EXON SKIPPING OLIGOMER CONJUGATES FOR MUSCULAR DYSTROPY
申请人:Sarepta Therapeutics, Inc.
公开号:US20200190516A1
公开(公告)日:2020-06-18
Antisense oligomers complementary to a selected target site in the human dystrophin gene to induce exon 50 skipping are described. In various aspects, antisense oligomers are described according to Formula (I):
or a pharmaceutically acceptable salt thereof, wherein T, Nu, n, and R
100
are defined herein.
Electrochemically induced oxidative S–O coupling: synthesis of sulfonates from sulfonyl hydrazides and <i>N</i>-hydroxyimides or <i>N</i>-hydroxybenzotriazoles
作者:Alexander O. Terent'ev、Olga M. Mulina、Vadim D. Parshin、Vladimir A. Kokorekin、Gennady I. Nikishin
DOI:10.1039/c8ob03162b
日期:——
oxidation of the starting compounds to form a coupling product. The developed strategy represents a quite atom-efficient approach: one partner loses two nitrogen and three hydrogen atoms, while another one loses only one hydrogen atom. Cyclic voltammetry and the control experiment allowed us to propose possible reaction pathways: generated through anodic oxidation molecular bromine or its higher oxidation
开发了在电流作用下的氧化S-O偶联过程。芳基,杂芳基和烷基磺酰基酰肼和Ñ羟基化合物(Ñ -hydroxyimides和Ñ -hydroxybenzotriazoles)应用于作为起始试剂磺酸盐的制备。该反应在恒定电流条件下在实验方便的配有石墨阳极和不锈钢阴极的不分隔电化学电池中在高电流密度(60 mA cm -2)下进行。NH 4在此过程中,Br充当支撑电解质,并参与起始化合物的氧化,以形成偶联产物。制定的策略代表了一种相当有效的原子效率方法:一个配偶体损失两个氮原子和三个氢原子,而另一个伙伴仅损失一个氢原子。循环伏安法和对照实验使我们能够提出可能的反应途径:通过阳极氧化分子溴或其较高氧化态衍生物产生的氧化途径将起始化合物氧化而形成反应性物种,然后形成S-O键。
Cellular Protection of SNAP-25 against Botulinum Neurotoxin/A: Inhibition of Thioredoxin Reductase through a Suicide Substrate Mechanism
作者:Hajime Seki、Song Xue、Sabine Pellett、Peter Šilhár、Eric A. Johnson、Kim D. Janda
DOI:10.1021/jacs.5b12929
日期:2016.5.4
attempts to ablate BoNT/A intoxication have sought to either nullify cellulartoxin entry or critical biochemical junctions found within its intricate mechanism of action. In these regards, reports have surfaced of nonpeptidic small molecule inhibitors, but few have demonstrated efficacy in neutralizing cellular toxicity, a key prerequisite before rodent lethality studies can be initiated. On the basis
A rapid and efficient P(III)-to-P(V) intramolecular rearrangement of N-[(phosphino)oxy] amines is reported. This intermediate is generated in situ from the reaction of hydroxylamines with chlorophosphites or chlorophosphoramidites and with rearrangement via the cleavage of the weaker N─O bond to generate a more stable P═O bond. The reaction proceeds spontaneously in an excellent yield when the hydroxylamine
The invention relates to materials and methods of conjugating a water soluble polymer to an oxidized carbohydrate moiety of a blood coagulation protein comprising contacting the oxidized carbohydrate moiety with an activated water soluble polymer under conditions that allow conjugation. More specifically, the present invention relates to the aforementioned materials and methods wherein the water soluble polymer contains an active aminooxy group and wherein an oxime linkage is formed between the oxidized carbohydrate moiety and the active aminooxy group on the water soluble polymer. In one embodiment of the invention the conjugation is carried out in the presence of the nucleophilic catalyst aniline. In addition the generated oxime linkage can be stabilized by reduction with NaCNBH
3
to form an alkoxyamine linkage.