[EN] BIOLUMINESCENT COMPOSITIONS AND USES THEREOF<br/>[FR] COMPOSITIONS BIOLUMINESCENTES ET LEURS UTILISATIONS
申请人:ECOLE POLYTECHNIQUE FED DE LAUSANNE EPFL EPFL DAR TTO
公开号:WO2021152393A1
公开(公告)日:2021-08-05
Compositions and methods for non-invasively monitoring the intracellular processing of a biomolecule are provided. The compositions have a novel thio-luciferin moiety which can be conjugated to the biomolecule directly or via a linker such as disulfide bond wherein the luminescent (such as thio-luciferin) or pro-luminescent (such as thio-cyanobenzothiazoles) moiety is released upon reduction of the disulfide bond upon cytosolic internalization.
Synthesis of MeBmt and related derivatives <i>via</i> syn-selective ATH-DKR
作者:Adam Rolt、Paul M. O'Neill、T. Jake Liang、Andrew V. Stachulski
DOI:10.1039/c9ra08256e
日期:——
important naturally occurring immunosuppressant and antiviral agent. We present a convergent synthesis of MeBmt which relies on new aspects of dynamic kinetic resolution (DKR) to establish simultaneously the chirality at C(2) and C(3). We also show that this route is applicable to the synthesis of other derivatives.
不寻常的 α-氨基、β-羟基酸 MeBmt 是环孢菌素 A 的关键结构特征,环孢菌素 A 是一种重要的天然免疫抑制剂和抗病毒剂。我们提出了 MeBmt 的收敛合成,它依赖于动态动力学分辨率 (DKR) 的新方面来同时建立 C(2) 和 C(3) 的手性。我们还表明该路线适用于其他衍生物的合成。
Synthesis and Structure−Activity Relationship Studies of Cytotoxic Ester and Ether Anhydrovinblastine Derivatives
作者:Han-Kun Zhang、Yong Shao、Hong Ding、Li-Hong Hu
DOI:10.1021/np800284h
日期:2008.10.24
activities against human non-small-cell lung cancer (A549) and cervical epithelial adenocarcinoma (HeLa) cell lines. Ester anhydrovinblastine derivatives exhibited potent cytotoxicity, whereas the ether analogues were much less active. The size of the introduced substituents was the foremost factor in determining the resultant cytotoxic activity. Compound 12b showed a similar cytotoxic potency to the
One-Pot Decarboxylative Acylation of N-, O-, S-Nucleophiles and Peptides with 2,2-Disubstituted Malonic Acids
作者:Iryna O. Lebedyeva、Suvendu Biswas、Kevin Goncalves、Sean M. Sileno、Ashton R. Jackson、Kunal Patel、Peter J. Steel、Alan R. Katritzky
DOI:10.1002/chem.201403529
日期:2014.9.8
Monocarbonyl activation of 2,2‐disubstitutedmalonicacids with benzotriazole leads to decarboxylation of one of the carboxy groups and formation of a CH bond. Intermediate carbonyl benzotriazoles then readily acylate nucleophilic reagents and peptides resulting in libraries of conjugates and peptidomimetics.
A Practical Synthesis of β-Keto Thioesters by Direct Crossed-Claisen Coupling of Thioesters and N-Acylbenzotriazoles
作者:Don Coltart、Guoqiang Zhou、Daniel Lim、Fang Fang
DOI:10.1055/s-0029-1216971
日期:2009.10
Thioesters undergo chemoselective soft enolization and acylation with N-acylbenzotriazoles on treatment with MgBr2ËOEt2 and i-Pr2NEt to give β-keto thioesters. Prior enolate formation is not required and the reaction is conducted using untreated dichloromethane open to the air.