Synthesis and urease inhibitory potential of benzophenone sulfonamide hybrid in vitro and in silico
摘要:
This study deals with the synthesis of benzophenone sulfonamides hybrids (1-31) and screening against urease enzyme in vitro. Studies showed that several synthetic compounds were found to have good urease enzyme inhibitory activity. Compounds 1 (N'-((4'-hydroxyphenyl)(phenyl)methylene)-4 ''-nitrobenzenesulfonohy-drazide), 2 (N'-((4'-hydroxyphenyl)(phenyl)methylene)-3 ''-nitrobenzenesulfonohydrazide), 3 (N'-((4'-hydroxyphenyl)(phenyl)methylene)-4 ''-methoxybenzenesulfonohydrazide), 4 (3 '',5 ''-dichloro-2 ''-hydroxy-N'-((4'-hydroxyphenyl)(phenyl)methylene)benzenesulfonohydrazide), 6 (2 '',4 ''-dichloro-N'-((4'-hydroxyphenyl)(phenyl)methylene)benzenesulfonohydrazide), 8 (5-(dimethylamino)-N'-((4-hydroxyphenyl)(phenyel)methylene)naphthalene-1-sulfono hydrazide), 10 (2 ''-chloro-N'-((4'-hydroxyphenyl)(phenyl)methylene)benzenesulfonohydrazide), 12 (N'-((4'-hydroxyphenyl)(phenyl)methylene)benzenesulfonohydrazide) have found to be potently active having an IC50, value in the range of 3.90-17.99 mu M. These compounds showed superior activity than standard acetohydroxamic acid (IC50 = 29.20 +/- 1.01 mu M). Moreover, in silico studies on most active compounds were also performed to understand the binding interaction of most active compounds with active sites of urease enzyme. Structures of all the synthetic compounds were elucidated by H-1 NMR, C-13 NMR, EI-MS and FAB-MS spectroscopic techniques.
Microwave-assisted green approach toward the unexpected synthesis of pyrazole-4-carboxylates
作者:Arshia、Syed Muhammad Saad、Shahnaz Perveen、Khalid Mohammed Khan、Wolfgang Voelter
DOI:10.1007/s13738-016-0855-5
日期:2016.8
AbstractA practically efficient, environment friendly, and solvent free microwave-assisted protocol was developed for the synthesis of pyrazole-4-carboxylates. In this connection, we synthesized five new compounds (4a-4e) via microwave irradiation of a mixture of benzophenone hydrazones and acetoacetates in the absence of solvent. Short reaction time, easy workup and quantitative yield are the striking