Title : AChE inhibitor: a regio- and stereo-selective 1,3-dipolar cycloaddition for the synthesis of novel substituted 5,6-dimethoxy spiro[5.3']-oxindole-spiro-[6.3'']-2,3-dihydro-1H-inden-1''-one-7-(substituted aryl)-tetrahydro-1H-pyrrolo[1,2-c][1,3]thiazole - Ashraf_2012_Bioorg.Med.Chem.Lett_22_508