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[3,4]-annulated pyrroles 1. Polynuclear heterocyclic systems based on pyrrolo[3,4-d]pyrimidine-2,4-dione |
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| Authors: | E B Tsupak M A Shevchenko |
| Institution: | (1) Department of Chemistry, Rostov State University, 7 ul. Zorge, 344090 Rostov-on-Don, Russian Federation |
| Abstract: | The intramolecular electrophilic substitution in 6-functionalized 1,3-dimethyl-1H-pyrrolo3,4-d]pyrimidine-2,4(3H,6H)-diones was used for the synthesis of pyrimido4′,5′:3,4]-pyrrolo1,2-a]quinoxaline-8,10(7H,9H)-dione, pyrimido4′,5′:3,4]pyrrolo2,1-c]1,2,4]benzo-triazine-8,10(7H,9H)-dione, and 2H-pyrimido4′,5′:3,4]pyrrolo1,2-a]indole-2,4,11(1H, 3H)-trione derivatives. Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 12, pp. 2180–2185, December, 2006. |
| Keywords: | 1H-pyrrolo[3 4-d]pyrimidine-2 4(3H 6H)-diones heterocyclization electrophilic substitution acylation pyrimido[4′ 5′ :3 4]pyrrolo[1 2-a]quinoxaline-8 10(7H 9H)-diones diazotization pyrimido[4′ 5′ :3 4]pyrrolo[2 1-c][1 2 4]benzotriazine-8 10(7H 9H)-diones 2H-pyrimido[4′ 5′ :3 4]pyrrolo[1 2-a]indole-2 4 11(1H 3H)-triones 1H NMR spectroscopy anisotropic effect |
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