摘要:
Enzastaurin (LY317615) is a potent and selective protein kinase C (PKC) inhibitor with an IC50 value of similar to 6 nM. [C-11] Enzastaurin (3-(1-[C-11] 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/mu mol 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. (C) 2011 Elsevier Ltd. All rights reserved.