DAVE, CHAITANYA G.;SHAH, P. R.;UPADHYAYA, S. P., J. INDIAN CHEM. SOC., 64,(1987) N 11, 713-715
作者:DAVE, CHAITANYA G.、SHAH, P. R.、UPADHYAYA, S. P.
DOI:——
日期:——
The gould-jacob type of reaction for the synthesis of novel pyrimidopyrrolopyrimidines: A comparison of classical heating<i>vs</i>solvent free microwave irradiation
作者:Nirmal D. Desai
DOI:10.1002/jhet.5570430530
日期:2006.9
The Gould-Jacobtype of reaction for the synthesis of ethyl 4-oxo-8,10-substituted-4,8-dihydropyrimido[1,2-c]pyrrolo[3,2-e]pyrimidine-3-carboxylates 5 has been carried out conventionally by the condensation between 4-aminopyrrolo[2,3-d]pyrimidines 2 and diethyl ethoxymethylenemalonate 3 via acyclic intermediates diethyl N-[5,7-substituted-7H-pyrrolo[2,3-d]pyrimidin-4-yl]aminomethylenemalonates 4 and