[EN] POLYSUBSTITUTED 4-HYDROXYPYRIDINE AND 4-HYDROXYQUINOLINE DERIVATIVES AS GPR84 ANTAGONISTS [FR] DÉRIVÉS DE 4-HYDROXYPYRIDINE ET DE 4-HYDROXYQUINOLÉINE POLYSUBSTITUÉS UTILISÉS COMME ANTAGONISTES DE GPR84
Highly Efficient and Convenient Methods for the Direct Conversion of Aryl Silyl Ethers and Aryl Acetates into Aryl Alkyl Ethers
作者:Takeshi Oriyama、Kojiro Noda、Kaori Yatabe
DOI:10.1055/s-1997-3267
日期:1997.6
Direct conversion of aryl trialkylsilyl ethers and aryl acetates into the corresponding alkyl-protected phenols such as benzyl and allyl ethers can be conveniently performed by the reaction with alkyl halide in the presence of cesium fluoride and sodium methoxide, respectively, in a one-pot procedure.
PHENYL BENZYL ETHER DERIVATIVE AND PREPARATION METHOD AND APPLICATION THEREOF
申请人:ZHANG Zhiyong
公开号:US20170037008A1
公开(公告)日:2017-02-09
Parts of compounds, after being labeled by radionuclide, of the phenyl benzyl ether derivative, are used as Aβ plaque imaging agent. The structural formula of the phenyl benzyl ether derivative is shown by formula (I). The present invention develops a kind of brand new phenyl benzyl ether derivative which has high affinity with Aβ plaques in brains of AD patients. The chemical structure of the phenyl benzyl ether derivative is different from that of compounds disclosed in the prior art and the phenyl benzyl ether derivative belongs to a brand new compound for diagnosing and treating AD. The obtained Aβ plaque imaging agent has the advantages that the in-vivo stability is good, the fat solubility is low, the removal speed for the brain is fast, the problem of removing the radionuclide in vivo does not exist, and the application prospect and the market value are great.
A Unified and Practical Method for Carbon–Heteroatom Cross‐Coupling using Nickel/Photo Dual Catalysis
作者:Randolph A. Escobar、Jeffrey W. Johannes
DOI:10.1002/chem.202000052
日期:2020.4.21
While carbon-heteroatom cross-couplingreactions have been extensively studied, many methods are specific and limited to a particular set of substrates or functional groups. Reported here is a general method that allows for C-O, C-N and C-Scross-couplingreactions under one general set of conditions. We propose that an energy transfer pathway, in which an iridium photosensitizer produces an excited
Ethers made easy: Heating a solution containing a tosylhydrazone and either a phenol or an alcohol in the presence of K2CO3 leads to the corresponding ethers (see scheme; MW=microwave, Ts=tosyl). The reaction is fairly general for the preparation of aryl alkyl and alkyl alkyl ethers, and represents a new method for the reductive etherification of carbonylcompounds.
醚变得容易:在K 2 CO 3存在下加热含有甲苯磺酰s和苯酚或醇的溶液会生成相应的醚(参见方案; MW =微波,Ts =甲苯磺酰基)。该反应对于制备芳基烷基和烷基烷基醚是相当普遍的,并且代表了一种用于羰基化合物的还原醚化的新方法。
[EN] USE OF A 4-HYDROXYTOREMIFENE PRODRUG FOR TREATMENT OF BREAST CANCER<br/>[FR] EMPLOI D'UN PROMÉDICAMENT DE TYPE 4-HYDROXYTORÉMIFÈNE DANS LE TRAITEMENT DU CANCER DU SEIN
申请人:OLEMA PHARMACEUTICALS INC
公开号:WO2011129837A1
公开(公告)日:2011-10-20
The present invention is directed to compounds, compositions thereof, and the use of the compounds and compositions for the treatment and prevention of breast cancer. In one embodiment, the present invention relates to the use of a prodrug of endoxifen or 4-hydroxytoremifene or a related compound for the treatment of breast cancer in mono-therapy or in combination therapy, or for a reduction in the recurrence rate of previously-treated breast cancer.