3-Heterothio[(thioalkyl)thioacetyl]cephalosporin derivatives which have the formula ##STR1## wherein R is hydrogen, lower alkyl, phenyl-lower alkyl, tri(lower alkyl)silyl, a salt forming ion, or the group ##STR2## R.sub. 1 is hydrogen, lower alkyl, phenyl, thienyl of furyl; R.sub.2 and R.sub.6 each is hydrogen or lower alkyl; R.sub.3 and R.sub.5 each is lower alkyl, phenyl or phenyl-lower alkyl; and R.sub.4 is a five- or six-membered nitrogen and/or sulfur or oxygen-containing ring system; are useful as antibacterial agents.
3-杂
硫代[(
硫代烷基)
硫代乙酰]
头孢菌素衍
生物具有以下结构式 ##
STR1## 其中R为
氢、低烷基、
苯基-低烷基、三(低烷基)
硅基、盐形成离子,或基团 ##
STR2## R.sub. 1为
氢、低烷基、
苯基、
噻吩基或
呋喃基;R.sub.2和R.sub.6各自为
氢或低烷基;R.sub.3和R.sub.5各自为低烷基、
苯基或
苯基-低烷基;R.sub.4为含
氮和/或
硫或
氧的五元或六元环系统;可用作抗菌剂。