Utilization of lithium triethylborohydride as a selective N-acyl deprotecting agent
摘要:
Lithium triethylborohydride has been found to be a superior and selective reagent for the removal of tertiary N-acyl protecting groups. The reagent selectively removes tertiary amide acyl functionality without affecting secondary amide functionality even when they are present in the same molecule. Some tertiary carbamates may be also removed under the same conditions. (C) 2002 Published by Elsevier Science Ltd.
[EN] DELIVERY OF TARGET SPECIFIC NUCLEASES<br/>[FR] ADMINISTRATION DE NUCLÉASES SPÉCIFIQUES À UNE CIBLE
申请人:SANGAMO THERAPEUTICS INC
公开号:WO2018107026A1
公开(公告)日:2018-06-14
Described herein are lipid nanoparticles comprising cationic lipids and other lipids and also comprising engineered nucleases facilitate transfer of nucleic acids to cells.
本发明描述了包含阳离子脂质和其他脂质的脂质纳米颗粒,以及包含工程核酸酶以促进核酸向细胞的转移。
Environmentally benign decarboxylative <i>N</i>-, <i>O</i>-, and <i>S</i>-acetylations and acylations
作者:Santanu Ghosh、Anisha Purkait、Chandan K. Jana
DOI:10.1039/d0gc03731a
日期:——
An operationally simple and general method for acetylation and acylation of a wide variety of substrates (amines, alcohols, phenols, thiols, and hydrazones) has been reported. Meldrum's acid and its derivatives have been used as an air-stable, non-volatile, cost-effective, and easy to handle acetylating/acylating agent. Easily separable byproducts (CO2 and acetone) allowed the isolation of analytically
Using dialkyl amide <i>via</i> forming hydrophobic deep eutectic solvents to separate citric acid from fermentation broth
作者:Lijuan Liu、Qifeng Wei、Yong Zhou、Xiulian Ren
DOI:10.1039/c9gc04401a
日期:——
traditional calcium salt method which produces a large amount of waste gypsum residue, a new way of separating citric acid from fermentation broth was developed by forming hydrophobic deep eutectic solvents (DESs), in which amide and citric acid were used as the hydrogen bond acceptor and donor respectively when amide was in contact with the fermentation broth containing citric acid. Among these amides
如今,开发适当的技术是社会减少环境影响的最大挑战之一。在这项研究中,为避免传统的钙盐方法产生大量的石膏废渣,通过形成疏水性深共熔溶剂(DESs)(其中酰胺和柠檬酸为二氯乙烷),开发了一种从发酵液中分离柠檬酸的新方法。当酰胺与含柠檬酸的发酵液接触时,分别用作氢键受体和供体。在这些酰胺中,C 10 H 21根据分子大小和形状,发现NO是与柠檬酸形成疏水性DES的有效氢键受体,其最大疏水平衡常数为3.14。通过使用FT-IR和量子化学(QC)计算分析化学键,研究了疏水性DES的形成机理。通过升高疏水性DES的温度来再生C 10 H 21 NO。再生的C 10 H 21 NO表现出良好的再循环特性,而形成疏水性DES的能力没有明显降低。这种获得高质量柠檬酸的有效方法为分离其他羧酸提供了新思路。
Homogeneous transition-metal catalysis. Cleavage of the CN bond of tertiary amines by acid anhydrides in the presence of transition metal ions
作者:Bui The Khai、Antonio Arcelli
DOI:10.1016/0022-328x(83)80066-7
日期:1983.8
In the presence of transition metal chlorides, acid anhydrides are highly active in promoting the dealkylation of tertiary amines, and good yields of N,N-dialkylamides are obtained.
Gamma-radiolytic stability of new methylated TODGA derivatives for minor actinide recycling
作者:Hitos Galán、Christopher A. Zarzana、Andreas Wilden、Ana Núñez、Holger Schmidt、Richard J. M. Egberink、Andrea Leoncini、Joaquín Cobos、Willem Verboom、Giuseppe Modolo、Gary S. Groenewold、Bruce J. Mincher
DOI:10.1039/c5dt02484f
日期:——
Open the door to the understanding of radiolytic ruptures of extracting ligands under gamma radiation.