Stereodivergent Total Syntheses of Precoccinelline, Hippodamine, Coccinelline, and Convergine
摘要:
[GRAPHICS]A stereodivergent approach toward total syntheses of Coccinellidae defensive alkaloids is described. These syntheses feature a highly diastereoselective intramolecular aza-[3 + 3] annulation strategy, which represents a de novo approach to this family of natural products.
Combining two-directional synthesis and tandem reactions: an efficient strategy for the total syntheses of (±)-hippodamine and (±)-epi-hippodamine
作者:Martin Rejzek、Robert A. Stockman、David L. Hughes
DOI:10.1039/b413052a
日期:——
Two-directional total stereoselective syntheses of (+/-)-hippodamine and (+/-)-epi-hippodamine, utilising a tandem deprotection/intramolecular double Michael addition sequence as the key step, are presented.