申请人:Kato Tomoki
公开号:US20080255113A1
公开(公告)日:2008-10-16
This invention provides a compound of the formula (I): wherein Het represents a heterocyclic group having one nitrogen atom, to which B binds directly, and from 4 to 7 carbon atoms, and said heterocyclic group being unsubstituted or substituted by 1 to 4 substituents independently selected from the group consisting of substituents α
1
; A represents an alkylene group having from 1 to 4 carbon atoms; B represents a covalent bond or an alkylene group having from 1 to 5 carbon atoms; R
1
represents an isopropyl group, a n-propyl group or a cyclopentyl group; R
2
represents a methyl group, a fluorine atom or a chlorine atom; R
3
independently represents (i) an oxo group, a hydroxy group, an amino group, an alkylamino group or a carboxyl group; (ii) a cycloalkyl group having from 3 to 8 carbon atoms, and said cycloalkyl group being substituted by 1 to 5 substituents, or (iii) a heterocyclic group having from 3 to 8 atoms, and said heterocyclic group being unsubstituted or substituted by 1 to 5 substituents, and n is 1, 2 or 3, or a pharmaceutically acceptable salts thereof. These compounds have 5-HT
4
receptor agonistic activity, and thus are useful for the treatment of gastroesophageal reflux disease, non-ulcer dyspepsia, functional dyspepsia, irritable bowel syndrome or the like in mammalian, especially humans.
本发明提供了式(I)的化合物:其中,Het代表具有一个氮原子的杂环基团,与B直接结合,具有4至7个碳原子,所述杂环基团未被取代或被1至4个取代基独立地选自α1取代基组成的基团取代;A代表具有1至4个碳原子的脂肪族基团;B代表共价键或具有1至5个碳原子的脂肪族基团;R1代表异丙基基团、正丙基基团或环戊基团;R2代表甲基基团、氟原子或氯原子;R3独立地代表(i)氧代基、羟基、氨基、烷基氨基或羧基;(ii)具有3至8个碳原子的环烷基团,所述环烷基团被1至5个取代基取代;或(iii)具有3至8个原子的杂环基团,所述杂环基团未被取代或被1至5个取代基独立地选自α1取代基组成的基团取代,n为1、2或3,或其药学上可接受的盐。这些化合物具有5-HT4受体激动活性,因此对于哺乳动物,特别是人类的治疗胃食管反流病、非溃疡性消化不良、功能性消化不良、肠易激综合征等非常有用。