The present invention relates to ethynyl derivatives of formula I
wherein
R
1
is phenyl, 3-fluorophenyl, 4-fluorophenyl or 2,5-di-fluorophenyl;
or to a pharmaceutically acceptable acid addition salt, in enantiomerically pure form with the absolute configuration as shown in formula I.
It has now surprisingly been found that the compounds of general formula I are allosteric modulators of the metabotropic glutamate receptor subtype 5 (mGluR5) which show advantageous biochemical-, physicochemical- and pharmacodynamic-properties compared to compounds of prior art.
BARBITURIC ACID DERIVATIVES AS INHIBITORS OF TNF-alpha CONVERTING ENZYME (TACE) AND/OR MATRIX METALLOPROTEINASES
申请人:Duan Jingwu
公开号:US20070167451A1
公开(公告)日:2007-07-19
The present application describes novel barbituric acid derivatives of formula I:
or pharmaceutically acceptable salt or prodrug forms thereof, wherein A, B, L, R
1
, R
2
, R
3
, R
4
, R
5
, n, W, U, X, Y, Z, U
a
, X
a
, Y
a
, and Z
a
are defined in the present specification, which are useful as TNF-α converting enzyme (TACE) and matrix metalloproteinases (MMP) inhibitors.