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Updated: Aug 20, 2025

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Published on: August 22, 2018
An intramolecular hydrogen bond-promoted "green" Ugi cascade reaction for the synthesis of 2,5-diketopiperazines with
Jie Li1, Jiu Hong Huang1, Jing Ya Wang1
1College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences Chongqing 402160 China.
Abstract:
We report a "green chemistry"-based Ugi cascade reaction to furnish a series of 2,5-diketopiperazines (through nucleophilic attack of amides upon ketones in Ugi adducts) at moderate-to-good yields. Investigation with the MTT assay revealed compound (±) 5c to exhibit potent anticancer activities against acute myeloid leukaemia (MV411; IC50 = 1.7 μM) and acute T lymphocyte leukaemia (Jurkat; IC50 = 5.7 μM) cell lines.
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