| abstract |
A pyridine compound represented by general formula (I) or a pharmaceutical acceptable salt thereof, having the antibacterial effect against Helicobacter pylori , antiulcer effect, the effects of protecting gastrointestinal cells and inhibiting the recrudescence and recurrence of ulcer, and so forth, thus being useful as a medicine, wherein R¹ represents hydrogen, halogen, alkyl, alkoxy, etc.; R² and R³ represent each hydrogen, halogen or alkyl; -P=Q- represents -CH=CH-, -N=CH- or -CH=N-; A represents oxygen, sulfur or NR⁴ (wherein R⁴ represents hydrogen, alkyl, etc.); n represents 0, 1 or 2; B represents oxygen, S(O)p (wherein p represents 0, 1 or 2) or NR⁵ (wherein R⁵ represents hydrogen or alkyl); D represents a single bond, alkylene, etc.; and E represents alkoxyalkyl or -NR⁶R⁷. |