作者:Yongping Yu、John M. Ostresh、Richard A. Houghten
DOI:10.1021/jo0109366
日期:2002.5.1
solid-phase synthesis of 1,5-disubstituted 2-aryliminoimidazolidines, starting from resin-bound N-acylated amino acid amides, is described. Exhaustive reduction of resin-bound acylated amino acid amides with borane-THF afforded the corresponding disecondary amines. Further reaction with arylisothiocyanates in the presence of mercuric chloride (HgCl(2)) yielded the corresponding resin-bound 1,5-disubstituted
描述了从树脂结合的N-酰化氨基酸酰胺开始的1,5-二取代的2-芳基亚氨基咪唑烷的固相合成。用硼烷-THF彻底还原树脂结合的酰化氨基酸酰胺,得到相应的二仲胺。在氯化汞(HgCl(2))存在下,与芳基异硫氰酸酯进一步反应,得到相应的树脂结合的1,5-二取代的2-芳基亚氨基咪唑烷。在0℃下使用HF /茴香醚(95/5)从树脂上裂解产物1.5小时,从而以良好的产率和纯度得到所需产物。还讨论了此类化合物的大型组合文库的制备。