申请人:Daicel Chemical Industries Ltd.
公开号:US04946497A1
公开(公告)日:1990-08-07
A compound of the formula (I) ##STR1## or a salt thereof, wherein R is hydrogen atom, or a group of --(CH.sub.2).sub.n --R.sub.1 wherein n is an integer from 1 to 3 and R.sub.1 is hydrogen atom, hydroxy group, a lower alkoxy group, mercapto group, a lower alkylthio group, amino group, a di-lower alkylamino group, a C.sub.3-11 alkyl group, a lower alkenyl group, a lower alkynyl group, a cycloalkyl group, a 5- or 6-membered heterocyclic group, or a phenyl group which may be substituted by one or two substituents of a halogen, a lower alkyl or a lower alkoxy; R.sub.2 and R.sub.7 are the same, a C.sub.1-11 alkyl group, a lower alkenyl group, a lower alkynyl group, a cycloalkyl group, a lower alkoxyalkyl group, an aralkyl group whose nucleus may be substituted by one or two substituents of a halogen, a lower alkyl or a lower alkoxy, or a halalkyl group; R.sub.3, R.sub.4 and R.sub.5 are, the same or different, hydrogen atom, a halogen atom, cyano group, nitro group, amino group, a lower alkyl group, a lower haloalkyl group, hydroxy group, a lower alkoxy group, an aryloxy group, carboxy group or a lower alkoxycarbonyl group; R.sub.6 is hydrogen atom, a halogen atom, a lower alkyl group, a phenyl group which may be substituted or an aralkyl group which may be substituted; and in the case of R.sub.2 and R.sub.7 being methyl group, R.sub.6 is a lower alkyl group, a phenyl group which may be substituted or an aralkyl group which may be substituted, which is useful as a plant growth inhibitor.
化合物的分子式为(I)##STR1##或其盐,其中R是氢原子,或者是--(CH.sub.2).sub.n--R.sub.1的基团,其中n是1到3之间的整数,R.sub.1是氢原子,羟基,较低的烷氧基,巯基,较低的烷基硫基,氨基,二个较低的烷基氨基,C.sub.3-11烷基,较低的烯基,较低的炔基,环烷基,5-或6-成员的杂环基,或者是苯基,它可以被卤素,较低的烷基或较低的烷氧基的一个或两个取代基取代;R.sub.2和R.sub.7相同,是C.sub.1-11烷基,较低的烯基,较低的炔基,环烷基,较低的烷氧基烷基,其核可以被卤素,较低的烷基或较低的烷氧取代的芳基,或卤代烷基;R.sub.3,R.sub.4和R.sub.5相同或不同,是氢原子,卤素原子,氰基,硝基,氨基,较低的烷基,较低的卤代烷基,羟基,较低的烷氧基,芳氧基,羧基或较低的烷氧羰基;R.sub.6是氢原子,卤素原子,较低的烷基,可以被取代的苯基或可以被取代的芳基;如果R.sub.2和R.sub.7是甲基基团,则R.sub.6是较低的烷基,可以被取代的苯基或可以被取代的芳基,其作为一种植物生长抑制剂。