Amides of diazabicycloalkanes selective for nicotinic acetylcholine receptor sub-types
申请人:Targacept, Inc.
公开号:EP2284171A1
公开(公告)日:2011-02-16
Compounds, pharmaceutical compositions including the compounds, and methods of preparation and use thereof are disclosed. The compounds are amide compounds which can be prepared from certain heteroraryl carboxylic acids and certain diazabicycloalkanes. The compounds exhibit selectivity for, and bind with high affinity to, neuronal nicotinic receptors of the a4ss2 subtype in the central nervous system (CNS). The compounds and compositions can be used to treat and/or prevent a wide variety of conditions or disorders, particularly CNS disorders. The compounds can: (i) alter the number of nicotinic cholinergic receptors of the brain of the patient, (ii) exhibit neuroprotective effects, and (iii) when employed in effective amounts, not result in appreciable adverse side effects (e.g. side effects such as significant increases in blood pressure and heart rate, significant negative effects upon the gastrointestinal tract, and significant effects upon skeletal muscle).
Formula I:
wherein n has the value of 0 or 1, and
Cy is a heteroaryl group chosen from the group of 2-furanyl, 3-furanyl, 2-oxazolyl, 4-oxazolyl, 5-oxazolyl, 3-isoxazolyl, 4-isoxazolyl, 5-isoxazolyl, 1,3,4-oxadiazol-2-yl, 1,2,4-oxadiazol-3-yl, 1,2,4-oxadiazol-5-yl, 2-thiazolyl, 4-thiazolyl, 5-thiazolyl, 3-isothiazolyl, 4-isothiazolyl, 5-isothiazolyl, 1,3,4-thiadiazol-2-yl, 1,2,4-thiadiazol-3-yl, 1,2,4-thiadiazol-5-yl and 4-pyridinyl.
本发明公开了化合物、包括化合物的药物组合物及其制备和使用方法。这些化合物是酰胺类化合物,可由某些杂芳基羧酸和某些二氮杂双环烷烃制备。这些化合物对中枢神经系统(CNS)中的 a4ss2 亚型神经元烟碱受体具有选择性,并能与之高亲和力地结合。这些化合物和组合物可用于治疗和/或预防多种疾病,尤其是中枢神经系统疾病。这些化合物可以(i) 改变患者大脑中烟碱胆碱能受体的数量;(ii) 表现出神经保护作用;(iii) 以有效量使用时,不会产生明显的不良副作用(例如,血压和心率明显升高、对胃肠道产生明显负面影响以及对骨骼肌产生明显影响等副作用)。
式 I:
其中 n 的值为 0 或 1,且
1,2,4-恶二唑-5-基、2-噻唑基、4-噻唑基、5-噻唑基、3-异噻唑基、4-异噻唑基、5-异噻唑基、1,3,4-噻二唑-2-基、1,2,4-噻二唑-3-基、1,2,4-噻二唑-5-基和 4-吡啶基。