申请人:University of Florida Research Foundation, Inc.
公开号:US05493053A1
公开(公告)日:1996-02-20
A new and versatile route to N'-[5-[[4-[[5-(acetylhydroxyamino)pentyl]amino]-1,4-dioxobutyl]hydroxyamin o]pentyl]-N-(5-aminopentyl)-N-hydroxybutanediamide, desferrioxamine B (DFO) is described. N-Benzyloxy-1,5-diaminopentane is selectively protected at the primary amino site. The product is reacted at the benzyloxyamine with an anhydride to produce a carboxylic acid which is, in turn, acylated regio-specifically with a diamine at the primary amine to give a benzyloxyamine. The previous two steps are repeated to afford a DFO reagent. Acetylation of the DFO reagent, followed by hydrogenolysis and tert-butoxycarbonyl group removal, furnishes DFO.
本文介绍了一种新的多功能途径,用于制备N'-[5-[[4-[[5-(乙酰羟胺基)戊基]氨基]-1,4-二氧戊基]羟胺基]戊基]-N-(5-氨基戊基)-N-羟基丁二酰胺,即去铁胺B(DFO)。选择性保护N-苯甲氧基-1,5-二氨基戊烷的主要氨基官能团,然后在苯甲氧胺基处与酸酐反应,产生一个羧酸,再以另一种二胺在主要胺基位置上进行区域特异性的酰化,从而得到一个苯甲氧胺基。重复前两个步骤,以制备DFO试剂。对DFO试剂进行乙酰化处理,随后进行氢解和叔丁氧羰基基团去除,即可得到DFO。