On the salts of such compounds and antibacterial compounds of Formula I, the present invention is: [Formula 1] In the formula, R 1 represents (especially methoxy) alkoxy R 2 represents F or H Each of R 6 and 4, R 5 R 3, R, represents H or D are independently W represents CH W or represents N or CH V and represents CH, V and represents N Y represents N or CH A represents the CD 2 CD 2 or 2, CH 2 CH 2 CH and O, represents CH 2 S or Z. None [Selection Figure]本発明は、式Iの抗菌性化合物、及びそのような化合物の塩に関する:【化1】式中、R1はアルコキシ(特にメトキシ)を表し;R2はH又はFを表し;R3、R4、R5及びR6のそれぞれは、独立にH又はDを表し;VはCHを表し、かつWはCH又はNを表すか、又は、VはNを表し、かつWはCHを表し;YはCH又はNを表し;ZはO、S又はCH2を表し;そしてAはCH2、CH2CH2又はCD2CD2を表す。【選択図】 なし