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Dithiol Aryl Arsenic Compounds as Potential Diagnostic and Therapeutic Radiopharmaceuticals

Inorganic Chemistry, ISSN: 1520-510X, Vol: 55, Issue: 16, Page: 8091-8098
2016
  • 23
    Citations
  • 0
    Usage
  • 34
    Captures
  • 0
    Mentions
  • 48
    Social Media
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Metrics Details

  • Citations
    23
  • Captures
    34
  • Social Media
    48
    • Shares, Likes & Comments
      48
      • Facebook
        48

Article Description

Arsenic-72 (As) and As have nuclear properties useful for positron emission tomography (PET) and radiotherapy, respectively. The thiophilic nature of arsenic led to the evaluation of dithioarylarsines for potential use in radiopharmaceuticals. Several dithioarylarsines were synthesized from their arylarsonic acids and dithiols and were fully characterized by NMR, ESI-MS, and X-ray crystallography. This chemistry was translated to the no-carrier-added (nca) As level. Because arsenic was available at the nca nanomolar level only as [As]arsenate, this required addition of an aryl group directly to the As to form the [As]arylarsonic acid. The [As]arsenate was reduced from As (V) to As (III), and a modified Bart reaction was used to incorporate the aryl ring onto the As, which was followed by dithiol addition. Various modifications and optimizations resulted in 95% radiochemical yield of nca [As]p-ethoxyphenyl-1,2-ethanedithiolatoarsine.

Bibliographic Details

DeGraffenreid, Anthony J; Feng, Yutian; Wycoff, Donald E; Morrow, Ryan; Phipps, Michael D; Cutler, Cathy S; Ketring, Alan R; Barnes, Charles L; Jurisson, Silvia S

American Chemical Society (ACS)

Chemistry

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