The synthesis of a D-allo-5-(azidomethyl)tetrahydrofuran-2-carboxylate as an amino acid precursor (in which the carboxylic acid is cis to the azidomethyl substituent and trans to the diol moiety) is reported from D-ribose. The oligomerisation of this monomer to dimeric, tetrameric and octameric carbopeptoids is described. NMR studies into the solution structures of cyclohexylidene-protected oligomers and of a deprotected tetramer with eight free hydroxy groups are described.
报道了一种D-allo-5-(
叠氮甲基)
四氢呋喃-2-
羧酸酯的合成,该化合物作为
氨基酸前驱体(其
羧酸与
叠氮甲基取代基为顺式,与二醇部分为反式)。文中描述了该单体的寡聚化,生成二聚体、四聚体和八聚体的碳肽类化合物。同时,对
环己烯基保护的寡聚体和一个解保护的四聚体(具有八个自由羟基)在溶液中的结构进行了NMR研究。