A compound of formula (I) or a pharmaceutically acceptable salt or in vivo hydrolysable ester thereof:
wherein R' is hydrogen and R2 is an optionally substituted five- or six-membered heterocyclic group containing one or two nitrogen heteroatoms; or R1 and R2 together with the nitrogen atom to which they are attached form an optionally substituted five- or six-membered heterocyclic group containing one or two nitrogen heteroatoms.
式(I)化合物或其药学上可接受的盐或体内可
水解的酯:
其中 R' 为氢,R2 为任选取代的含一个或两个氮杂原子的五元或六元杂环基团;或 R1 和 R2 与它们所连接的氮原子一起形成任选取代的含一个或两个氮杂原子的五元或六元杂环基团。