[{"from": "human", "value": "Please give me some details about this molecule. [C][C][C@@H1][C][C][N][C@@H1][Branch1][Ring2][C][Ring1][=Branch1][C][=Branch1][C][=O][N][C@@H1][Branch2][Ring1][=Branch1][C@@H1][C@@H1][Branch1][P][C@@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][S][C][O][O][O][C@H1][Branch1][C][C][Cl]"}, {"from": "gpt", "value": "The molecule is a derivative of clindamycin with a 6-membered ring replacing clindamycin's 5-membered ring. Compared to clindimycin, pirlimycin has increased activity against gram-positive bacteria, including Staphylococcus aureus and coagulase negative species of Staphylococcus and Streptococcus. This agent is primarily used in the treatment of mastitis in cattle."}]