Total syntheses of naturally occurring antiviral indolosesquiterpene alkaloids, xiamycins C–F <i>via</i> Csp<sup>3</sup>–H functionalization
作者:Mintu Munda、Rhituparna Nandi、Vipin R. Gavit、Sourav Kundu、Sovan Niyogi、Alakesh Bisai
DOI:10.1039/d2sc03479d
日期:——
Concise total syntheses of naturally occurring antiviral indolosesquiterpene alkaloids, xiamycin C (2a), D (2b), E (2c) and F (2d), have been achieved via a late-stage oxidative δ-Csp3–H functionalization of an advanced pentacyclic enone intermediate 8. This strategy takes advantage of ipso-nitration of naturally occurring abietane diterpenoids to synthesize o-bromo nitroarene derivative 11. A Suzuki–Miyaura