Ring1][#Branch1][C@@H1][Branch1][Ring2][O][Ring1][Branch1][N][C][=N][C][=C][Branch1][=Branch2][N][=C][N][=C][Ring1][=Branch1][Ring1][=Branch2][N][O][O][O][O][C][=Branch1][C][=O][N]"}]