5392-12-1Relevant articles and documents
2, 3-dihydronaphthalo [2, 3-b] furan-4, 9-diketone compound as well as preparation method and application thereof
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Paragraph 0215-0217, (2020/11/05)
The invention provides a 2, 3-dihydronaphthalo [2, 3-b] furan-4, 9-diketone compound as well as a preparation method and application thereof, and belongs to the technical field of medicines. The invention particularly provides the 2, 3-dihydronaphthalo [2, 3-b] furan-4, 9-diketone compounds shown as general formulas I-A and I-B, a pharmaceutical composition containing the compounds, and a preparation method of the compounds. The compound has STAT3 inhibitory activity and can be used for preparing drugs for treating and/or preventing diseases related to STAT3 activity, and the diseases comprisevarious cancers such as breast cancer, lung cancer, oral cancer, kidney cancer, esophageal cancer, liver cancer, stomach cancer, intestinal cancer, cervical cancer and ovarian cancer.
Highly Efficient Microwave-assisted One-Pot Synthesis of Aromatic Nitriles from Aromatic Aldehydes
Pujari,Thorat,Mahipal,Bhondwe
, p. 702 - 706 (2019/07/17)
A highly efficient and environmentally benign protocol is described for the microwave-assisted one-pot synthesis of aromatic nitriles from aromatic aldehydes by the reaction with hydroxylamine hydrochloride in DMSO, which involves the intermediate formation of aldoximes and subsequent dehydration. The developed synthetic methodology can be readily accomplished with various aldehydes containing both electron-donor and electron-acceptor groups, providing excellent yields of the target products in shorter reaction times (1–2 min) compared to previously reported methodologies.
Synthesis of pharmacologically important naphthoquinones and anticancer activity of 2-benzyllawsone through DNA topoisomerase-II inhibition
Kumar, Balagani Sathish,Ravi, Kusumoori,Verma, Amit Kumar,Fatima, Kaneez,Hasanain, Mohammad,Singh, Arjun,Sarkar, Jayanta,Luqman, Suaib,Chanda, Debabrata,Negi, Arvind S.
, p. 1364 - 1373 (2017/02/18)
Naphthoquinones are naturally occurring biologically active entities. Practical de novo syntheses of three naphthoquinones i.e. lawsone (1), lapachol (2), and β-lapachone (3b) have been achieved from commercially available starting materials. The conversion of lapachol (2) to β-lapachone (3b) was achieved through p-TSA/Iodine/BF3-etherate mediated regioselective cyclisation. Further, 2-alkyl and 2-benzyllawsone derivatives have been prepared as possible anticancer agents. Four derivatives exhibited significant anticancer activity and the best analogue i.e. compound 21a exhibited potential anticancer activity (IC50?=?5.2?μM) against FaDu cell line. Compound 21a induced apoptosis through activation of caspase pathway and exerted cell cycle arrest at S phase in FaDU cells. It also exhibited significant topoisomerase-II inhibition activity. Compound 21a was found to be safe in Swiss albino mice up to 1000?mg/kg oral dose.
