作者:Emil Lindbäck、Óscar López、José G. Fernández-Bolaños、Stephan P. A. Sauer、Mikael Bols
DOI:10.1021/ol200942g
日期:2011.6.3
(3R,4R,5R)-2-Imino-3,4-dihydroxy-5-hydroxymethylpiperidine hydrocloride or Isofagomidine was synthesized from D-arabinose in 12 steps and an overall yield of 9.9%. The synthesis proceeded by introduction of an aminomethyl group In the 4-position of D-arabinose and conversion of C-1 into a nitrile. The key step in the synthesis was a copper-catalyzed cyclization of aminonitrile to amidine. Isofagomidine was a potent alpha-mannosidase inhibitor (K-i = 0.75 mu M).
(3R,4R,5R)-2-亚氨基-3,4-二羟基-5-羟甲基哌啶盐酸盐(或Isofagomidine)从D-阿拉伯糖出发,通过12步反应,总收率为9.9%成功合成。合成过程中首先在D-阿拉伯糖的4位引入氨基甲基,随后将C-1位转化为腈基。合成的关键步骤是通过铜催化的氨基腈到脒键的环化反应。Isofagomidine是一种强效的α-甘露糖苷酶抑制剂(K_i=0.75μM)。