申请人:GLAXO GROUP LTD
公开号:WO2001017994A1
公开(公告)日:2001-03-15
A method is disclosed for rational design of a PPAR, FXR, LXR-alpha, or LXR-beta antagonist comprising chemical modification of a PPAR, FXR, LXR-alpha, or LXR-beta agonist to: a) prevent formation of a hydrogen bond between the agonist and tyrosine or histidine, or tryptophan involved in receptor activation; and/or b) displace the tyrosine or histidine, or tryptophan involved in receptor activation from its agonist bound position. Preferably, little or no additional changes are made in the structure of the agonist so that the resulting antagonist is a close structural analogue of the agonist. Specific examples of PPAR gamma antagonists designed and prepared using the method of this invention are compounds of Formula (I) or (II), or pharmaceutically acceptable salts or solvates thereof, where in Formula (I) X is O, S, or NH; and R is methyl, ethyl, n-propyl, i-propyl, cyclopropyl, n-butyl, phenyl, or -CH2OCH3, and where in Formula (II) X is C or N; and R is methyl, ethyl, n-propyl, i-propyl, -CH2OCH3, or -CO2CH3.
本发明揭示了一种合理设计PPAR、FXR、LXR-alpha或LXR-beta拮抗剂的方法,包括对PPAR、FXR、LXR-alpha或LXR-beta激动剂进行化学修饰,以:a)防止激动剂与参与受体激活的酪氨酸或组氨酸或色氨酸之间形成氢键;和/或b)将与受体激活有关的酪氨酸或组氨酸或色氨酸从其激动剂结合的位置上移开。最好不对激动剂的结构进行额外的改变,以便得到的拮抗剂是激动剂的近似结构类似物。使用本发明方法设计和制备的PPAR gamma拮抗剂的具体示例是公式(I)或(II)化合物,或其药学上可接受的盐或溶剂,其中在公式(I)中,X为O、S或NH;R为甲基、乙基、正丙基、异丙基、环丙基、正丁基、苯基或-CH2OCH3;在公式(II)中,X为C或N;R为甲基、乙基、正丙基、异丙基、-CH2OCH3或-CO2CH3。