VEGFR-2 is an attractive target for the development of anti-tumor drugs and plays a crucial role in tumor angiogenesis. This study reports a series of novelthiophene-3-carboxamidederivatives based on PAN-90806 as VEGFR-2inhibitors, among which compound exhibits excellent anti-proliferative activity against HCT116, MCF7, PC3, and A549 cell lines, and has effective VEGFR-2 inhibitory activity with
New conditions for the synthesis of thiophenes via the Knoevenagel/Gewald reaction sequence. Application to the synthesis of a multitargeted kinase inhibitor
作者:David M. Barnes、Anthony R. Haight、Thomas Hameury、Maureen A. McLaughlin、Jianzhang Mei、Jason S. Tedrow、Joan Dalla Riva Toma
DOI:10.1016/j.tet.2006.07.008
日期:2006.12
Novel conditions have been developed for the preparation of substituted 2-aminothiophenes employing the Knoevenagel condensation followed by the Gewald reaction. The benefits of these conditions are their mildness, and the ease of product isolation. Thus, the Knoevenagel condensation is run in the presence of hexamethyldisilazane and acetic acid, which combine to perform the roles of desiccant, and catalyst. The Gewald reaction is performed with inorganic base in THF/water, which suppresses byproduct formation. This process has been employed in the total synthesis of a multitargeted kinase inhibitor. (c) 2006 Elsevier Ltd. All rights reserved.
Discovery and SAR development of thienopyridones: A class of small molecule AMPK activators
作者:Gang Zhao、Rajesh R. Iyengar、Andrew S. Judd、Barbara Cool、William Chiou、Lemma Kifle、Ernst Frevert、Hing Sham、Philip R. Kym
DOI:10.1016/j.bmcl.2007.04.011
日期:2007.6
AMP-activated protein kinase (AMPK) is well established as a sensor and regulator of intracellular and whole-body energy metabolism. A high-throughput screen was performed in order to identify chemotypes that are bound by AMPK. A novel thienopyridone compound (1) was identified and subsequently optimized. The structure-activity relationships that emerged from this effort are described. (c) 2007 Elsevier Ltd. All rights reserved.
A facile and practical one-pot synthesis of multisubstituted 2-aminothiophenes via imidazole-catalyzed Gewald reaction
A simple and efficient procedure was developed for the synthesis of multisubstituted 2-aminothiophene derivatives. In the presence of catalytic amount of imidazole, ketones or aldehydes, dicyanomethane and elemental sulfur were converted into the corresponding 2-aminothiophene derivatives in moderate to high yields in DMF at 60 degrees C. (C) 2011 Elsevier Ltd. All rights reserved.
Mg/La Mixed Oxide as an Efficient Heterogeneous Basic Catalyst for Synthesis of 2-Aminothiophenes Under Microwave Irradiation
作者:Farid Moeinpour、Nadieh Dorostkar、Majid Vafaei
DOI:10.1080/00397911.2011.557175
日期:2012.8.15
Microwave-assisted synthesis of 2-aminothiophenes via a Gewald reaction using a heterogeneous strong basic Mg/La mixed oxide catalyst is described.