Compounds of formula: ##STR1## in which R.sub.1 is (a) a phenyl radical or a substituted phenyl radical, (b) a chain --CH(R.sub.8)--COOR.sub.4, (c) a chain --CH.sub.2 --CO--NR.sub.5 R.sub.6 or (d) a phenylalkyl radical, R.sub.2 is a methylene or ethylene radical or a radical --CH(R.sub.7)--, R.sub.3 is a 1- or 2-naphthyl radical, 2- or 3-indolyl or phenylamino radical in which the phenyl ring is optionally substituted on the understanding that, when R.sub.3 is 1- or 2-naphthyl or 2- or 3-indolyl radical, R.sub.7 cannot represent a benzyl, alkylthioalkyl or phenyl radical, as well as, when R.sub.2 is a radical --CH(R.sub.7)--, their racemates and their stereoisomers, and medicinal products containing them.
式为##
STR1##的化合物,其中R.sub.1是(a)
苯基或取代
苯基,(b)链--CH(R.sub.8)--COOR.sub.4,(c)链--CH.sub.2--CO--NR.sub.5 R.sub.6或(d)
苯基烷基基团,R.sub.2是亚
甲基或
乙烯基或基团--CH(R.sub.7)--,R.sub.3是1-或2-
萘基基团,2-或3-
吲哚基或
苯基
氨基基团,其中
苯环可选地取代,当R.sub.3是1-或2-
萘基或2-或3-
吲哚基团时,R.sub.7不能表示
苄基、烷基
硫代烷基或
苯基基团,以及当R.sub.2是基团--CH(R.sub.7)--时,它们的外消旋体和立体异构体,以及含有它们的药物制剂。