[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a Hyperpolarization-activated Cyclic Nucleotide-gated Channel Blocker. The mechanism of action of ivabradine is as a Hyperpolarization-activated Cyclic Nucleotide-gated Channel Antagonist."}, {"from": "gpt", "value": "[C][N][Branch2][Ring1][N][C][C][C][N][C][C][C][=C][C][=Branch1][#C][=C][Branch1][#Branch2][C][=C][Ring1][=Branch1][C][C][Ring1][O][=O][O][C][O][C][C][C@H1][C][C][=C][C][=Branch1][N][=C][Branch1][#Branch1][C][=C][Ring1][Branch2][Ring1][=Branch1][O][C][O][C]"}]