Five-membered 2,3-dioxo heterocycles: LV. Reaction of methyl 1-aryl-3-aroyl-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates with ethyl 3-arylaminobut-2-enoates |
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| Authors: | Yu. N. Bannikova E. A. Sedegova V. V. Khalturina A. N. Maslivets |
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| Affiliation: | (1) Perm State University, ul. Bukireva 15, Perm, 614990, Russia |
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| Abstract: | Methyl 1-aryl-3-aroyl-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates reacted with ethyl 3-aryl-aminobut-2-enoates to give the corresponding ethyl 1,7-diaryl-4-aroyl-3-hydroxy-8-methyl-2,6-dioxo-1,7-diazaspiro[4.4]nona-3,8-diene-9-carboxylates. |
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