110179-96-9Relevant academic research and scientific papers
Discovery of novel VEGFR-2 inhibitors embedding 6,7-dimethoxyquinazoline and diarylamide fragments
Wang, Ru,Liu, Hu,You, Yuan-Yuan,Wang, Xin-Yu,Lv, Bing-Bing,Cao, Li-Qin,Xue, Jia-Yu,Xu, Yun-Gen,Shi, Lei
supporting information, (2021/02/02)
VEGF/VEGFR-2 signaling plays a critical part in tumor angiogenesis. Inhibition of this pathway has been considered as a promising approach for cancer treatment. In this work, a series of 6,7-dimethoxy-4-anilinoquinazoline derivatives bearing diarylamide moiety were designed, synthesized and evaluated as potent inhibitors of VEGFR-2 kinase. Their in vitro antiproliferation activities against two human cancer cell lines Hep-G2 and MCF-7 have also been determined. Among them, compound 14b exhibited the most potent inhibitory activity against VEGFR-2 with IC50 value of 0.016 ± 0.002 μM and it showed the most potent antiproliferative effect against Hep-G2 and MCF-7 with IC50 values at low-micromolar range. Molecular docking studies revealed that these compounds represented by the most potent compound 14b could bind well to the ATP-binding site of VEGFR-2, which suggested that compound 14b could be a potential anticancer agent targeting VEGFR-2.
Effective nitration of anilides and acrylamides by tert-butyl nitrite
Ji, Yi-Fei,Yan, Hong,Jiang, Qi-Bai
, p. 2051 - 2060 (2015/03/18)
Nitro compounds are important intermediates in synthetic organic chemistry and the chemical industry. Herein, the efficient copper-catalyzed [10% Cu(NO3)2·3H2O] nitration of anilides was developed by using TBN (tert-butyl nitrite) as a nitrating reagent to give the corresponding nitro-substituted aromatic products in good to excellent yields. The use of TBN also led to the selective nitration of acrylamides at room temperature to afford only the (E) isomer of the nitration product. A series of anilides and acrylamides with a broad array of functional groups were well-tolerated by this procedure. This synthetic method has many advantages, which include inexpensive starting materials, mild reaction conditions, a fast reaction rate, and high yields. A mechanistic investigation indicates that a nitro radical, which is generated from the thermal homolysis of TBN, is involved in the two nitration processes. The efficient nitration of both anilides and acrylamides was achieved by using TBN (tert-butyl nitrite) as a metal-free nitrating reagent. This synthetic method has many advantages such as mild reaction conditions, a fast reaction rate, good to excellent yields, and a broad substrate scope. Our investigation indicates that a nitro radical is involved in the reaction mechanism.
