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Communication | Regular issue | Vol 34, No. 12, 1992, pp.2277-2280
Published online, 1st January, 1970
DOI: 10.3987/COM-92-6174
A New Synthesis of 3H-Cycl[3.2.2]azino[1,2-e]cycl[3.3.2]azin-3-one Derivative

Yoshiro Matsuda,* Hiromi Gotou, Makoto Yamashita, Kimitoshi Takahashi, Shizuki Ide, Kazuki Furuno, Katsura Torisu, Takahiro Itou, and Chieko Motokawa

*School of Pharmaceutical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852, Japan

Abstract

Treatment of indolizinoquinolizinium salt (6) with dimethyl acetylenedicarboxylate in the presence of K2CO3 in refluxing nitrobenzene gave a nitrogen-bridged annulenoannulenone, 3H-cycl[3.2.2]azino[1,2-e]cycl[3.3.2]azinone derivative (7).