Palladium-catalyzed ortho-selective CH bond chlorination of aromatic ketones
摘要:
A palladium-catalyzed ortho-selective C-H bond chlorination reaction for the preparation of 2-chloro aromatic ketones was described. Both electron-withdrawing and electron-donating groups on the aromatic rings are well tolerated under the optimized conditions. The 2-chloro aromatic ketones obtained by our method could be applied to synthesize the derivatives of 1H-indazole or benzo[d]isoxazole. (C) 2015 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
The present invention relates to compounds that inhibit of a5b1 function, processes for their preparation, pharmaceutical compositions containing them as the active ingredient, to their use as medicaments and to their use in the manufacture of medicaments for use in the treatment in warm blooded animals such as humans of diseases that have a significant angiogenesis or vascular component such as for treatment of solid tumours. The present invention also relates to compounds that inhibit a5b1, and also that exhibit appropriate selectivity profile(s) against other integrins.
Palladium-catalyzed ortho-selective CH bond chlorination of aromatic ketones
作者:Gang Shan、Gui-Yi Huang、Yu Rao、Hui Zhang
DOI:10.1016/j.cclet.2015.07.011
日期:2015.10
A palladium-catalyzed ortho-selective C-H bond chlorination reaction for the preparation of 2-chloro aromatic ketones was described. Both electron-withdrawing and electron-donating groups on the aromatic rings are well tolerated under the optimized conditions. The 2-chloro aromatic ketones obtained by our method could be applied to synthesize the derivatives of 1H-indazole or benzo[d]isoxazole. (C) 2015 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.