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Communication | Regular issue | Vol 26, No. 1, 1987, pp.81-83
Published online, 1st January, 1970
DOI: 10.3987/R-1987-01-0081

Katsuhide Matoba, Masaru Sugiura, Takashi Terada, and Takao Yamazaki

*Faculty of Pharmaceutical Sciences, Toyama Medical and Pharmaceutical University, 2630 Sugitani, Toyama, Toyama 930-0194, Japan


4-Methyl-3-oxo-1-styrylpyrrolo[1,2-a]quinoxalin-10-ium chloride (4) and 3-hydroxy-4-methyl-1-styrylpyrrolo[1,2-a]quinoxaline(3a) hydrochloride were cyclized exclusively to 2-hydroxy-3-methyl-8-phenylindolizino-[3,4,5,6-cde]quinoxaline(6a) and its 8,9-dihydro compound (5a), respectively, by the irradiation of high pressure mercury lamp.