The condensation of 6-substituted-aminouracils with o-halogenobenzaldehydes in dimethylformamide led to the formation of the corresponding 5-deazaflavins in a single step.
6-取代的氨基尿嘧啶与邻卤代苯甲醛在二甲基甲酰胺中的缩合导致一步形成相应的5-脱氮黄素。
Nagamatsu, Tomohisa; Hashiguchi, Yuko; Yoneda, Fumio, Journal of the Chemical Society. Perkin transactions I, 1984, # 3, p. 561 - 565