Fast highly efficient 'on-solvent' non catalytic cascade transformation of benzaldehydes and 4-hydroxycoumarin into bis(4-hydroxycoumarinyl)arylmethanes
作者:Michail Elinson、Anatoly N. Vereshchagin、Olga O. Sokolova
DOI:10.24820/ark.5550190.p010.023
日期:——
Non-catalytic cascadereaction of benzaldehydes and two equivalents of 4-hydroxycoumarin initiated by reflux in propanol results in the fast (15 min) and efficient formation of substituted tetrahydro-1H-xanthen-1-ones in 93–98% yields. The developed fastcascade approach to the substituted bis(4hydroxycoumarinyl)arylmethanes, which are known as medicinally relevant substances with anti-HIV, antibiotic
Two series of biscoumarin (1-3) and dihydropyran (4-12) derivatives were successfully synthesized as new antitumor and antibacterial agents. The molecular structures of four representative compounds 2, 4, 7 and 10 were confirmed by single crystal X-ray diffraction study. The synthesized compounds (1-12) were evaluated for their antitumor activities against human intestinal epithelial adenocarcinoma cell line (HuTu80), mammary adenocarcinoma cell line (4T1) and pancreatic cancer cell line (PANC1) and antibacterial activities against one drug-sensitive Staphylococcus aureus (S. aureus ATCC 29213) strain and three MRSA strains (MRSA XJ 75302, Mu50, USA 300 LAC). The further mechanism study demonstrated that the most potent compound 1 could obviously inhibit the proliferation of cancer cells via the mechanism to induce apoptosis. (C) 2015 Elsevier Ltd. All rights reserved.
10.3998/ark.5550190.p010.023
作者:Elinson, Michail N.、Vereshchagin, Anatoly N.、Sokolova, Olga O.