申请人:Hamari Chemicals, Ltd.
公开号:US05055469A1
公开(公告)日:1991-10-08
There are provided quaternary ammonium compounds of the formula: ##STR1## wherein R.sub.1 and R.sub.2, each independently represents a hydrogen atom, a C.sub.1 to C.sub.8 lower alkyl or alkenyl group, or C.sub.3 to C.sub.8 lower cycloalkyl, cycloalkenyl, aralkyl or aryl group; or R.sub.1 and R.sub.2 combine with each other in combination with the adjacent N and carbon atoms or further with at least one of nitrogen, oxygen and sulfur atoms to represent a 3- to 8- membered heterocyclic ring group: R.sub.3, R.sub.4 and R.sub.5, each independently represents a C.sub.1 to C.sub.8 lower alkyl or alkenyl group, C.sub.3 to C.sub.8 lower cycloalkyl, cycloalkenyl, aralkyl or aryl group; or either two of R.sub.3, R.sub.4 and R.sub.5 combine with each other in combination with the adjacent N and carbon atoms or further with at least one of nitrogen, oxygen and sulfur atoms to represent a 3- or 8-membered heterocyclic ring group, with the remaining being the same as defined in the above; or R.sub.3, R.sub.4 and R.sub.5 combine with one another in combination with the adjacent N to represent a nitrogen-containing bicyclo ring or nitrogen-containing aromatic ring group: n is an integer of 1 to 8; and x.sup.- represents an anion being capable of forming a quaternary ammonium group. The compounds are useful in treatment of ulcer in mammals.
提供的四元铵化合物的化学式为:##STR1## 其中R.sub.1和R.sub.2各自独立地表示氢原子、C.sub.1到C.sub.8的低碳基或烯基、或C.sub.3到C.sub.8的低环烷基、环烯基、芳基烷基或芳基;或R.sub.1和R.sub.2与相邻的N和碳原子或进一步与至少一个氮、氧和硫原子结合,以表示3到8个成员的杂环环基:R.sub.3、R.sub.4和R.sub.5各自独立地表示C.sub.1到C.sub.8的低碳基或烯基、C.sub.3到C.sub.8的低环烷基、环烯基、芳基烷基或芳基;或R.sub.3、R.sub.4和R.sub.5中的任意两个与相邻的N和碳原子或进一步与至少一个氮、氧和硫原子结合,以表示3或8个成员的杂环环基,其余的定义与上述相同;或R.sub.3、R.sub.4和R.sub.5与相邻的N结合,以表示含氮的双环环或含氮的芳环基:n为1到8的整数;x.sup.-表示能形成四元铵基的阴离子。该化合物在哺乳动物溃疡的治疗中有用。