A series of N-hydroxyamino acids and their esters (9a, b, d-k) coupled with N-hydroxyglycinamide (9c) were synthesized through facile preparations of N-furfurylidenealkoxy (and hydroxy) carbonylalkylamine N-oxides (7a, b, d-g) and N-furfurylidenecarbamoylmethylamine N-oxide (7c) followed by hydrolysis. The method was applied to the syntheses of emimycin (1) and hadacidin monosodium salt (2b).
一系列N-羟基
氨基酸及其
酯(9a,b,d-k),以及N-羟基甘
氨酰胺(9c),通过简便制备N-糠叉基烷
氧基(和羟基)羰基烷基胺N-
氧化物(7a,b,d-g)和N-糠叉基
氨基甲酰
甲胺N-
氧化物(7c),随后进行
水解反应合成得到。该方法应用于艾米霉素(1)和哈达酸单
钠盐(2b)的合成。