[EN] METHOD FOR PATHOGENS, MICROORGANISMS, AND PARASITES INACTIVATION<br/>[FR] PROCÉDÉ D'INACTIVATION DE PATHOGÈNES, DE MICROORGANISMES ET DE PARASITES
申请人:ZATA PHARMACEUTICALS INC
公开号:WO2020023881A1
公开(公告)日:2020-01-30
The invention provides a method for inactivation or reduction of pathogens, microorganisms or parasites in a sample, media, composition, utility, device, surface or organism by treatment with an alkylating compound of Structure I, followed by elimination or reduction of the residual compound with Structure I by treatment with a neutralizing agent, which eliminates or reduces the toxicity or other undesirable properties of the alkylating compound with Structure I. The neutralizing agent may be present in a treatment solution or be part of a solid-phase agent, and preferably acts by eliminating the alkylating properties of the compound of Structure I.
Stereoselective and Divergent Construction of β-Thiolated/Selenolated Amino Acids via Photoredox-Catalyzed Asymmetric Giese Reaction
作者:Hongli Yin、Mengjie Zheng、Huan Chen、Siyao Wang、Qingqing Zhou、Qiang Zhang、Ping Wang
DOI:10.1021/jacs.0c04994
日期:2020.8.19
photoredox-catalyzed asymmetric method for the preparation of enantiopure β-thiolated/selenolated aminoacids using a simple chiral auxiliary, which controls the diastereoselectivity of the key alkylation step and acts as an orthogonal protecting group in the subsequent peptide synthesis. Our protocol can be used to prepare a wide range of β-thiolated/selenolated aminoacids on a gram scale, which would otherwise
硫和硒由于其氧化还原活性、高亲核性和酰基转移能力而在生物学中占有重要地位。硫醇化/硒化氨基酸,包括半胱氨酸、硒代半胱氨酸及其衍生物,在调节蛋白质的构象和功能方面发挥着关键作用,并作为肽设计和生物偶联的重要基序。不幸的是,获得对映体纯的 β-硫醇化/硒化氨基酸的通用且简明的方法仍然是一个未解决的问题。在此,我们提出了一种光氧化还原催化的不对称方法,使用简单的手性助剂制备对映体纯的 β-硫醇化/硒化氨基酸,它控制关键烷基化步骤的非对映选择性,并在随后的肽合成中充当正交保护基。我们的协议可用于在克规模上制备各种 β-硫醇化/硒化氨基酸,否则使用传统方法很难获得。通过制备一系列肽基硫醇/硒醇类似物,包括细胞色素 c 氧化酶亚基蛋白 7C 和催产素,我们的化学作用得到进一步强调和验证。
Stabilizing
<i>p</i>
‐Dithiobenzyl Urethane Linkers without Rate‐Limiting Self‐Immolation for Traceless Drug Release
given their intrinsic instability caused by the low pKa of aromatic thiols. Here, we examined the interplay between steric hindrance and the low-pKa effect on thiol-disulfideexchange reactions and uncovered a new thiol-disulfideexchange process for the self-immolation of p-thiobenzyl-based disulfides. We observed a central leaving group shifting effect in the α,α-dimethyl-substituted p-dithiobenzyl
Visible-Light Emulsion Photopolymerization of Styrene
作者:Frédéric Le Quéméner、Daniel Subervie、Fabrice Morlet-Savary、Jacques Lalevée、Muriel Lansalot、Elodie Bourgeat-Lami、Emmanuel Lacôte
DOI:10.1002/anie.201710488
日期:2018.1.22
is due to the use of visible light: the photons in the visible range are less scattered by larger objects and thus penetrate and initiate better the polymerizations. They are also greener and cheaper to produce via LEDs, and much safer than UVs. The method presented does not require any specific glassware; it works at lower temperature and delivers larger particles compared to thermal processes at similar
作者:Dadong Li、Xiaojian Wang、Fubo Shi、Ruojie Sha、Nadrian C. Seeman、James W. Canary
DOI:10.1039/c4ob01552e
日期:——
We describe two DNA-templated ligation strategies: native chemical ligation (NCL), and thiol-disulfide exchange. Both systems result in successful ligation in the presence of a DNA template. The stability of the product from the NCL reaction relies on exogenous thiol, while the thiol-disulfide reaction proceeds in a catalyst-free manner.
我们介绍了两种以 DNA 为模板的连接策略:原生化学连接(NCL)和硫醇-二硫化物交换。这两种系统都能在 DNA 模板存在的情况下成功连接。NCL 反应产物的稳定性依赖于外源硫醇,而硫醇-二硫化物反应则以无催化剂的方式进行。