This invention relates to novel compounds useful in the treatment of diseases associated with TRPV4 channel receptor. More specifically, this invention relates to certain substituted piperazines, according to Formula I
A compound of formula I
wherein
Z is bond or NH;
R
1
is aryl or optionally substituted heteroaryl;
R
2
is H, optionally substituted C
1-6
alkyl, or optionally substituted C
2-6
alkenyl;
R
3
and R
7
are independently H, optionally substituted C
1-6
alkyl, or aryl;
R
4
is H or optionally substituted C
1-6
alkyl;
R
5
is H or C
1-6
alkyl;
R
6
is H or C
1-6
alkyl; and
X and X′ are independently O or H
2
; or
wherein R
3
and R
4
together form a part of morpholinyl, piperadinyl, or aziridinyl ring;
and pharmaceutically acceptable salts thereof.