Ultrasound-mediated, uranyl nitrate hexahydrate-catalyzed synthesis of 1,4-dihydropyridines under mild conditions
作者:B. Palakshi Reddy、S. Sarveswari、V. Vijayakumar
DOI:10.1007/s11164-014-1784-5
日期:2015.9
Synthesis of 1,4-dihydropyridines by three-component condensation reaction of aldehyde, 1,3-dicarbonyl compounds, and ammonium acetate have been found to be efficiently catalyzed by uranylnitratehexahydrate [UO2(NO3)2 · 6H2O] at room temperature under ultrasound irradiation. This novel synthetic method offers the advantages of high yields, short reaction times, simplicity, and easy workup compared
A series of symmetrical and unsymmetrical 1,4-dihydropyridines were synthesized by a rapid, single pot microwave irradiation (MWI) based protocol along with conventional approach and characterized by NMR, IR and mass spectroscopic techniques. The compounds were evaluated for their tumor cell cytotoxicity in HL-60 tumor cells. A 3D-QSAR study using CoMFA and CoMSIA was carried out to decipher the factors governing MDR reversing ability in cancer. The resulting contour maps derived by the best 3D-QSAR models provide a good insight into the molecular features relevant to the biological activity in this series of analogs. 3D contour maps as a result of 3D-QSAR were utilized to identify some novel features that can be incorporated into the 1,4-dihydropyridine framework to enhance the activity. (C) 2014 Elsevier Masson SAS. All rights reserved.
PEG400-Lithium Carbonate Catalyzed Synthesis of 1,4-Dihydropyridines under Solvent-free Conditions
作者:B. Palakshi Reddy、K. Rajesh、V. Vijayakumar
DOI:10.1080/00304948.2012.657562
日期:2012.1.1
Patakshi Reddy; Rajesh; Vijayakumar, Indian Journal of Heterocyclic Chemistry, 2011, vol. 20, # 3, p. 281 - 282