1,8 gebrugde 6-halogeen-4-chinolon-3-carbonzuurderivaten en farmaceutisch preparaat dat een dergelijk derivaat bevat.

摘要

This invention relates to a novel pyridone carboxylic acid derivative having a substituted or unsubstituted cyclopropyl group at the 10-position of pyridobenzoxazine, pyridobenzothiazine or pyridoquinoxaline and a salt thereof, a process for the production thereof and an antibacterial agent comprising the same.