| abstract |
(57) Abstract: (I) wherein R 1 is an amino group, a methylamino group, a hydroxyl group, a thiol group, a hydrogen atom, R 2 is a pyrrolidinyl group having a substituent, and A is CX 3 or a nitrogen atom, X 1, X 2 is N 1 represented by a halogen atom, Z is a hydrogen atom, an alkyl group, etc.) - (1,2 -Cis-2-halogenocyclopropyl) -substituted pyridonecarboxylic acid derivatives, salts thereof and hydrates thereof. Embedded image [Effect] Since this compound (I) has a strong antibacterial activity, it can be used as a medicine for humans, animals, and fishes, or as a pesticide and food preservative. |