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Communication | Regular issue | Vol 4, No. 3, 1976, pp.461-465
Published online, 1st January, 1970
DOI: 10.3987/R-1976-03-0461
Photoreductive Cyclization of 5-Nitro-6-styryl(or Anilino)uracil Derivatives to Pyrrolo[3,2-d]pyrimidine and Alloxazine Derivatives

Shige Senda,* Kosaku Hirota, and Mikio Takahashi

*Gifu Pharmaceutical University, 6-1 Mitahora-higashi 5-chome, Gifu 502-8585, Japan

Abstract

Irradiation of 5-nitro-6-styryluracil and 6-anilino-5-nitrouracil derivatives causes a photoreductive cyclization to give the pyrrolo[3,2-d]pyrimidines and the alloxazines, respectively.