申请人:Old W. David
公开号:US20050032752A1
公开(公告)日:2005-02-10
The present invention provides a compound represented by the general formula I;
wherein A, Ar, X, Z, n, x, y, R and R
3
are as defined in the specification.
本发明提供了一个由通式I表示的化合物;其中A、Ar、X、Z、n、x、y、R和R3如规范中所定义。