Improved Stereoselectivity in Intramolecular S<sub>N</sub>2′ Cyclization through Use of Mechanistic Principles
作者:Ki Park、Woo Seo、Marcus Curtis-Long、Seong Jeong、Tae Jun、Min Yang
DOI:10.1055/s-2006-958956
日期:2007.1
Valine and alanine were converted into the corresponding α-hydroxy-β-amino acids through intramolecular S N 2' cyclization. The novel cyclization protocol relied upon the use of N-benzyl-protected carbamates derived from α-amino acids.