[11C]Enzastaurin, the first design and radiosynthesis of a new potential PET agent for imaging of protein kinase C

Min Wang, Lu Xu, Mingzhang Gao, Kathy D. Miller, George W. Sledge, Qi Huang Zheng

Research output: Contribution to journalArticle

9 Scopus citations


Enzastaurin (LY317615) is a potent and selective protein kinase C (PKC) inhibitor with an IC50 value of ∼6 nM. [11C] Enzastaurin (3-(1-[11C]methyl-1H-indol-3-yl)-4-[1-[1-(2- pyridinylmethyl)-4-piperidinyl]-1H-indol-3-yl]-1H-pyrrole-2,5-dione), a new potential PET agent for imaging of PKC, was first designed and synthesized in 20-25% decay corrected radiochemical yield and 370-555 GBq/μmol specific activity at end of bombardment (EOB). The synthetic strategy was to prepare a carbon-11-labeled maleic anhydride intermediate followed by the conversion to maleimide.

Original languageEnglish (US)
Pages (from-to)1649-1653
Number of pages5
JournalBioorganic and Medicinal Chemistry Letters
Issue number6
StatePublished - Mar 15 2011



  • [C]Enzastaurin
  • Alzheimer's disease
  • Cancer
  • Positron emission tomography (PET)
  • Protein kinase C (PKC)
  • Radiosynthesis

ASJC Scopus subject areas

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

Cite this