Discovery of a Novel Class of Negative Allosteric Modulator of the Dopamine D2 Receptor Through Fragmentation of a Bitopic Ligand
摘要:
Recently, we have demonstrated that N-((trans)-4-(2-(7-cyano-3,4-dihydroisoquinolin-2(1H)-yl)-ethyl)cyclohexyl)-1H-indole-2-carboxamide (0269652) (1) adopts a bitopic pose at one protomer of a dopamine D-2 receptor (D2R) dimer to negatively modulate the binding of dopamine at the other protomer. The 1H-indole-2-carboxamide moiety of 1 extends into a secondary pocket between the extracellular ends of TM2 and TM7 within the D2R protomer. To target this putative allosteric site, we generated and characterized fragments that include and extend from the 1H-indole-2-carboxamide moiety of 1. N-Isopropyl-1H-indole-2-carboxamide (3) displayed allosteric pharmacology and sensitivity to mutations of the same residues at the top of TM2 as was observed for 1. Using 3 as an "allosteric lead", we designed and synthesized an extensive fragment library to generate novel SAR and identify N-butyl-1H-indole-2-carboxamide (11d), which displayed both increased negative cooperativity and affinity for the D2R. These data illustrate that fragmentation of extended compounds can expose fragments with purely allosteric pharmacology.
Indole-2-carboxamide derivatives useful as beta-2 agonists
申请人:Pfizer Limited
公开号:EP1460064A1
公开(公告)日:2004-09-22
The invention relates to indole derivatives of general formula:
and to processes for the preparation of, intermediates used in the preparation of, compositions containing and the uses of, such derivatives. The indole derivatives according to the present invention are useful in numerous diseases, disorders and conditions. In particular inflammatory, allergic and respiratory diseases, disorders and conditions.
Indole derivatives as histamine 3 receptor inhibitors for the treatment of cognitive and sleep disorders, obesity and other CNS disorders
申请人:Bennani Youssef L.
公开号:US20090036446A1
公开(公告)日:2009-02-05
This invention relates to compounds having pharmacological activity, to compositions containing these compounds, and to a method of treatment employing the compounds and compositions. More particularly, this invention concerns certain indole derivatives and their salts and solvates. These compounds have H
3
histamine receptor antagonist activity. This invention also relates to pharmaceutical compositions containing these compounds and to a method of treating disorders in which histamine H
3
receptor blockade is beneficial.
INDOLE DERIVATIVES AS HISTAMINE 3 RECEPTOR INHIBITORS FOR THE TREATMENT OF COGNITIVE AND SLEEP DISORDERS, OBESITY AND OTHER CNS DISORDERS
申请人:Bennani Youssef L.
公开号:US20110059966A1
公开(公告)日:2011-03-10
This invention relates to compounds having pharmacological activity, to compositions containing these compounds, and to a method of treatment employing the compounds and compositions. More particularly, this invention concerns certain indole derivatives and their salts and solvates. These compounds have H
3
histamine receptor antagonist activity. This invention also relates to pharmaceutical compositions containing these compounds and to a method of treating disorders in which histamine H
3
receptor blockade is beneficial.