Direct Synthesis of Propen-2-yl Sulfones through Cascade Reactions Using Calcium Carbide as an Alkyne Source
作者:Lei Gao、Zhenrong Liu、Xiaolong Ma、Zheng Li
DOI:10.1021/acs.orglett.0c01915
日期:2020.7.2
A simple method for the construction of propen-2-yl sulfones through cascadereactions of calcium carbide with arylsulfonylhydrazones using copper as a mediator is described. The salient features of this protocol are the use of readily available and easy-to-handle alkyne source, broad substrate scope, open-air condition, and simple operation procedure.
[EN] MOLECULES THAT ENHANCE EXTRACELLULAR VESICLE RELEASE<br/>[FR] MOLÉCULES QUI AMÉLIORENT LA LIBÉRATION DE VÉSICULES EXTRACELLULAIRES
申请人:UNIV CALIFORNIA
公开号:WO2023212095A1
公开(公告)日:2023-11-02
Provided herein are compounds that alter calcium mobilization and/or enhance extracellular vesicle production, compositions having the compounds, and methods of making and using the compounds.
Tandem Reaction of Propargyl Alcohol and <i>N</i>-Sulfonylhydrazone: Synthesis of Dihydropyrazole and Its Utility in the Preparation of 3,3-Diarylacrylonitrile
作者:Yuanxun Zhu、Shan Wen、Guangwei Yin、Deng Hong、Ping Lu、Yanguang Wang
DOI:10.1021/ol201203g
日期:2011.7.15
An efficient and straightforward strategy for the synthesis of 4-methylene-1-(phenylsulfonyl)-4,5-dihydro-1H-pyrazole from propargyl alcohol and N-sulfonylhydrazone is described. N-Sulfonyl allenamide is postulated to be the key intermediate for this tandem transformation.
Developing new chemical tools for DNA methyltransferase 1 (DNMT 1): A small-molecule activity-based probe and novel tetrazole-containing inhibitors
作者:Biwei Zhu、Jingyan Ge、Shao Q. Yao
DOI:10.1016/j.bmc.2015.03.006
日期:2015.6
development of cancers. Thus detection of endogenous DNMT activities and efficient inhibition of DNMTs have important therapeutic significance. In this work, a small molecule activity-based probe (ABP) of DNA methyltransferase 1 (DNMT1), T1, was developed. The probe was a clickable analog of tryptophan and was able to covalentlylabel endogenous DNMT1 and inhibit its enzymatic activity more effectively than