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Five-membered 2,3-dioxo heterocycles: LXXXIX. Reaction of methyl 1-aryl-3-cinnamoyl-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates with (E)-4-arylaminopent-3-en-2-ones. Crystalline and molecular structure of 9-acetyl-4-cinnamoyl-3-hydroxy-1-(4-methoxyphenyl)-8-methyl-7-phenyl-1,7-diazaspiro[4.4]nona-3,8-diene-2,6-dione |
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| Authors: | P S Silaichev V O Filimonov P A Slepukhin A N Maslivets |
| Institution: | 1. Institute of Natural Sciences, Perm State National Research University, ul. Genkelya 4, Perm, 614990, Russia 2. Perm State National Research University, Perm, Russia 3. Postovskii Institute of Organic Synthesis, Ural Division, Russian Academy of Sciences, ul. Akademicheskaya/S. Kovalevskoi 22/20, Yekaterinburg, 620990, Russia |
| Abstract: | Methyl 1-aryl-3-cinnamoyl-4,5-dioxo-4,5-dihydro-1H-pyrrole-2-carboxylates reacted with 4-benzylamino- and 4-arylaminopent-3-en-2-ones to give 1-aryl-7-benzyl- and 1,7-diaryl-9-acetyl-4-cinnamoyl-3-hydroxy-8-methyl-1,7-diazaspiro4.4]nona-3,8-diene-2,6-diones. The crystalline and molecular structures of 9-acetyl-4-cinnamoyl-3-hydroxy-1-(4-methoxyphenyl)-8-methyl-7-phenyl-1,7-diazaspiro4.4]nona-3,8-diene-2,6-dione were studied by X-ray analysis. |
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