Abstract 2,5-Diketopiperazines were prepared and characterized where one of the amino acids is (2S,3R,4R,5S)-3,4,5-trihydroxypipecolic acid. The protected pipecolic acid was synthesized from a selectively protected deoxynojirimycin derivative. The ring closure to give the diketopiperazines, from the dipeptides, was performed by nucleophilic attack of the amino function of the pipecolic acid moiety
摘要 制备并表征了其中一种
氨基酸是 (2S,3R,4R,5S)-3,4,5-三羟基
哌啶酸的 2,5-二酮
哌嗪。受保护的哌可酸由选择性受保护的脱氧
野尻霉素衍
生物合成。由二肽产生二酮
哌嗪的闭环是通过哌可酸部分的
氨基官能团对甲酯的羰基的亲核攻击来进行的。图形概要