[EN] COMPLEMENT FACTOR B INHIBITOR, AND PHARMACEUTICAL COMPOSITION THEREOF, PREPARATION METHOD THEREFOR AND USE THEREOF [FR] INHIBITEUR DU FACTEUR B DU COMPLÉMENT ET COMPOSITION PHARMACEUTIQUE DE CELUI-CI, PROCÉDÉ DE PRÉPARATION CORRESPONDANT ET UTILISATION ASSOCIÉE [ZH] 补体因子B抑制剂及其药物组合物、制备方法和用途
Two-Step Synthesis of Unsymmetrical Diaryl Sulfides by Electrophilic Thiolation of Non-functionalized (Hetero)arenes
作者:Marvin J. Böhm、Christopher Golz、Isabelle Rüter、Manuel Alcarazo
DOI:10.1002/chem.201802806
日期:2018.10.9
article reports the efficient preparation of a series of unsymmetrically substituted thioethers through a two‐step procedure consisting of an initial metal‐free C−H sulfenylation of electron‐rich (hetero)arenes with newly prepared succinylthioimidazolium salts. Subsequent reaction of the arylthioimidazolium intermediates with Grignard reagents afford the desired thioethers. The synthetic protocol described
An Efficient Ga(OTf)<sub>3</sub>/Isopropanol Catalytic System for Direct Reduction of Benzylic Alcohols
作者:Masahiro Sai
DOI:10.1002/adsc.201801135
日期:2018.11.16
first gallium‐catalyzed direct reduction of benzylicalcohols using isopropanol as a reductant. The reaction proceeds via gallium catalyst‐assisted hydride transfer of the in situ‐generated benzylic isopropyl ether. The method generates only water and acetone as byproducts and thus provides an atom‐economic and environmentally friendly approach to the synthesis of di‐ and triarylmethanes, which are important
Introduction of Allyl and Prenyl Side-Chains into Aromatic Systems by Suzuki Cross-Coupling Reactions
作者:Darío C. Gerbino、Sandra D. Mandolesi、Hans-Günther Schmalz、Julio C. Podestá
DOI:10.1002/ejoc.200900234
日期:2009.8
for the synthesis of allyl- and prenylaromatic compounds. The first part deals with the preparation of boron reagents like arylboronic acids and their pinacol esters as well as of pinacol allyl- and prenylboronates. The second part of the paper is devoted to the use of these boron reagents in Suzuki–Miyaura cross-coupling reactions leading to allylation and prenylation of aromatic compounds. Of the
Unified Protocol for Fe-Based Catalyzed Biaryl Cross-Couplings between Various Aryl Electrophiles and Aryl Grignard Reagents
作者:Lei Wang、Yi-Ming Wei、Yan Zhao、Xin-Fang Duan
DOI:10.1021/acs.joc.9b00151
日期:2019.5.3
Ti(OEt)4/PhOM enabled a highly general iron-based catalyst system, which could efficiently catalyze the biaryl coupling reaction between various electrophiles (I, Br, Cl, OTs, OCONMe2, OSO2NMe2) and common or functionalized aryl Grignardreagents with high functional group tolerance. Selective couplings of aryl iodides and bromides over the corresponding oxygen-based electrophiles have been achieved, and
[EN] PROGESTERONE ANTAGONISTS<br/>[FR] ANTAGONISTES DE PROGESTÉRONE
申请人:EVESTRA INC
公开号:WO2013016725A1
公开(公告)日:2013-01-31
Described herein are compounds which either act as pure antiprogestins or as antiprogestins with partial agonistic activity and methods of treating cancer using such compounds.