申请人:E. R. Squibb & Sons, Inc.
公开号:US03978050A1
公开(公告)日:1976-08-31
3-Heterothio derivatives of [[(alkoxy)thiocarbonyl]oxy]acetyl cephalosporins having the formula ##EQU1## wherein R is hydrogen, lower alkyl, phenyl-lower alkyl, tri(lower alkyl)stannyl, tri(lower alkyl)silyl, a salt forming ion or the group ##EQU2## R.sub.1 is hydrogen, lower alkyl, phenyl, pyridyl, thienyl or furyl; R.sub.2 is lower alkyl or phenyl-lower alkyl; R.sub.3 is 1-oxopyridinyl or a five membered heterocycle containing only nitrogen and carbon or nitrogen, carbon and oxygen or sulfur in the ring; R.sub.4 is lower alkyl, phenyl or phenyl-lower alkyl; are useful as antibacterial agents.
3-异硫代[(烷氧)硫酰基]氧乙酰头孢菌素的异硫代衍生物具有以下公式##EQU1##其中R为氢、低碳烷基、苯基-低碳烷基、三(低碳烷基)基锡基、三(低碳烷基)基硅基、形成盐的离子或组##EQU2##R.sub.1为氢、低碳烷基、苯基、吡啶基、噻吩基或呋喃基;R.sub.2为低碳烷基或苯基-低碳烷基;R.sub.3为1-氧代吡啶基或仅含氮和碳或氮、碳和氧或硫的五元杂环;R.sub.4为低碳烷基、苯基或苯基-低碳烷基;可用作抗菌剂。