Intermediate products usable in particular for preparing corresponding amino derivatives by converting their nitro function, said products being of formula: ##STR1## in which: R.sub.1, R.sub.2 and R.sub.3, which are identical or different, each represent an atom of hydrogen, a halogen, a lower alkyl group or a lower alkoxy group; R.sub.5 and R.sub.6, which are identical or different, each represent an atom of hydrogen, a lower alkyl group, an OH group, a phenyl group or a benzyl group.
中间产物可用于通过将它们的硝基转化为相应的
氨基衍
生物而进行制备,所述产物的
化学式为:##
STR1##其中:R.sub.1、R.sub.2和R.sub.3分别表示
氢原子、卤素、较低的烷基基团或较低的烷
氧基团的原子,这三者可以相同也可以不同;R.sub.5和R.sub.6分别表示
氢原子、较低的烷基基团、羟基、
苯基或
苄基的原子,这两者可以相同也可以不同。