Expedient Preparation of Aryllithium and Arylzinc Reagents from Aryl Chlorides Using Lithium 4,4′-Di-tert-Butylbiphenylide and Zinc(II) Chloride
作者:Paul Knochel、Zhi-Liang Shen、Korbinian Sommer
DOI:10.1055/s-0034-1380697
日期:——
aryllithium and zinc reagents from inexpensive and readily available arylchlorides by using lithium 4,4′-di-tert-butylbiphenylide (LiDBB) as a lithiation reagent. The resulting organometallic reagents underwent subsequent reactions with a variety of electrophiles, such as an aldehydes, DMF, PhSSO2Ph, TsCN, an aryl halide, or an acid chloride (through Pd-catalyzed cross-coupling). Arylchlorides bearing substituents
[EN] SUBSTITUTED 1H-INDAZOL-1-OL ANALOGS AS INHIBITORS OF BETA CATENIN/TCF PROTEIN-PROTEIN INTERACTIONS<br/>[FR] ANALOGUES SUBSTITUÉS DE 1H-INDAZOL-1-OL EN TANT QU'INHIBITEURS D'INTERACTIONS PROTÉINE-PROTÉINE BÊTA-CATÉNINE/TCF
申请人:UNIV UTAH RES FOUND
公开号:WO2013120045A1
公开(公告)日:2013-08-15
In one aspect, the invention relates to substituted lH-benzo[d][l,2,3]triazol-l-ol analgoues, derivatives thereof, and related compound; synthetic methods for making the compounds; pharmaceutical compositions comprising the compounds; and methods of treating disorders, e.g. various tumors and cancers, associated with β-catenin/Tcf protein- protein interaction dysfunction using the compounds and compositions. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
Intermediates for the synthesis of epothilones and methods for their preparation
申请人:Novartis AG
公开号:US06350878B1
公开(公告)日:2002-02-26
The invention relates to a method of synthesis for a compound of formula (I),
wherein R is a heterocyclyl moiety and X1, X2, X3 and X4 are, independently of each other, protecting groups, which is appropriate for the synthesis of epothilone B and desoxyepothione B.
Constructing Quaternary Stereogenic Centers Using Tertiary Organocuprates and Tertiary Radicals. Total Synthesis of <i>trans</i>-Clerodane Natural Products
作者:Daniel S. Müller、Nicholas L. Untiedt、André P. Dieskau、Gregory L. Lackner、Larry E. Overman
DOI:10.1021/ja512527s
日期:2015.1.21
A new concise construction of trans-clerodane diterpenoids is reported in which oxacyclic and trans-hydronaphthalene fragments are coupled, and the critical C9-quaternary carbon stereocenter formed stereoselectively, by 1,6-addition of a tertiary cuprate or a tertiary carbon radical to β-vinylbutenolide. This strategy is specifically illustrated by total syntheses of (-)-solidagolactone (4), (-)-16-hydroxycleroda-3
[EN] BICYCLIC INDOLYL DERIVATIVES AND METHODS OF THEIR USE AS SEROTONERGIC AGENTS<br/>[FR] DERIVES D'INDOLYLE BICYCLIQUES, ET PROCEDES RELATIFS A LEUR UTILISATION COMME AGENTS SEROTONERGIQUES
申请人:WYETH CORP
公开号:WO2004111035A1
公开(公告)日:2004-12-23
Bicyclic indolyl derivatives and compositions containing such compounds are disclosed. Methods of using the bicyclic indolyl derivatives and compositions containing such composition as serotonergic agents, such as in the treatment of depression and anxiety, are also disclosed. In addition, processes for the preparation of bicyclic indolyl derivatives are disclosed.