Optimization of a Series of Mu Opioid Receptor (MOR) Agonists with High G Protein Signaling Bias
摘要:
While mu opioid receptor (MOR) agonists are especially effective as broad-spectrum pain relievers, it has been exceptionally difficult to achieve a clear separation of analgesia from many problematic side effects. Recently, many groups have sought MOR agonists that induce minimal beta arrestin-mediated signaling because MOR agonist-treated beta arrestin2 knockout mice were found to display enhanced antinociceptive effects with significantly less respiratory depression and tachyphylaxis. Substantial data now exists to support the premise that G protein signaling biased MOR agonists can be effective analgesic agents. We recently showed that, within a chemical series, the degree of bias correlates linearly with the magnitude of the respiratory safety index. Herein we describe the synthesis and optimization of piperidine benzimidazolone MOR agonists that together display a wide range of bias (G/beta arr2). We identify structural features affecting potency and maximizing bias and show that many compounds have desirable properties, such as long half-lives and high brain penetration.
[EN] 1,3,4-OXADIAZOLE DERIVATIVE COMPOUNDS AS HISTONE DEACETYLASE 6 INHIBITOR, AND THE PHARMACEUTICAL COMPOSITION COMPRISING THE SAME<br/>[FR] COMPOSÉS DÉRIVÉS DE 1,3,4-OXADIAZOLE UTILISÉS COMME INHIBITEURS D'HISTONE DÉSACÉTYLASE 6, ET COMPOSITION PHARMACEUTIQUE LES COMPRENANT
申请人:CHONG KUN DANG PHARMACEUTICAL CORP
公开号:WO2020240492A1
公开(公告)日:2020-12-03
The present invention relates to 1,3,4-oxadiazole derivative compounds having a histone deacetylase 6 (HDAC6) inhibitory activity, stereoisomers thereof or pharmaceutically acceptable salts thereof, a use thereof in preparation of a medicament, a pharmaceutical composition comprising the same, a therapeutic method using the composition, and a method for preparing the same, and the 1,3,4-oxadiazole derivative compounds are represented by a following chemical formula (I).
We previously reported a novel series of 1H-pyrazolo[3,4-c]pyridinederivatives and the identification of compound 4b as a highly potent GPR119 agonist. However, the advancement of preclinical evaluations of compound 4b is expected to be difficult because of the compound’s significantly poor aqueous solubility (0.71 μM at pH6.8). In this article, we describe the further optimization of compound 4b
我们先前报道了一系列新型的1 H-吡唑并[3,4- c ]吡啶衍生物,并将化合物4b鉴定为高效GPR119激动剂。但是,由于该化合物的水溶性差(在pH6.8下为0.71μM),因此很难进行化合物4b的临床前评估。在本文中,我们描述了化合物4b的进一步优化,重点是提高其水溶性。优化中央间隔基,左手的芳基和右手的哌啶N-封端基团导致鉴定出强效的GPR119激动剂3 H- [1,2,3]三唑[4,5- c ]]吡啶衍生物32o,具有改善的溶解度(在pH6.8下为15.9μM)。
1,3,4-OXADIAZOLE DERIVATIVE COMPOUNDS AS HISTONE DEACETYLASE 6 INHIBITOR, AND THE PHARMACEUTICAL COMPOSITION COMPRISING THE SAME