An ultra-broad spectrum carbapenem, J-114,870 (1), was synthesized from the
corresponding C-2 side chain and 1 beta-methyl carbapenem enolphosphate. S
ynthesis of the C-2 side chain was accomplished by installation of the benz
ene part to (4R)-hydroxy-2-pyrrolidone 3, affording 2-phenylpyrrolidine 8a,
and asymmetric Michael addition of chiral amine to alpha,beta-unsaturated
ester derived from 8a. (C) 2000 Elsevier Science Ltd. All rights reserved.