Catalytic, Enantioselective Formal Synthesis of Monoterpene Indole Alkaloid (−)-Alstoscholarine
作者:Jian-Neng Yao、Xiao Liang、Kun Wei、Yu-Rong Yang
DOI:10.1021/acs.orglett.9b03319
日期:2019.10.18
catalytic, enantioselective formal synthesis of monoterpene indole alkaloid (−)-alstoscholarine is described. The synthesis employs an Ir-amine dual catalyzedasymmetric allylation of aldehyde 8 with 3-indolyl vinyl carbinol derivative 7 to furnish chiral aldehyde 6 as a key asymmetric step. Other key reactions include the construction of the 2-ketopyrrole moiety by Nicolaou’s method and Tf2O promoted Pictet–Spengler