Improvements in or relating to thieno and furopyridinium-substituted cephalosporin derivatives
申请人:ELI LILLY AND COMPANY
公开号:EP0074268A2
公开(公告)日:1983-03-16
Cephalosporin derivatives of formula (I):
wherein R Is an acyl group of the formula:
wherein R' is a 5- or 6-membered heterocyclic ring and ⊕R1 is an optionally substituted thieno- or furo-pyridinium system are particularly effective antibacterial agents; or (R is hydrogen) useful intermediates.
Also disclosed is the useful and novel intermediate 2-carboxy-thieno(3,2-c)pyridine".
式(I)的头孢菌素衍生物:其中 R 是式中的酰基:其中 R' 是 5 或 6 元杂环,⊕R1 是任选取代的噻吩或呋喃吡啶体系,是特别有效的抗菌剂;或(R 是氢)有用的中间体。 还公开了有用的新型中间体 2-羧基噻吩(3,2-c)吡啶"。