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
The present short communication describes a Lewis acid (Zn[(L)proline]2) catalysed one pot synthesis of Hantzsch 1,4-dihydropyridine (DHP) derivatives under solvent-free condition by conventional heating and microwave irradiation. The Lewis acid catalyst Zn[(L)proline]2 used in this reaction afford moderate to good yield. The catalyst is reusable upto five cycles without appreciable loss of its catalytic
Reddey, B. Palakshi; Raiesh; Vijayakumar, Indian Journal of Heterocyclic Chemistry, 2011, vol. 20, # 1, p. 281 - 282
作者:Reddey, B. Palakshi、Raiesh、Vijayakumar
DOI:——
日期:——
Shinde, D. B.; Shinde, N. D.; Shingare, M. S., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1995, vol. 34, # 10, p. 920 - 922
作者:Shinde, D. B.、Shinde, N. D.、Shingare, M. S.、Dubey, M. P.、Patnaik, G. K.
DOI:——
日期:——
Synthesis and 3D-QSAR study of 1,4-dihydropyridine derivatives as MDR cancer reverters
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.