[{"from": "human", "value": "Provide a brief overview of this molecule. [C][N][Branch1][C][C][C@H1][C@@H1][C][C@@H1][C][C][=C][Branch2][Ring2][#C][C][=C][C][=Branch2][Ring2][Branch2][=C][Ring1][=Branch1][C][=Branch2][Ring1][S][=C][Ring1][#Branch2][C][=Branch1][C][=O][C@@][Ring1][#C][Branch2][Ring1][C][C][=Branch1][=C][=C][Branch1][=Branch1][C][Ring2][Ring1][Ring1][=O][C][=Branch1][C][=O][N][O][O][O][O][N][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is a second generation tetracycline antibiotic that is active against gram-negative and gram-positive bacteria. Like other semisynthetic tetracyclines, minocycline has modifications to carbons 7-9 on the D ring to generate higher efficacy than previous tetracyclines.  Minocycline was granted FDA approval on 30 June 1971."}]