申请人:——
公开号:US20040034011A1
公开(公告)日:2004-02-19
Compounds of formula (I′), wherein A, R
1
to R
3
and t are as defined in the disclosure, exhibit COMT enzyme inhibiting activity so that they are useful as COMT inhibitors.
式(I′)的化合物,其中A、R1至R3和t如本公开所定义,具有COMT酶抑制活性,因此它们可用作COMT抑制剂。