Synthesis and Pharmacological Evaluation of Novel γ-Aminobutyric Acid Type B (GABAB) Receptor Agonists as Gastroesophageal Reflux Inhibitors
摘要:
We have previously demonstrated that the prototypical GABA(B) receptor agonist baclofen inhibits transient lower esophageal sphincter relaxations (TLESRs), the most important mechanism for gastroesophageal reflux. Thus, GABAB agonists could be exploited for the treatment of gastroesophageal reflux disease. However, baclofen, which is used as an antispastic agent, and other previously known GABAB agonists can produce CNS side effects such as sedation, dizziness, nausea, and vomiting at higher doses. We now report the discovery of atypical GABAB agonists devoid of classical GABAB agonist related CNS side effects at therapeutic doses and the optimization of this type of compound for inhibition of TLESRs, which has resulted in a candidate drug (R)-7 (AZD3355) that is presently being evaluated in man.
The present invention relates to new substituted imidazole compounds and pharmaceutically acceptable salts, esters or prodrugs thereof, compositions of the derivatives together with pharmaceutically acceptable carriers, and uses of the compounds. The compounds of the invention have the following general formula:
Novel compounds of formula I, with the exception of i) the racemate of (3-amino-2-hydroxypropyl)phosphinic acid; and ii) (2R/S, 3R)-(3-amino-2-hydroxybutyl)phosphinic acid,
having affinity to one or more GABA
B
receptors, their pharmaceutically acceptable salts, solvates and stereoisomers, as well as processes for their preparation, pharmaceutical compositions containing said therapeutically active compounds and the use of said active compounds in therapy.
Novel compounds of formula I, with the exception of
i) the racemate of (3-amino-2-hydroxypropyl)phosphinic acid; and
ii) (2R/S, 3R)-(3-amino-2-hydroxybutyl)phosphinic acid,
having affinity to one or more GABAB receptors, their pharmaceutically acceptable salts, solvates and stereoisomers, as well as processes for their preparation, pharmaceutical compositions containing said therapeutically active compounds and the use of said active compounds in therapy
SUBSTITUTED PYRAZOLE AND TRIAZOLE COMPOUNDS AS KSP INHIBITORS
申请人:Xia Yi
公开号:US20080200462A1
公开(公告)日:2008-08-21
Disclosed are new substituted pyrazole and triazole compounds of Formula (I) and pharmaceutically acceptable salts, esters or prodrugs thereof, compositions of the derivatives together with pharmaceutically acceptable carriers, and uses thereof:
Novel compounds of formula I, with the exception of
i) the racemate of (3-amino-2-hydroxypropyl)methylphosphinic acid;
ii) (S)-(3-amino-2-hydroxypropyl)methylphosphinic acid;
iii) (R)-(3-amino-2-hydroxypropyl)methylphosphinic acid;
iv) (3-amino-2-hydroxypropyl)difluoromethylphosphinic acid; and
v) (3-amino-2-oxopropyl)methylphosphinic acid,
having affinity to one or more GABAB receptors, their pharmaceutically acceptable salts, solvates and stereoisomers, as well as a process for their preparation, pharmaceutical compositions containing said therapeutically active compounds and the use of said active compounds in therapy.