Substituent variation in azabicyclic triazole- and tetrazole-based muscarinic receptor ligands
摘要:
The effect of variation of the 1-azabicyclic substituent on the novel 1,2,3-triazol-4-yl-, 1,2,4-triazol-1-yl-, tetrazol-5-yl-, and tetrazol-2-yl-based muscarinic receptor ligands ha, been studied, and the exo-azabicyclic[2.2.1]hept-3-yl substituent was found to give the most potent and efficacious compounds. In addition, variation of the second substituent on 1,2,4-triazol-1-yl- and tetrazol-2-yl-based muscarinic receptor ligands has yielded a series of novel compounds with high potencies and efficacies, ranging from full agonists to antagonists. Small lipophilic electron withdrawing substituents give potent but low efficacy compounds, while small polar electron donating substituents give potent and efficacious compounds. The activity of these compounds is described in terms of a model of the receptor involving lipophilic and hydrogen bonding interactions. These compounds provide muscarinic ligands with high potency and a range of efficacies suitable for testing as candidate drugs in the treatment of Alzheimer's disease.
Substituent variation in azabicyclic triazole- and tetrazole-based muscarinic receptor ligands
摘要:
The effect of variation of the 1-azabicyclic substituent on the novel 1,2,3-triazol-4-yl-, 1,2,4-triazol-1-yl-, tetrazol-5-yl-, and tetrazol-2-yl-based muscarinic receptor ligands ha, been studied, and the exo-azabicyclic[2.2.1]hept-3-yl substituent was found to give the most potent and efficacious compounds. In addition, variation of the second substituent on 1,2,4-triazol-1-yl- and tetrazol-2-yl-based muscarinic receptor ligands has yielded a series of novel compounds with high potencies and efficacies, ranging from full agonists to antagonists. Small lipophilic electron withdrawing substituents give potent but low efficacy compounds, while small polar electron donating substituents give potent and efficacious compounds. The activity of these compounds is described in terms of a model of the receptor involving lipophilic and hydrogen bonding interactions. These compounds provide muscarinic ligands with high potency and a range of efficacies suitable for testing as candidate drugs in the treatment of Alzheimer's disease.
A compound of formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## in which X represents R.sub.1 OOC-- in which R.sub.1 is C.sub.1-4 alkyl, C.sub.2-4 alkenyl or C.sub.2-4 alkynyl; R.sub.2 O-- in which R.sub.2 is C.sub.1-2 alkyl, C.sub.1-2 alkylcarbonyl or aminocarbonyl optionally substituted by one or two methyl groups; a group ##STR2## in which Y represents a 3-membered divalent residue completing a 5-membered aromatic ring and comprises one or two heteroatoms selected from oxygen, nitrogen and sulphur, any amino nitrogen optionally substituted by a C.sub.1-2 alkyl group, Y being optionally C-substituted by a methyl group; or a group ##STR3## in which A.sub.1 is oxygen or sulphur, one of A.sub.2 and A.sub.3 is CR.sub.3 and the other is nitrogen or CR.sub.4 where R.sub.3 and R.sub.4 are independently selected from hydrogen and methyl; and each of p and q independently represents an integer of 2 to 4.
4-SUBSTITUTED QUINUCLIDINE DERIVATIVES, METHODS OF PRODUCTION, AND PHARMACEUTICAL USES THEREOF
申请人:Pfister Jurg R.
公开号:US20090088418A1
公开(公告)日:2009-04-02
The present invention relates to compounds and formulations capable of affecting nicotinic acetylcholine receptors (nAChRs), for example, as modulators of specific nicotinic receptor subtypes (specifically, the alpha7 nAChR subtype). The present invention also relates to methods for treating a wide variety of conditions and disorders, particularly those associated with dysfunction of the central and autonomic nervous systems.
2′ Biaryl amides as novel and subtype selective M1 agonists. Part I: Identification, synthesis, and initial SAR
作者:Brian Budzik、Vincenzo Garzya、Dongchuan Shi、James J. Foley、Ralph A. Rivero、Christopher J. Langmead、Jeannette Watson、Zining Wu、Ian T. Forbes、Jian Jin
DOI:10.1016/j.bmcl.2010.04.128
日期:2010.6
Biaryl amides were discovered as novel and subtype selective M1 muscarinic acetylcholine receptor agonists. The identification, synthesis, and initial structure–activity relationships that led to compounds 3j and 4c, possessing good M1 agonist potency and intrinsic activity, and subtype selectivity for M1 over M2–5, are described.
Azabicyclic compounds, process for their preparation and pharmaceutical compositions containing them
申请人:Beecham Group p.l.c.
公开号:EP0402056A2
公开(公告)日:1990-12-12
A compound of formula (I) or a pharmaceutically acceptable salt thereof:
in which one of X and Y represents hydrogen and the other represents Z, where Z is a group
in which Q represents a 3-membered divalent residue completing a 5-membered aromatic ring and comprises two or three nitrogen atoms, any amino nitrogen being substituted by a C1-2 alkyl, cyclopropyl or propargyl group, r represents an integer of 2 or 3, s represents an integer of 1 or 2 and t represents 0 or 1, with the proviso that when Y is hydrogen s is 1.
式 (I) 的化合物或其药学上可接受的盐:
其中 X 和 Y 的一个代表氢,另一个代表 Z,其中 Z 是一个基团
其中 Q 代表完成五元芳香环的三元二价残基,包含两个或三个氮原子,任何氨基氮均被 C1-2 烷基、环丙基或丙炔基取代,r 代表 2 或 3 的整数,s 代表 1 或 2 的整数,t 代表 0 或 1,但当 Y 为氢时,s 为 1。