Synthesis and anticancer activity of new class of bisphosphonates/phosphanamidates
作者:Y.B. Kiran、C. Devendranath Reddy、D. Gunasekar、C. Suresh Reddy、Annette Leon、Luiz C.A. Barbosa
DOI:10.1016/j.ejmech.2007.05.014
日期:2008.4
Novel bis-heterocyclic bisphosphonates/phosphonamidates were synthesized utilizing the Pudovick reaction. The employment Of Nb2O5 as catalyst was found to increase the yields and purity of the bisbenzoxazaphosphine derivatives (13a-h). Their anticancer activity studies in vitro, on three human tumor cell lines NCI-H460 (lung large cell), MCF-7 (breast adenocarcinoma), and SF-268 (central nervous system glioblastoma), showed that bis-[3-(3-chloro-4-fluorophenyl)-2-oxo-3,4-dihydro-2H-2 lambda(5)-benzo[e][1,3,2]oxazaphosphinin-2-yl]arylmethanes (13a-h) and [(4-chlorophenyl)-(hydroxyamidophosphinoyl)-methyl]phosphonic acid (14) exhibited significant anticancer activity. (c) 2007 Elsevier Masson SAS. All rights reserved.