作者:Matthias Breuning、Melanie Steiner
DOI:10.1055/s-2006-926419
日期:2006.4
(R)-Homopipecolic acid methyl ester has been prepared on a multigram scale from 3,4-dihydro-2H-pyran in five steps and 36% overall yield. The stereochemistry was introduced via an asymmetric Michael addition and a fractional crystallization.
(R)-高哌啶酸甲酯已由 3,4-二氢-2H-吡喃以 5 步和 36% 的总产率以多克规模制备。通过不对称迈克尔加成和分级结晶引入立体化学。