Synthesis, In Vitro and In Vivo Evaluation, and Radiolabeling of Aryl Anandamide Analogues as Candidate Radioligands for In Vivo Imaging of Fatty Acid Amide Hydrolase in the Brain
摘要:
Fatty acid amide hydrolyase (FAAH) is one of the main enzymes responsible for terminating the signaling of endocannabinoids in the brain. Imaging FAAH in vivo using PET or SPECT is important to deeper understanding of its role in neuropsychiatric disorders. However, at present, no radioligand is available for mapping the enzyme in vivo. Here, we synthesized 18 aryl analogues of anandamide, FAAH's endogenous substrate, and in vitro evaluated their potential as metabolic trapping tracers. Interaction studies with recombinant FAAH revealed good to very good interaction of the methoxy substituted aryl anandamide analogues 17, 18, 19, and 20 with FAAH and they were identified as competing substrates, Compounds 17 and 18 did not display significant binding to CB1 and CB2 cannabinoid receptors and stand out as potential candidate metabolic trapping tracers. They were successfully labeled with C-11 in good yields and high radiochemical purity and displayed brain uptake in C57BL/6J mice. Radioligands [C-11]-17 and [C-11]-18 merit further investigation in vivo.
Synthesis, In Vitro and In Vivo Evaluation, and Radiolabeling of Aryl Anandamide Analogues as Candidate Radioligands for In Vivo Imaging of Fatty Acid Amide Hydrolase in the Brain
摘要:
Fatty acid amide hydrolyase (FAAH) is one of the main enzymes responsible for terminating the signaling of endocannabinoids in the brain. Imaging FAAH in vivo using PET or SPECT is important to deeper understanding of its role in neuropsychiatric disorders. However, at present, no radioligand is available for mapping the enzyme in vivo. Here, we synthesized 18 aryl analogues of anandamide, FAAH's endogenous substrate, and in vitro evaluated their potential as metabolic trapping tracers. Interaction studies with recombinant FAAH revealed good to very good interaction of the methoxy substituted aryl anandamide analogues 17, 18, 19, and 20 with FAAH and they were identified as competing substrates, Compounds 17 and 18 did not display significant binding to CB1 and CB2 cannabinoid receptors and stand out as potential candidate metabolic trapping tracers. They were successfully labeled with C-11 in good yields and high radiochemical purity and displayed brain uptake in C57BL/6J mice. Radioligands [C-11]-17 and [C-11]-18 merit further investigation in vivo.
structures. Herein, we report a generally applicable method for synthesis of natural-product-like cyclophane-braced peptide macrocycles via Pd-catalyzed intramolecular C(sp3)-H arylation with aryl iodides at the remote γ position of various N-terminal aliphatic aminoacid units using a simple picolinamide directing group. Products of high structural and stereochemical complexity were quickly assembled
环肽为探索小分子和生物制剂之间的生物相关化学空间提供了最重要的平台之一。然而,与小分子的设计和合成相比,化学家对环肽三维结构和性质的微调能力远远落后。对环烷肽天然产物很感兴趣,我们想知道刚性、平面和疏水性环烷基序是否可以为合成具有良好 3D 结构的环肽提供新的设计元素。在此处,我们报告了一种普遍适用的合成天然产物样环芳支撑的肽大环化合物的方法,通过 Pd 催化的分子内 C(sp3)-H 芳基化,在各种 N 端脂肪族氨基酸单元的远程 γ 位置使用芳基碘进行芳基化,使用简单的吡啶酰胺导向基团。通过标准固相肽合成制备的易于获得的肽前体快速组装具有高度结构和立体化学复杂性的产品。许多这些肽大环化合物显示出高度有序的结构,正如 X 射线晶体学所揭示的那样。值得注意的是,带有各种游离极性侧链的未受保护肽底物的 PA 导向 C(sp3)-H 环化反应在水性介质中以高效率和选择性进行。
Small molecule and macrocyclic pyrazole derived inhibitors of myeloperoxidase (MPO)
作者:Carol H. Hu、Meriah W. Neissel Valente、O. Scott Halpern、Sutjano Jusuf、Javed A. Khan、Gregory A. Locke、Gerald J. Duke、Xiaoqin Liu、Franck J. Duclos、Ruth R. Wexler、Ellen K. Kick、Joanne M. Smallheer
DOI:10.1016/j.bmcl.2021.128010
日期:2021.6
antimicrobial host-defense, has been implicated in chronic inflammatory diseases such as coronary artery disease. The design and evaluation of MPO inhibitors for the treatment of cardiovascular disease are reported herein. Starting with the MPO and triazolopyridine 3 crystal structure, novel inhibitors were designed incorporating a substituted pyrazole, which allowed for substituents to interact with hydrophobic
[EN] AGONISTS OF FOLLICLE STIMULATING HORMONE ACTIVITY<br/>[FR] AGONISTE D'ACTIVITE HORMONALE STIMULANT UN FOLLICULE
申请人:AFFYMAX RES INST
公开号:WO2002009706A1
公开(公告)日:2002-02-07
In one aspect, the present invention provides novel compounds. In addition, the invention provides a FSH receptor agonist, wherein the agonist binds to a FSH receptor having a FSH binding site and, wherein the agonist is noncompetitve with FSH for the FSH binding site. In another aspect, the invention provides methods of using the compounds of the present invention for diverse pharmaceutical applications including, for example, CNS antiischemic agents, agents with antipsychotic or other psychoactive properties, antimicrobial agents and mammalian fertility regulating agent.
Heteroaryl substituted pyrrolo[2,3-b]pyridines and pyrrolo[2,3-b]pyrimidines as Janus kinase inhibitors
申请人:Incyte Corporation
公开号:EP2343298A1
公开(公告)日:2011-07-13
The present invention provides heteroaryl substituted pyrrolo[2,3-b]pyridines (I) and heteroaryl substituted pyrrolo[2,3-b]pyrimidines that modulate the activity of Janus kinases and are useful in the treatment of diseases related to activity of Janus kinases including, for example, immune-related diseases, skin disorders, myeloid proliferative disorders, cancer, and other diseases.
[EN] CYCLIC PEPTIDE COMPOUND SIMULATING NATURAL PRODUCT STRUCTURE, AND METHOD FOR PREPARATION THEREOF<br/>[FR] COMPOSÉ PEPTIDIQUE CYCLIQUE SIMULANT UNE STRUCTURE DE PRODUIT NATUREL, ET SON PROCÉDÉ DE PRÉPARATION<br/>[ZH] 一种模拟天然产物结构的环肽化合物及其制备方法