作者:James D. Firth、Peter O’Brien、Leigh Ferris
DOI:10.1021/acs.joc.7b00913
日期:2017.7.7
stage medicinal chemistry studies, a simple, general synthetic approach is required. Here, we report the development of two general and simple procedures for the racemic lithiation/trapping of N-Boc piperazines. Optimum lithiation times were determined using in situ IR spectroscopy, and the previous complicated and diverse literature procedures were simplified. Subsequent trapping with electrophiles
为了提供用于早期药物化学研究的α-取代的哌嗪,需要一种简单的通用合成方法。在这里,我们报告了N- Boc哌嗪的外消旋锂化/捕获的两种通用和简单程序的开发。使用原位红外光谱确定了最佳锂化时间,并简化了先前复杂多样的文献程序。随后用亲电试剂进行捕集,得到了多种α-官能化的N - Boc哌嗪。研究了远端N-组的范围和局限性。报道了通过锂化/ Negishi偶联的N- Boc哌嗪的选择性α-和β-芳基化。