A two-step, one-pot synthesis of diverse N-pyruvoyl amino acid derivatives using the Ugi reaction
摘要:
A 100-member combinatorial library of alpha -ketoamides, which was designed to search potent cysteine protease inhibitors, was generated by a parallel solution-phase synthesis. A two-step one-pot synthesis, in which the Ugi reaction followed by pyridinium dichromate (PDC) oxidation was employed in the same reaction vessel, easily afforded the alpha -ketoamides in a short time. (C) 2000 Elsevier Science Ltd. All rights reserved.