[EN] SMALL MOLECULES THAT TARGET THE RNA THAT CAUSES ALS<br/>[FR] PETITES MOLÉCULES CIBLANT L'ARN PROVOQUANT LA SLA
申请人:EXPANSION THERAPEUTICS INC
公开号:WO2022055922A1
公开(公告)日:2022-03-17
Disclosed herein are compounds that selectively bind an expanded transcribed repeat r(G4C2)exp, prevent sequestration of RNA-binding proteins, and inhibit translation of repeat associated non-ATG (RAN) translation responsible for generation of toxic dipeptide repeats underlying diseases such as amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). The compounds and their pharmaceutical compositions are useful in treating a disease or condition characterized by an expanded G4C2 repeat RNA (r(G4C2)exp), such as ALS and FTD.
Synthesis of Chiral 1-[ω-(4-Chlorophenoxy)alkyl]-4-methylpiperidines and Their Biological Evaluation at σ<sub>1</sub>, σ<sub>2</sub>, and Sterol Δ<sub>8</sub>−Δ<sub>7</sub> Isomerase Sites
作者:Francesco Berardi、Fulvio Loiodice、Giuseppe Fracchiolla、Nicola Antonio Colabufo、Roberto Perrone、Vincenzo Tortorella
DOI:10.1021/jm021014d
日期:2003.5.1
Sumitomo's patented sigma ligand 1-[3-(4-chlorophenoxy)propyll-4-methylpiperidine (15), which has been claimed as agent for CNS disorders and neuropathies, and its lower homologue 12 were prepared along with related chiral (4-chlorophenoxy)alkylpiperidines. They were tested at sigma(1), sigma(2), and sterol Delta(8)-Delta(7) isomerase (SI) sites by in vitro radioligand binding assays, to evaluate the influence of a chiral center in the alkyl chain on the selective a, binding relative to other a family sites. Generally high alpha(1)-site affinities were found, so that the chirality introduced by a methyl substitution resulted in slight differences. Nevertheless, the shorter oxyethylenic chain was beneficial to increase a, selectivity. However, the (-)-(S)-4-methyl-1-[2-(4-chlorophenoxy)1-methylethyl]piperidine ((-)-(S)-17) reached the highest sigma(1) affinity (K-i = 0.34 nM) and the best selectivity relative to the sigma(2) site (547-fold). Compound (-)-(S)-17 displayed also a moderate selectivity (11-fold) relative to the SI site.
Synthesis and in vitro sodium channel blocking activity evaluation of novel homochiral mexiletine analogs
作者:Alessia Carocci、Alessia Catalano、Claudio Bruno、Giovanni Lentini、Carlo Franchini、Michela De Bellis、Annamaria De Luca、Diana Conte Camerino
DOI:10.1002/chir.20741
日期:2010.3
New chiral mexiletineanalogs were synthesized in their optically active forms and evaluated in vitro as use‐dependent blockers of skeletal muscle sodiumchannels. Tests carried out on sodium currents of single muscle fibers of Rana esculenta demonstrated that all of them exerted a higher use‐dependent block than mexiletine. The most potent analog, (S)‐3‐(2,6‐dimethylphenoxy)‐1‐phenylpropan‐1‐amine