SYNTHESIS OF PYRIDO[3,4-<i>d</i>]PYRIMIDINES BY CONDENSATION OF ETHYL 1-BENZYL-3-OXOPIPERIDINE-4-CARBOXYLATE WITH MORPHOLINE-4-CARBOXAMIDINE
DOI:
https://doi.org/10.1007/7531Keywords:
ethyl 1-benzyl-3-oxopiperidine-4-carboxylate, morpholine-4-carboxamidine, pyrido[3, 4-d]pyrimidines, condensationAbstract
A method has been developed for the synthesis of 4-amino-substituted 7-benzyl-2-morpholin-4-yl-5,6,7,8-tetrahydropyrido[3,4-d]pyrimidines by condensation of ethyl 1-benzyl-3-oxopiperidine-4-carboxylate with morpholine-4-carboxamidine and subsequent reaction of the 7-benzyl-2-morpholin-4-yl-5,6,7,8-tetrahydro-3H-pyrido[3,4-d]pyrimidin-4-one with trifluoromethanesulfonic anhydride and secondary amines.How to Cite
Kuznetsov, A. Yu.; Nam, N. L.; Chapyshev, S. V. Chem. Heterocycl. Compd. 2007, 43, 640. [Khim. Geterotsikl. Soedin. 2007, 762.]
For this article in the English edition see DOI 10.1007/s10593-007-0100-3