作者:Qingwei Lv、Caizhu Chang、Yong Li、Yuguo Du、Jun Liu
DOI:10.1016/j.tet.2020.131290
日期:2020.6
An efficient stereoselectivesynthesis of (−)-protulactone A was established in 9 steps and 14.7% overall yields using d-mannose as starting material. The key steps of our synthesis involved one-pot deprotection/lactonization/Michael addition reaction/acetalization and 1, 3-chelated controlled stereoselective addition.