Anti-infectives A∥ rights re served Marketed products 1 R R norfloxacin F CooH pefloxacin Et Me R一N N ciproflo H R MP士海医药工业研究院 NDUSTRYAnti-infectives All rights re served Marketed products 1 N O COOH R1 N N F R norfloxacin Et H pefloxacin Et Me ciprofloxacin H R1 R