申请人:Ciba-Geigy Corporation
公开号:US04699939A1
公开(公告)日:1987-10-13
Compounds of formula I ##STR1## wherein R.sub.1, R.sub.2 and A are essentially hydrocarbyl or substituted hydrocarbyl groups with at least one of R.sub.1 and R.sub.2 being cyclohexyl, n is 0, 1 or 2, m is an integer of 1 to 4 and X is oxygen or --N(R.sub.3)-- wherein R.sub.3 is hydrogen, C.sub.1 -C.sub.4 alkyl or phenyl.
式I的化合物,其中R.sub.1、R.sub.2和A基本上是烃基或取代烃基,其中R.sub.1和R.sub.2中至少有一个是环己基,n为0、1或2,m为1到4的整数,X为氧或--N(R.sub.3)--,其中R.sub.3为氢、C.sub.1-C.sub.4烷基或苯基。