[(Thioalkyl)thioacetyl]cephalosporin derivatives of 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 or 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 hydrogen, hydroxy or lower alkanoyloxy; are useful as antimicrobial agents.
[(
硫代)
硫代乙酰基]
头孢菌素衍
生物的
化学式为 ##STR1## 其中 R 为氢,低碳基,苯基-低碳基,三(低碳基)
硅基,盐形成离子或基团 ##STR2## R.sub.1 为氢,低碳基,苯基,
噻吩基或
呋喃基;R.sub.2 和 R.sub.6 分别为氢或低碳基;R.sub.3 和 R.sub.5 分别为低碳基,苯基或苯基-低碳基,而 R.sub.4 为氢,羟基或低碳酰氧基。这些衍
生物是有用的抗微
生物剂。