Methods of using compounds of formula (I):
##STR1##
their racemates, enantiomers, diastereoisomers and inorganic acid salts and
organic acid salts thereof.
Métodos de usar compostos da fórmula (i): ## do ## STR1 seus racemates, enantiomers, diastereoisomers e sais ácidos inorgánicos de sal e orgânico do ácido disso.