申请人:Takeda Chemical Industries, Ltd.
公开号:US04769456A1
公开(公告)日:1988-09-06
The compound of the formula ##STR1## wherein R.sup.1 is hydrogen, methoxy or trifluormethyl, R.sup.2 and R.sup.3 are the same or different and are each hydrogen or methyl, R.sup.4 is a fluorinated lower alkyl having 2 to 5 carbon atoms and 1 to 11 fluorine atoms and X.sup.- is a pharmaceutically acceptable anion, respectively, possesses both strong antisecretory activity and gastric mucosal protective activity, which is produced by reacting a pyridine derivative of the formula ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 have the same meaning as defined above, with an acid.
该化合物的化学式为##STR1##其中R.sup.1为氢、甲氧基或三氟甲基,R.sup.2和R.sup.3相同或不同,均为氢或甲基,R.sup.4为具有2至5个碳原子和1至11个氟原子的氟化较低烷基,X.sup.-为药学上可接受的负离子,分别具有强烈的抗分泌活性和胃黏膜保护活性,其制备方法为将化学式为##STR2##的吡啶衍生物与酸反应。