214472-41-0Relevant articles and documents
Electroreduction preparation method of gefitinib intermediate
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Paragraph 0042-0056, (2021/01/28)
The invention discloses an electroreduction preparation method of a gefitinib intermediate. The electroreduction preparation method comprises the steps that an acidic aqueous solution of 4-methoxy-5-(3-morpholinylpropoxy)-2-nitrobenzoate is used as cathode liquor in a diaphragm electrolyzer; the acidic aqueous solution is used as anode liquor; and relative to a reference electrode, the voltage ofa cathode working electrode is 1.00V-2.50V, the current density of the cathode working electrode is 25.0 mA/cm-250.0 mA/cm, the working temperature of an electrolytic cell is between 25 DEG C-80DEG C, electrolysis is performed, and gefitinib intermediate 2-amino-4-methoxy-5-(3-morpholinylpropoxy)methyl benzoate is prepared. In the electroreduction process, a reducing agent or an organic solvent is not used, by changing the electrode potential, the conversion rate and selectivity can be controlled, and a high-purity and high-yield intermediate is obtained.
A new heterocyclic compound initiates ROS accumulation and cause apoptotic cell death in human bone cancer cells
Lv, Guang,Yin, Chong-Lan
, p. 277 - 284 (2019/03/28)
A new heterocyclic compound 7-methoxy-6-(3-morpholinopropoxy)quinazolin-4(3H)-one (1), designed using methyl 5-hydroxy-4-methoxy-2-nitrobenzoate (2) as the starting material, was successfully obtained via multiple synthesis route and finally characterized by fourier transform infrared (FT-IR) spectroscopy, 1H nuclear magnetic resonance (NMR), and single crystal X-ray crystallography. We investigated its effect on cell viability and proliferation with Cell Counting Kit-8 (CCK8) assay. The results revealed that compound 1 could block the proliferation of Saos-2 bone cancer cells. In addition, Annexin V-FITC/PI assay and Western blot analysis were performed to detect whether compound 1 could induce cell apoptosis. The results indicated that compound 1 could increase the number of apoptotic cells remarkably. Moreover, we examined the impact of compound 1 on ROS generation. Results revealed that compound 1 up-regulated the reactive oxygen species (ROS) genes expression and promoted the accumulation of ROS in Saos-2 cells. Finally, molecular docking has been utilized to study the binding mode of compound 1 with tubulin.
A PROCESS FOR THE PREPARATION OF GEFITINIB
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Page/Page column 17, (2010/08/04)
The present invention provides an improved, industrial advantageous process for the preparation of gefitinib of formula (I), and its pharmaceutically acceptable salts thereof in high yield and purity.