Conversion of tributylstannylferrocene to a variety of heteroaryl ferrocenes
作者:Chao-Min Liu、Bao-Hua Chen、Wan-Yi Liu、Xiao-Li Wu、Yong-Xiang Ma
DOI:10.1016/s0022-328x(99)00733-0
日期:2000.4
Tributylstannylferrocene (Fc-SnBu3) was converted to a variety of heteroaryl ferrocenes, such as 2-thiophenyl, 3-thiophenyl, 3-pyridyl, 3-quinolyl, 4-oxazolyl and 4-isoxazolyl ferrocene, by using Pd-catalyzed reactions. The Stille-coupling catalyst (PdCl2-PPh3) promotes the reaction between Fc-SnBu3 and electron-deficient heterocyclic bromides, while a modified catalyst (Pd-Ph3P-CuO) proves to be the choice for the coupling of Fc-SnBu3 with electron-rich heterocyclic bromides. (C) 2000 Elsevier Science S.A. All rights reserved.
Inhibition of 17β-HSD1: SAR of bicyclic substituted hydroxyphenylmethanones and discovery of new potent inhibitors with thioether linker
作者:Ahmed S. Abdelsamie、Emmanuel Bey、Nina Hanke、Martin Empting、Rolf W. Hartmann、Martin Frotscher
DOI:10.1016/j.ejmech.2014.05.074
日期:2014.7
breast cancer and endometriosis. The last step of its biosynthesis is catalyzed by 17β-hydroxysteroid dehydrogenasetype1 (17β- HSD1) which consequently is a promising target for the treatment of these diseases. Recently, we reported on bicyclicsubstitutedhydroxyphenylmethanones as potent inhibitors of 17β-HSD1. The present study focuses on rational structural modifications in this compound class with