R Ghahremanzadeh - Nanobiotechnology Research Center, Avicenna Research Institute
M.M Amini - bDepartment of Chemistry, Shahid Beheshti University,
S Karimi Behzad - Department of chemistry, Iran University of science and technology, Tehran, Iran
A Tabjarodi - Department of chemistry, Iran University of science and technology, Tehran, Iran

A one-pot, three-component method for the efficient and simple synthesis of novel 2'-amino-8',9'-dihydro-3'H-spiro[indoline-3,5'-pyrimido[4,5-b]quinoline]-2,4',6'(7'H,10'H)-trione derivatives in presence of piperidine grafted on MCM-41 as an efficient reusable heterogeneous catalyst in aqueous media is reported.

Isatin; Spirooxindol; Pyrimidine; Cyclohexane-1,3-dione, piperidine/MCM-41