An atom economic synthesis and AChE inhibitory activity of novel dispiro 7-aryltetrahydro-1H-pyrrolo[1,2-c][1,3]thiazole and 4-aryloctahydroindolizine N-methylpiperidin-4-one hybrid heterocycles
摘要:
The 1,3-dipolar cycloaddition of azomethine ylides generated in situ from acenaphthenequinone and alpha-amino acids viz. 1,3-thiazolone-4-carboxylic acid and piperidine-2-carboxylic acid to a series of 1-methyl-3,5-bis[(E)-arylmethylidene]tetrahydro-4(1H)-pyridinones afforded novel spiro[5.2 '']acenaphthene-1 ''-onespiro[6.3']-5'-arylmethylidene-1'-methylpiperidin-4'-one-7-aryltetrahydro-1H-pyrrolo[12-c][1,3]thiazoles and spiro[2.2 '']acenaphthene-1 ''-onespiro[3.3']-5'-arylmethylidene-1'-methylpiperidin-4'-one-4-aryloctahydroindolizines respectively in quantitative yields. These compounds were evaluated for their AChE inhibitory activity and compound 3c was found to be the most potent with IC50 1.86 mu mol/L. (C) 2013 Elsevier Masson SAS. All rights reserved.
An atom economic synthesis and AChE inhibitory activity of novel dispiro 7-aryltetrahydro-1H-pyrrolo[1,2-c][1,3]thiazole and 4-aryloctahydroindolizine N-methylpiperidin-4-one hybrid heterocycles
作者:Sathiyamoorthi Sivakumar、Raju Ranjith Kumar、Mohamed Ashraf Ali、Tan Soo Choon
DOI:10.1016/j.ejmech.2013.04.050
日期:2013.7
The 1,3-dipolar cycloaddition of azomethine ylides generated in situ from acenaphthenequinone and alpha-amino acids viz. 1,3-thiazolone-4-carboxylic acid and piperidine-2-carboxylic acid to a series of 1-methyl-3,5-bis[(E)-arylmethylidene]tetrahydro-4(1H)-pyridinones afforded novel spiro[5.2 '']acenaphthene-1 ''-onespiro[6.3']-5'-arylmethylidene-1'-methylpiperidin-4'-one-7-aryltetrahydro-1H-pyrrolo[12-c][1,3]thiazoles and spiro[2.2 '']acenaphthene-1 ''-onespiro[3.3']-5'-arylmethylidene-1'-methylpiperidin-4'-one-4-aryloctahydroindolizines respectively in quantitative yields. These compounds were evaluated for their AChE inhibitory activity and compound 3c was found to be the most potent with IC50 1.86 mu mol/L. (C) 2013 Elsevier Masson SAS. All rights reserved.