Synthesis of 1,4-dihydropyrazolo[4,3-b]indoles via intramolecular C(sp2)-N bond formation involving nitrene insertion, DFT study and their anticancer assessment
作者:Manpreet Kaur、Vikrant Mehta、Aabid Abdullah Wani、Sahil Arora、Prasad V. Bharatam、Ashoke Sharon、Sandeep Singh、Raj Kumar
DOI:10.1016/j.bioorg.2021.105114
日期:2021.9
deoxygenation of o-nitrophenyl-substituted N-aryl pyrazoles and subsequent intramolecular (sp2)-N bond formation under microwave irradiation expedite modified Cadogan condition. This method allows access to NH-free as well as N-substituted fused indoles. DFT study and controlled experiments highlighted the role of nitrene insertion as one of the plausible reaction mechanisms. Furthermore, the target compounds
Cell Cycle Arrest and Apoptosis Induction by an Anticancer Chalcone Epoxide
作者:Haiyong Han、Yu Zhao、Timothy Cuthbertson、Rosemarie F. Hartman、Seth D. Rose
DOI:10.1002/ardp.200900261
日期:——
were carried out. Treatment of cells with 50 µM 4a resulted in dramatic accumulation at G2/M (61% after 12 h for 4a vs. 15% for untreated cells). The cells rapidly entered apoptosis. After 12 h, 26% of cells treated with 50 µM 4a had entered apoptosis vs. 4% for cells treated with 100 µM etoposide and 2% for untreated cells. Compound 4a interfered with paclitaxel enhancement of tubulin polymerization,