A Compound represented by the following general formula (1):
wherein R
1a
, R
1b
, R
1c
and R
1d
each independently represent hydrogen, etc.; R
2
represents optionally substituted phenyl, etc.; R
3
represents optionally substituted C6-10 aryl, etc.; and Z
1
and Z
2
each independently represent hydrogen
or salts thereof or hydrates of the foregoing.
A Compound represented by the following general formula (1), salts thereof or hydrates of the foregoing is a novel compound useful for treatment and/or prevention of diseases associated with thrombus formation, and which is safer with suitable physicochemical stability.
[wherein R
1a
, R
1b
, R
1c
and R
1d
each independently represent hydrogen, etc.; R
2
represents optionally substituted phenyl, etc.; R
3
represents optionally substituted C6-10 aryl, etc.; and Z
1
and Z
2
each independently represent hydrogen]