Biocatalytic green alternative to existing hazardous reaction media: synthesis of chalcone and flavone derivatives <i>via</i> the Claisen–Schmidt reaction at room temperature
作者:Kashyap J. Tamuli、Ranjan K. Sahoo、Manobjyoti Bordoloi
DOI:10.1039/d0nj03839c
日期:——
Hook. F. peel ash (MCPA) are used as catalysts to promote an inexpensive, efficient and eco-friendly carbon–carbon bond forming crossed aldol reaction at room temperature in solvent free conditions. Furthermore, the resulting products were subjected to reactions with these promoters in an oxygen atmosphere and led to the formation of novel flavone derivatives. Moreover, the used catalysts were properly
Synthesis and Studies of the Inhibitory Effect of Hydroxylated Phenylpropanoids and Biphenols Derivatives on Tyrosinase and Laccase Enzymes
作者:Maria Antonietta Dettori、Davide Fabbri、Alessandro Dessì、Roberto Dallocchio、Paola Carta、Claudia Honisch、Paolo Ruzza、Donatella Farina、Rossana Migheli、Pier Andrea Serra、Roberto A. Pantaleoni、Xenia Fois、Gaia Rocchitta、Giovanna Delogu
DOI:10.3390/molecules25112709
日期:——
the viability of the new compounds was assayed on PC12 cells, four of which showed a viability of roughly 80% at 40 µM. In silico studies on the crystal structure of laccase enzyme identified a hydroxylated biphenyl bearing a prenylated chain as the lead structure, which activated strong and effective interactions at the active site of the enzyme. These data were confirmed by in vivo experiments performed
Syntheses of 2-methoxyestradiol (1) and eugenol (6) template based conformationally flexible and rigid diarylpropenes, 14(a–l) and 20(a–e), as nonsteroidal anticancer agents have been performed. The synthesized compounds were evaluated for their anticancer activity in in vitro using a panel of human cancer cell lines viz. MCF-7, A549, DU 145, KB and MDA-MB-231by SRB assay. Compounds 14i, 14k and 15a showed significant anticancer activity at IC50 between 10.27 μM to 27.91 μM in different cancer cell lines. The most active molecule, 14k, inhibited proliferation of cells by inducing apoptosis and arresting the cell cycle at the G2/M phase. In vitro toxicity of these compounds (14i, 14k and 15a) in healthy hepatic monocyte (THP-1) cells showed high selectivity of compounds towards cancerous vs. healthy cells.