The invention relates to a process for producing new compounds of formula I: ##STR1## and isomers thereof, as well as acid addition salts thereof, in which the symbols have the meanings set forth in the specification.
该发明涉及一种制备新化合物的方法,其
化学式为I:##STR1##及其异构体,以及酸盐,其中符号的含义如规范中所述。