Total synthesis of (–)-negamycin from a chiral advanced epoxide
作者:Cheng-Kun Lin、Po-Yu Tseng
DOI:10.1080/00397911.2022.2153339
日期:2023.1.17
Abstract A concise route for the totalsynthesis of (–)-negamycin is described. Key point features (a) Cu-mediated ring-opening reaction of the advanced epoxide with vinyl magnesium chloride leads to the introduction of the carboxyl synthon; (b) Consecutive placement of diamino groups via azides was designed, including an unexpected cleavage of the silyl protecting group; (c) removal of four hydrogenolytically