Ornithine derivatives of the formula (I): wherein X is —CO— or —(CH
2
)
k
— (wherein k is 1, 2 or 3); Y is Z-(CH
2
)
n
—, and the like; wherein Z is R
1
—CO—NR
4
—, and the like, (wherein R
1
is aryl, and the like; and R
4
is hydrogen, or lower alkyl); and n is 1, 2, 3, 4, 5 or 6}; R
2
is aryl-(lower alkyl), and the like; R
3
is -Q-R
7
, [wherein Q is —CO— or —SO
2
—, R is heterocyclyl], and the like; and R
5
and R
6
are independently hydrogen or lower alkyl; or a pharmaceutically acceptable salt thereof, which are useful as medicament.
公式(I)的
鸟氨酸衍
生物:其中X为—CO—或—(
CH2)k—(其中k为1、2或3);Y为Z-( )n—等;其中Z为R1—CO—NR4—等(其中R1为芳基等;R4为
氢或低
碳基);n为1、2、3、4、5或6};R2为芳基-(低
碳基)等;R3为-Q-R7,[其中Q为—CO—或—SO2—,R为杂环基]等;R5和R6独立地为
氢或低
碳基;或其药学上可接受的盐,其作为药物有用。