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April 4, 2026Synthesis

The Modification of α-Aminophosphonates by Diastereoselective N-Alkenylation

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Authors

CBCintia BeseJCJoris ChevillardÁBÁgnes Boskó

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Overview

Experimental work demonstrates diverse α-aminophosphonates show cytotoxic effects in myeloma cells, suggesting further study is needed.

Key Points

  • This work aims to synthesize new α-aminophosphonates and evaluate their biological activity.
  • Synthesis of α-alkylamino-and α-amino-arylmethylphosphonates using N-alkenylation with dialkyl acetylenedicarboxylates.
  • Reactions performed at 26 °C with diazabicycloundecene (DBU) catalyst for diastereoselective outcomes.
  • Analysis of products via NOESY and ROESY NMR measurements to determine isomer formation.
  • Testing of the new compounds for cytotoxic activity on a myeloma cell line.
  • Successful diastereoselective formation of the E isomer with α-alkylamino-phosphonates in the presence of DBU.
  • Formation of a mixture of E and Z isomers when using α-aminophosphonates with an NH2 group.
  • Irradiation or prolonged stirring without a catalyst favored the formation of the Z isomer.
  • New derivatives showed no antiproliferative effect on myeloma cells.

Cite This Study

Bese et al. (2026) studied this question.

synapsesocial.com/papers/69d0afb4659487ece0fa5c72https://doi.org/10.1055/a-2848-8959
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Also Consider

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  1. 1Stereoselective Synthesis of α-Aminophosphonates and Their Derivatives via Asymmetric α-Azidation of the CAMDOL-Derived Phosphonates2025
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  3. 3Deoxygenative Nucleophilic Phosphonation and Electrophilic Alkylation of Secondary Amides: A Facile Access to Quaternary α-Aminophosphonates2024 · 11 citations
  4. 4The Synthesis of α-Hydroxy-Alkylphosphonate Derivatives and Evaluation of Their Cytotoxic Activity2026
  5. 5The Synthesis of Nonsymmetric α‐hydroxy‐ethylidenebisphosphonic Derivatives by the Pudovik Reaction, Their Reactions, and Cytotoxic Activity2025