The solid-phase synthesis of individual 1,3-disubstituted and 1,3,5-trisubstituted-1,3,5-triazine-2,4,6-triones and libraries thereof from a resin is described. Reaction of resin-bound amino acids with isocyanates yields resin-bound ureas, which further react with chlorocarbonyl isocyanate to selectively afford the resin-bound 1,3-disubstituted-1,3,5-triazine-2,4,6-triones. Selective alkylation at the N-5 position of the resin-bound 1,3-disubstituted-1,3,5-triazine-2,4,6-triones produces a trisubstituted triazinetrione. The products are cleaved from their solid support and obtained in good yield and purity.
介绍了从
树脂中固相合成单个 1,3-二取代和 1,3,5-三取代-
1,3,5-三嗪-2,4,6-三酮及其化合物库的方法。与
树脂结合的
氨基酸与
异氰酸酯反应生成与
树脂结合的
脲,再与异
氰酸氯羰基酯反应选择性地生成与
树脂结合的 1,3-二取代-
1,3,5-三嗪-2,4,6-三酮。在
树脂结合的 1,3-二取代-
1,3,5-三嗪-2,4,6-三酮的 N-5 位进行选择性烷基化,可生成三取代三嗪三酮。这些产物可从其固体支持物中裂解出来,产量和纯度都很高。