[EN] C7-FLUORO SUBSTITUTED TETRACYCLINE COMPOUNDS<br/>[FR] COMPOSÉS DE TÉTRACYCLINE C7-FLUOROSUBSTITUÉE
申请人:TETRAPHASE PHARMACEUTICALS INC
公开号:WO2010017470A1
公开(公告)日:2010-02-11
The present invention is directed to a compound represented by Structural Formula (A): or a pharmaceutically acceptable salt thereof. The variables for Structural Formula (A) are defined herein. Also described is a pharmaceutical composition comprising the compound of Structural Formula (A) and its therapeutic use.
SuFEx Reactions of Sulfonyl Fluorides, Fluorosulfates, and Sulfamoyl Fluorides Catalyzed by N-Heterocyclic Carbenes
作者:Muze Lin、Jinyun Luo、Yu Xie、Guangfen Du、Zhihua Cai、Bin Dai、Lin He
DOI:10.1021/acscatal.3c03820
日期:2023.11.17
Sulfur(VI) fluorideexchange (SuFEx) click chemistry provides a powerful tool for the rapid assembly of modular connections. Herein, we report an organocatalytic SuFEx reaction of sulfonyl fluorides, fluorosulfates, and sulfamoyl fluorides. Under the catalysis of 10 mol % N-heterocyclic carbene (NHC), or under the relay catalysis of NHC and HOBt, different SuFExable hubs efficiently undergo click reactions
Selective Co/Ti Cooperatively Catalyzed Biaryl Couplings of Aryl Halides with Aryl Metal Reagents
作者:Jing Zeng、Kun Ming Liu、Xin Fang Duan
DOI:10.1021/ol402599f
日期:2013.10.18
Various aryl bromides or chlorides, including those bearing a free COOH, OH, CONHR, and SO2NHR group, coupled with aryl magnesium or lithium reagents in the presence of 7.5 mol % CoCl2/15 mol % PBu3 and substoichiometric Ti(OEt)(4) (40 mol % to ArM) at room temperature in high yields with high chemo- and regioslectivity. This simple reaction represents the first example of Co/Ti cooperative catalysis which plays a key role in suppressing undesired homocouplings.
Vizgert, R. V.; Polyakova, E. V.; Chervinskii, A. Yu., Journal of general chemistry of the USSR, 1984, vol. 54, p. 806 - 810
作者:Vizgert, R. V.、Polyakova, E. V.、Chervinskii, A. Yu.
DOI:——
日期:——
Krafft; Roos, Chemische Berichte, 1892, vol. 25, p. 2261