申请人:Evans David M.
公开号:US20080255126A1
公开(公告)日:2008-10-16
Novel compounds that are inhibitors of one or most post-proline cleaving proteases, e.g. dipeptidyl peptidase IV, according to general formula (1). R
1
is H or CN, X
1
is O, S, CH
2
, CHF, CF
2
, CH(CH
3
), C(CH
3
)
2
or CH(CN), and b is 1 or 2. G
1
is H or a group according to the formula —CH
2
—X
2
—(CH
2
)
a
-G
3
and G
2
is H or a group according to the formula —CH
2
—(CH
2
9
a
-G
3
, provided that one of G
1
and G
2
is H and the other is not H. X
2
is O, S, or CH
2
, and a is 0, 1 or 2, provided that when a is 1 then X
2
is CH
2
. G
3
is a group according to one of general formulae 2-4, where the variables have meaning given in the description. The compounds are useful in the treatment of i.a. type 2 diabetes and impaired glucose tolerance.