The present invention is directed to a compound of Formula (I):
or a form thereof, wherein X
1
, X
2
, X
3
, X
4
, R
1
, R
2
and R
3
are as defined herein, useful as tryptase inhibitors.
The present invention is directed to a compound of Formula (I):
or a form thereof, wherein X
1
, X
2
, X
3
, X
4
, R
1
, R
2
and R
3
are as defined herein, useful as tryptase inhibitors.