New syntheses of pyrimido[4,5-c]pyridazines related to fervenulin |
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| Authors: | Keitaro Senga Junko Sato Yukako Kanamori Misuzu Ichiba Sadao Nishigaki Mitsuk Noguchi Fumio Yoneda |
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| Institution: | Keitaro Senga,Junko Sato,Yukako Kanamori,Misuzu Ichiba,Sadao Nishigaki,Mitsukò Noguchi,Fumio Yoneda |
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| Abstract: | Pyrimido4,5-c]pyridazines related to an antibiotic fervenulin were prepared by two routes: one involving the reaction of 6-hydrazino-1,3-dimethyl(or 3-methyl)uracil with phenacyl bromides, and the other involving the reaction of 6-benzylidenehydrazino-1,3-dimethyluracils with dimethyl-formamide dimethylacetal. |
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