Synthesis of 9,10-Phenanthrenequinones by Photocyclization of Derivatives of Benzoins: Scope and Limitation of the Methodology
摘要:
Symmetric 9,10-phenanthrenequinones with methyl, methoxy, and chloro substituents at the 3 and 6 positions have been synthesized by photocyclization of 4,5-bis-(aryl)-2-phenyl-1,3,2-dioxaboroles and 2,3-diaryldioxenes followed by oxidative hydrolysis.
[EN] TRIAZOLE AGONISTS OF THE APJ RECEPTOR<br/>[FR] TRIAZOLES AGONISTES DU RÉCEPTEUR APJ
申请人:AMGEN INC
公开号:WO2016187308A1
公开(公告)日:2016-11-24
Compounds of Formula I and Formula II, pharmaceutically acceptable salt thereof, stereoisomers of any of the foregoing, or mixtures thereof are agonists of the APJ Receptor and have use in treating cardiovascular and other conditions. Compounds of Formula I and Formula II have the following structures where the definitions of the variables are provided herein.
hydrogenation reactions. Herein we discovered homolytic activation of Si–H bonds on the surface of nanoporous gold (NPG), forming hydrogen radicals and [Au]–[Si] intermediates. By virtue of this new reactivity, we achieved highly selective mono and sequential alcoholysis of dihydrosilane. In addition, the amphiphilic nature of the [Au]–[Si] intermediate allows for a new bis-silylation reaction of cyclic ethers
Preparation of Di- and polynitrates by ring-opening nitration of epoxides by dinitrogen pentoxide (N2O5)
作者:Peter Golding、Ross W Millar、Norman C Paul、David H Richards
DOI:10.1016/s0040-4020(01)87978-3
日期:1993.8
hydrocarbon solvents (principally CH2Cl2) to give vicinal nitrate ester products by a novel ring-opening nitrationreaction. The procedure offers easier temperature control and simpler isolation procedures compared with conventional mixed acid nitrations; it also enables selective nitrationreactions to be carried out on polyfunctional substrates. The scope and limitations of the reaction, as well as
通过新颖的开环硝化反应,使十八种各种环氧化合物与N 2 O 5在氯化烃溶剂(主要为CH 2 Cl 2)中反应,得到邻位硝酸酯产物。与传统的混合酸硝化方法相比,该方法提供了更轻松的温度控制和更简单的分离步骤。它还可以在多官能底物上进行选择性硝化反应。讨论了反应的范围和局限性,以及利用N 2 O 4与硝酸亚硝酸酯原位进行原位氧化的替代方法的范围和局限性。
Tetranitromethane as an efficient reagent for the conversion of epoxides into β-hydroxy nitrates
作者:Yuliya A. Volkova、Olga A. Ivanova、Ekaterina M. Budynina、Elena B. Averina、Tamara S. Kuznetsova、Nikolai S. Zefirov
DOI:10.1016/j.tetlet.2008.04.050
日期:2008.6
A convenient regioselective method for the preparation of β-hydroxy nitrates based on the ring opening reaction of epoxides by tetranitromethane in the presence of triethylamine is described. A series of substituted β-hydroxy nitrates were obtained in high yields under mild conditions.
[EN] 5-ALKYLTHIO-7-[(4-ARYLBENZYL)AMINO]-1(2)H-PYRAZOLO[4,3-D]PYRIMIDINES FOR TREATMENT OF LYMPHOMA<br/>[FR] 5-ALKYLTHIO-7-[(4-ARYLBENZYL) AMINO] -1 (2) H-PYRAZOLO [4,3-D] PYRIMIDINES POUR LE TRAITEMENT DU LYMPHOME
申请人:UNIV PALACKEHO
公开号:WO2019149295A1
公开(公告)日:2019-08-08
The present invention relates to 5-alkylthio-7-[(4-arylbenzyl)amino]-1(2)H-pyrazolo[4,3-d]pyrimidine derivatives of formula I which are effective inhibitors of kinases and exhibit strong antiproliferative and proapoptotic properties on lymphoma cells. This invention further relates to use of said derivatives in the treatment of blood hyperproliferative diseases, such as Non-Hodgkin lymphomas.