Dehydrooligopeptides. XVII. Practical Syntheses of All of the Diastereomers of<i>N</i>,<i>N</i>-Protected 2,3-Diaminobutanoic Acids from L- and D-Threonine Derivatives
作者:Yutaka Nakamura、Miki Hirai、Kenji Tamotsu、Yasuchika Yonezawa、Chung-gi Shin
DOI:10.1246/bcsj.68.1369
日期:1995.5
Syntheses of all of the diastereomers of 2,3-diaminobutanoic acids, found in some peptide antibiotics and toxins, were accomplished. The four isomers were derived mainly through two pathways including SN2 inversions of the β-substituent of L- or D-threonine derivatives. The various protecting groups and effective nucleophiles for the SN2 inversion were examined.
在某些肽抗生素和毒素中发现的所有 2,3-二氨基丁酸的非对映异构体的合成都已完成。这四种异构体主要通过两种途径衍生,包括 L-或 D-苏氨酸衍生物的 β-取代基的 SN2 反转。检查了用于 SN2 反转的各种保护基团和有效的亲核试剂。