Total Synthesis of (+)-Aloperine. Use of a Nitrogen-Bound Silicon Tether in an Intramolecular Diels−Alder Reaction
作者:Arthur D. Brosius、Larry E. Overman、Lothar Schwink
DOI:10.1021/ja983013+
日期:1999.2.1
The central element of the synthetic strategy is an intramolecularDiels−Alderreaction in which the cycloaddends are tethered by a N-silylamine linkage. The total synthesis of 1 proceeds from commercially available 3-hydroxypiperidine hydrochloride (54) and (R)-pipecolinic acid (35) by way of nine isolated and purified intermediates. The synthesis is sufficiently efficient that gram quantities of (+)-aloperine