Pyrrolidinones derived from (S )-pyroglutamic acid. Part 1. Conformationally constrained glutamate
作者:Jonathan H. Bailey、David T. Cherry、James Dyer、Mark G. Moloney、Mark J. Bamford、Steve Keeling、R. Brian Lamont
DOI:10.1039/b001999m
日期:——
Novel conformationally constrained pyroglutaminols and pyroglutamates are readily available using an α,β-unsaturated bicyclic lactam as a template for diastereocontrolled enolate additions in the key step; zinc enolates are particularly effective in this regard. The bicyclic ring system both controls and permits the determination of ring stereochemistry. The utility of this methodology is demonstrated by a formal total synthesis of the NMDA receptor agonist, CPAA 11.