A compound of the formula
##STR1##
or the pharmaceutically acceptable salt thereof; wherein R.sup.1, R.sup.2,
R.sup.3 and R.sup.4 are as defined above useful to treat inflammation and
other immune disorders.
Um composto do ## do ## STR1 da fórmula ou do sal pharmaceutically aceitável disso; wherein R.sup.1, R.sup.2, R.sup.3 e R.sup.4 são como definidos acima de útil tratar o inflammation e outros disorders imunes.
