| 摘要 |
<p>A compound of formula (I) wherein R1 is amino which may have suitable substituent(s), R?2 and R3¿ are each hydrogen or aliphatic hydrocarbon group which may have suitable substituent(s), A is lower alkylene, and Y is pyridinediyl or furandiyl, and a pharmaceutically acceptable salt thereof. The compound of the present invention possesses antiulcer activity and H¿2?-receptor antagonism, and is useful for a therapeutic treatment of gastritis, ulcer (e.g. gastric ulcer, duodenal ulcer, anastomotic ulcer, etc.), Zollinger-Ellison syndrome, reflux esophagitis, upper gastrointestinal bleeding, and the like.</p> |
