https://pmc.ncbi.nlm.nih.gov/articles/PMC2917892/
Solid-Phase Synthesis of N-Substituted Pyrrolidinone Tethered N-substituted Piperidines via Ugi...
Starting with resin-bound glutamic acid, an efficient synthesis of N-substituted pyrrolidinones is described utilizing the Ugi four-component reaction (U-4CR)....
solid phase synthesissubstitutedpyrrolidinonetetheredpiperidines
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