Graphite catalyzed solvent free synthesis of dihydropyrimidin-2(1H)-ones/thiones and their antidiabetic activity

被引:84
作者
Dhumaskar, Kashinath L. [1 ]
Meena, Surya Nandan [2 ]
Ghadi, Sanjeev C. [2 ]
Tilve, Santosh G. [1 ]
机构
[1] Goa Univ, Dept Chem, Taleigao Plateau 403206, Goa, India
[2] Goa Univ, Dept Biotechnol, Taleigao Plateau 403206, Goa, India
关键词
Biginelli reaction; Multicomponent reaction; Solvent less; Graphite catalysis; Dihydropyrimidinones; alpha-Amylase inhibition; Antidiabetic; ONE-POT SYNTHESIS; BIGINELLI REACTION; EFFICIENT SYNTHESIS; GREEN SYNTHESIS; DIHYDROPYRIMIDINONES; ACID; 3,4-DIHYDROPYRIMIDIN-2(1H)-ONES; INHIBITOR; ALDEHYDES; EXTRACT;
D O I
10.1016/j.bmcl.2014.04.099
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
A solvent free three component condensation reaction between an aldehyde, ethyl acetoacetate and urea catalyzed by graphite, a green catalyst is described for the synthesis of dihydropyrimidin-2(1H)-ones. This protocol is scalable and the catalyst is reusable. This method is also applied for the synthesis of dihydropyrimidin-2(1H)-thiones. alpha-Amylase, a key enzyme in carbohydrate metabolism is generally targeted for management of type 2 diabetes. The therapeutic potential of the dihydropyrimidinones and dihydropyrimidinthiones to inhibit alpha-amylase activity was evaluated by in vitro assay. Of the synthesized compounds 3,4-dihydropyrimidin-2(1H)-thione (1k) demonstrated highest inhibition of a-amylase activity. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2897 / 2899
页数:3
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