申请人:Meiji Seika Kabushiki Kaisha
公开号:US05190952A1
公开(公告)日:1993-03-02
A 4-acyloxyquinoline derivative represented by the general formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom, a C.sub.1 -C.sub.18 alkyl, C.sub.2 -C.sub.18 alkenyl, C.sub.3 -C.sub.10 cycloalkyl which may be optionally substituted, phenylloweralkyl, phenoxyloweralkyl, aryl group, a group OR.sup.4, where R.sup.4 represents a lower alkyl or aryl group, or a group ##STR2## where X represents an oxygen or a sulphur atom; R.sup.2 represents a hydrogen atom, a lower alkyl alkyl group or a group --COOR.sup.5 where R.sup.5 represents a hydrogen atom or a lower alkyl group; R.sup.3 represents a hydrogen atom, a C.sub.1 -C.sub.10 alkyl or C.sub.2 -C.sub.10 alkenyl group, provided that R.sup.1 does not represent OR.sup.4 when R.sup.2 is a hydrogen atom and R.sup.3 is methyl; R.sup.2 and R.sup.3 together represent a group (CH.sub.2).sub.m, wherein m is 3 or 4, and W represents a hydrogen atom, 1 to 4 halogen atoms, a lower alkyl or lower alkoxy group which may be the same or different and with which the left-hand nucleus is substituted, provided that the compound wherein R.sup.1 represents methyl, R.sup.2, R.sup.3 and W each represent a hydrogen atom is excluded.
一种由通式(I)表示的4-酰氧基喹啉衍生物:##STR1## 其中R.sup.1表示氢原子,C.sub.1-C.sub.18烷基,C.sub.2-C.sub.18烯基,C.sub.3-C.sub.10环烷基(可以选择性地取代),苯基较低烷基,苯氧基较低烷基,芳基,羟基较低烷氧基,或羟基较低烷氧基,其中R.sup.4表示较低烷基或芳基,或羧基(其中X表示氧或硫原子); R.sup.2表示氢原子,较低烷基或羧基--COOR.sup.5,其中R.sup.5表示氢原子或较低烷基; R.sup.3表示氢原子,C.sub.1-C.sub.10烷基或C.sub.2-C.sub.10烯基,前提是当R.sup.2为氢原子且R.sup.3为甲基时,R.sup.1不表示OR.sup.4; R.sup.2和R.sup.3一起表示(CH.sub.2).sub.m,其中m为3或4,W表示氢原子,1到4个卤素原子,可以相同或不同的较低烷基或较低烷氧基,用于左侧核取代,其中排除当R.sup.1表示甲基,R.sup.2,R.sup.3和W各表示氢原子的化合物。