A stereocontrolled approach to 1β-methylcarbapenem
Davies SG., Hedgecock CJR., McKenna JM.
Conjugate addition of lithium N-allyl-N-α-methylbenzylamide to chiral α,β-unsaturated esters is subject to double stereodifferentiation, the mismatched pair reaction allowing access to an intermediate for 1β-methylcarbapenem synthesis. © 1995.