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Communication | Regular issue | Vol 6, No. 3, 1977, pp.273-276
Published online, 1st January, 1970
DOI: 10.3987/R-1977-03-0273
New Syntheses of Fervenulin 4-Oxides

Keitaro Senga,* Misuzu Ichiba, and Sadao Nishigaki

*Pharmaceutical Institute, School of Medicine, Keio University, Shinanomachi 35, Shinjuku, Tokyo 160-0016, Japan

Abstract

Treatment of 1,3-dimethyl-6-hydrazino-5-nitrosouracil (I) with dimethylformamide-dimethyl sulfate, formic acid, or triethyl orthoformate afforded fervenulin 4-oxide (IIa), respectively. 3-Substituted fervenulin 4-oxides (IIb-c) were also prepared by the reaction of (I) with respective ortho esters.