作者:Li Guo、Weicheng Zhang、Ilia A. Guzei、Lara C. Spencer、Samuel H. Gellman
DOI:10.1021/ol3008815
日期:2012.5.18
An asymmetric synthesis of two new diastereomeric γ-amino acids is described. Both molecules contain a cyclohexyl ring to limit conformational flexibility about the Cα–Cβ bond; they differ in having cis vs trans stereochemistry on the ring. Residues derived from the cis γ isomer are shown to support helical secondary structures in α/γ-peptide oligomers.
描述了两种新的非对映体 γ-氨基酸的不对称合成。两个分子都包含一个环己基环以限制 C α -C β键的构象灵活性;它们的不同之处在于环上的顺式与反式立体化学。来自顺式γ 异构体的残基显示支持 α/γ-肽寡聚体中的螺旋二级结构。