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Communication | Regular issue | Vol 6, No. 8, 1977, pp.1125-1128
Published online, 1st January, 1970
DOI: 10.3987/R-1977-08-1125
Reactions of Acyl-aminoquinone Tosylhydrazones. Synthesis of Pyrrolo[1,2-a]indoloquinone via Banzoxazoline by Thermolysis and Photolysis

Mitsuo Akiba, Yoshiyuki Kosugi,* and Toyozo Takada

*School of Pharmacy, Tokyo University of Pharmacy and Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan


The photolysis and thermolysis of the acetylpyrrolidinoquinone tosylhydrazone (1) afforded the benzoxazoline (5) in a good yield, which then turned into 2,3-dihydro-6,9-dimethyl-5,8-dioxo-1H-pyrrolo[l,2-a]indole (8) having the mother skeleton of mitomycins.