Bacteriostatic cephem compounds and processes for preparing same having the formula: ##STR1## wherein R.sup.1 is amino; R.sup.2 is optionally substituted alkyl, C.sub.3-8 cycloalkyl, lower alkenyl, or lower alkynyl; R.sup.3 is amino and/or alkyl substituted heterocyclic group; and R.sup.4 carboxy.
具有以下式子的抑菌
头孢菌素化合物和制备它们的过程:
##STR1##
其中R.sup.1为
氨基;R.sup.2为可选取代烷基、C.sub.3-8环烷基、低烯基或低炔基;R.sup.3为
氨基和/或烷基取代的杂环基;以及R.sup.4为羧基。