Products of formula (I), wherein n is 0 or 1, R.sub.1 is particularly phenyl or biphenyl optionally substituted particularly by benzyloxy, dioxol or halogen, R.sub.2 is particularly hydrogen or methyl substituted particularly by indolyl, phenylthio or phenyl, which may in turn be substituted, and A is carboxy, tetrazolyl or substituted alkyl as well as all salts and isomers thereof, are disclosed. ##STR1##
公式(I)的产物,其中n为0或1,R.sub.1特别是苯基或
联苯基,可选择地被苄氧基、二
噁唑或卤素取代,R.sub.2特别是氢或甲基,可选择地被
吲哚基、苯
硫基或苯基取代,而这些基团本身也可以被取代,A为羧基、
四唑基或取代的烷基以及其所有盐和异构体。