A cyanofluoropyrrolidine compound of Formula (I) or a pharmaceutically acceptable salt thereof or a hydrate thereof, which is useful as an agent for preventing or treating diseases or conditions capable of being improved by inhibition of dipeptidyl peptidase IV (DPPIV), diabetes mellitus, immune diseases and the like:
[wherein A represents a hydrogen atom or a fluorine atom,
R
1
and R
2
are as defined in the specification,
X represents a single bond or a C
13
alkylene group, and
R
3
represents a group represented by the formula: —N(R
4
)COR
5
, —N(R
4
)SO
2
R
5
, —NR
4
R
6
, —SO
2
R
5
, —SO
2
NR
4
R
5
, —OCONR
4
R
5
, —CH═CH—R
7
or —C≡C—R
7
, or represents a heteroaryl group selected from a heteroaryl group which contains at least one oxygen and/or sulfur atom and which may further contain a nitrogen atom, and a 6-membered nitrogen-containing aromatic ring or a 9- to 11-membered condensed ring thereof (wherein the heteroaryl group may be substituted with one or more substituents selected from the substituent Y
3
group)].
一种
氰基
氟吡咯烷化合物,
化学式为(I),或其药学上可接受的盐或
水合物,能够作为一种抑制
二肽基肽酶IV(
DPPIV)并预防或治疗疾病或症状的药物,例如糖尿病,免疫性疾病等。其中A代表
氢原子或
氟原子,R1和R2如规范中所定义,X代表单键或C13烷基,R3代表由以下公式表示的基团:—N(R4)COR5,—N(R4)SO2R5,—NR4R6,—SO2R5,—SO2NR4R5,—OCONR4R5,—CH═CH—R7或—C≡C—R7,或表示从含有至少一个
氧和/或
硫原子的杂环芳基中选择的杂环芳基,该杂环芳基还可以包含一个
氮原子以及一个6元
氮含杂环芳基或9-11元的缩合环(其中杂环芳基可以用来代替一个或多个取代基Y3)。