The camphor-derived tetrahydropyran (camTHP*)-desymmetrized glycinamide 1 undergoes efficient and highly diastereoselective lithium enolate Michael additions to nitro olefins, alpha,beta-unsaturated ketones, esters, and lactones. Straightforward manipulation of these products affords 3-substituted pyroglutamides and beta-aryl-alpha,gamma-diamino acid derivatives, highlighting the ease of synthesis of enantiomerically enriched, functionally dense molecules using this novel building block.
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