4998-07-6Relevant articles and documents
Goering et al.
, p. 1533 (1975)
Design, synthesis and biological evaluation of novel N-sulfonylamidine-based derivatives as c-Met inhibitors via Cu-catalyzed three-component reaction
Fang, Sen-Biao,Li, Hui-Jing,Nan, Xiang,Wu, Rui,Wu, Yan-Chao,Zhang, Jing,Zhang, Zhi-Zhou
, (2020/06/04)
In our continuing efforts to develop novel c-Met inhibitors as potential anticancer candidates, a series of new N-sulfonylamidine derivatives were designed, synthesized via Cu-catalyzed multicomponent reaction (MCR) as the key step, and evaluated for their in vitro biological activities against c-Met kinase and four cancer cell lines (A549, HT-29, MKN-45 and MDA-MB-231). Most of the target compounds showed moderate to significant potency at both the enzyme-based and cell-based assay and possessed selectivity for A549 and HT-29 cancer cell lines. The preliminary SAR studies demonstrated that compound 26af (c-Met IC50 = 2.89 nM) was the most promising compound compared with the positive foretinib, which exhibited the remarkable antiproliferative activities, with IC50 values ranging from 0.28 to 0.72 μM. Mechanistic studies of 26af showed the anticancer activity was closely related to the blocking phosphorylation of c-Met, leading to cell cycle arresting at G2/M phase and apoptosis of A549 cells by a concentration-dependent manner. The promising compound 26af was further identified as a relatively selective inhibitor of c-Met kinase, which also possessed an acceptable safety profile and favorable pharmacokinetic properties in BALB/c mouse. The favorable drug-likeness of 26af suggested that N-sulfonylamidines may be used as a promising scaffold for antitumor drug development. Additionally, the docking study and molecular dynamics simulations of 26af revealed a common mode of interaction with the binding site of c-Met. These positive results indicated that compound 26af is a potential anti-cancer candidate for clinical trials, and deserves further development as a selective c-Met inhibitor.
A 3, 4 - dihydro -7 - methoxy -4 - [...] -6 - ethoxylate ester preparation method (by machine translation)
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Paragraph 0070-0072, (2019/05/16)
The present invention relates to organic chemical and medical technology field, in particular to a 3, 4 - dihydro - 7 - methoxy - 4 - [...] - 6 - ethoxylate ester preparation method. The present invention provides a gefitinib 3, 4 - dihydro - 7 - methoxy - 4 - [...] - 6 - ethoxylate ester preparation method comprises the following steps: nitration reaction, oxidation reaction, selective demethylation reaction, reduction reaction, a cyclization reaction, phenolic hydroxyl acetylation reaction. Preparation method provided by the invention can at the same time reducing the cost, it is easy for the refined purification, easy preparation and control of related impurities, the overall preparation process routes are greatly optimized, is suitable for industrial scale production. (by machine translation)
