作者:Yu. A. Azev、I. Ya. Postovskii、E. L. Pidémskii、A. F. Goleneva
DOI:10.1007/bf00777454
日期:1980.4
Previously, derivatives of isofervenulin were obtained by nucleophilic substitution of a 3-alkylthio group in 5,6,7,8-tetrahydropyrimido[4,5-e]l,2,4-triazine-6,8-diones (Ia-c) by amine residues on extended heating of the reagents [3]. However, the possibilities of this method are limited as a result of the low reactivity of the alkylthio group. Furthermore, as a result of the use of drastic conditions
以前,通过 3-烷硫基在 5,6,7,8-四氢嘧啶并[4,5-e]l,2,4-triazine-6,8-diones (Ia-c ) 由胺残基对试剂的延长加热 [3]。然而,由于烷硫基的低反应性,该方法的可能性受到限制。此外,在某些情况下,由于使用剧烈条件,嘧啶环 6 的破坏除了烷硫基的置换外,还会发生 [3]。