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Design, synthesis, and biological evaluation of 10-methanesulfonyl-DDACTHF, 10-methanesulfonyl-5-DACTHF, and 10-methylthio-DDACTHF as potent inhibitors of GAR Tfase and the de novo purine biosynthetic pathway

  • Heng Cheng
  • , Youhoon Chong
  • , Inkyu Hwang
  • , Ali Tavassoli
  • , Yan Zhang
  • , Ian A. Wilson
  • , Stephen J. Benkovic
  • , Dale L. Boger

Research output: Contribution to journalArticlepeer-review

Abstract

The synthesis and evaluation of 10-methanesulfonyl-DDACTHF (1), 10-methanesulfonyl-5-DACTHF (2), and 10-methylthio-DDACTHF (3) as potential inhibitors of glycinamide ribonucleotide transformylase (GAR Tfase) and aminoimidazole carboxamide ribonucleotide transformylase (AICAR Tfase) are reported. The compounds 10-methanesulfonyl-DDACTHF (1, Ki = 0.23 μM), 10-methanesulfonyl-5-DACTHF (2, Ki = 0.58 μM), and 10-methylthio-DDACTHF (3, Ki = 0.25 μM) were found to be selective and potent inhibitors of recombinant human GAR Tfase. Of these, 3 exhibited exceptionally potent, purine sensitive growth inhibition activity (3, IC 50 = 100 nM) against the CCRF-CEM cell line being 3-fold more potent than Lometrexol and 30-fold more potent than the parent, unsubstituted DDACTHF, whereas 1 and 2 exhibited more modest growth inhibition activity (1, IC 50 = 1.0 μM and 2, IC50 = 2.0 μM).

Original languageEnglish (US)
Pages (from-to)3577-3585
Number of pages9
JournalBioorganic and Medicinal Chemistry
Volume13
Issue number10
DOIs
StatePublished - May 15 2005

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Medicine
  • Molecular Biology
  • Pharmaceutical Science
  • Drug Discovery
  • Organic Chemistry
  • Clinical Biochemistry

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