Pyrazolo[2′,3′:3,4][1,3]oxazino[5,6-b]quinoxaline, a novel tetracyclic ring system |
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| Authors: | Christian BanekovichKurt Mereiter Barbara Matuszczak |
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| Institution: | a Institute of Pharmacy, Department of Pharmaceutical Chemistry, University of Innsbruck, Innrain 52a, A-6020 Innsbruck, Austria
b Department of Chemistry, Vienna University of Technology, Getreidemarkt 9, A-1060 Vienna, Austria |
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| Abstract: | Reaction of 2-chloro-3-(3-chloro-1H-pyrazol-5-yl)quinoxaline and aldehydes does not afford the corresponding N-(α-hydroxyalkylated) derivatives but results in a cyclisation reaction to give a derivative bearing the hitherto undescribed pyrazolo2′,3′:3,4]1,3]oxazino5,6-b]quinoxaline system. |
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| Keywords: | pyrazolo[2&prime 3&prime :3 4][1 3]oxazino[5 6-b]quinoxaline tetracyclic system novel ring system |
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