Abstract
8-Aroyl-3,4-dihydro-1H-pyrrolo[2,1-c][1,4]oxazine-1,6,7-triones reacted with urea to give 9-aroyl-8-hydroxy-6-(2-hydroxyethyl)-1,3,6-triazaspiro[4.4]non-8-ene-2,4,7-triones.
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Funding
This study was performed under financial support by the Russian Foundation for Basic Research (project no. 19-33-90 222), by the Ministry of Science and Higher Education of the Russian Federation (project no. 4.6774.2017/8.9), and by the Government of Perm Krai.
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Tretyakov, N.A., Maslivets, A.N. Reaction of Pyrrolo[2,1-c][1,4]oxazine-1,6,7-triones with Urea. Synthesis of Triazaspiro[4.4]non-8-ene-2,4,7-triones. Russ J Org Chem 56, 726–728 (2020). https://doi.org/10.1134/S1070428020040260
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DOI: https://doi.org/10.1134/S1070428020040260