Due to the specificity of expression of PSMA (prostate specific membrane antigen) particularly in prostate cancer cells (e.g. LNCaP), numerous PSMA ligands have been synthesized until now. In the current study, we synthesized DUPA-Pep having 2-[3-(1,3-dicarboxypropyl)ureido]pentanedioic acid (DUPA) linked via 8-aminooctanoic acid to two phenylalanine residues and chose 6-[F-18]fluoronicotinic acid 2,3,5,6-tetrafluorophenyl ester [F-18]FPy-TFP as a prosthetic group for coupling. [F-18]FPy-DUPA-Pep was obtained in a radiochemical yield of 48 +/- 0.9% (decay uncorrected) within 50 min with a chemical purity of > 98%. (C) 2011 Elsevier Ltd. All rights reserved.
机构:
City Hope Natl Med Ctr, Beckman Res Inst, Duarte, CA 91010 USA
City Hope Natl Med Ctr, Div Immunol, Duarte, CA 91010 USAUniv Tubingen, Dept Radiol, Werner Siemens Fdn, Lab Preclin Imaging & Imaging Technol, D-72076 Tubingen, Germany
机构:
City Hope Natl Med Ctr, Beckman Res Inst, Duarte, CA 91010 USA
City Hope Natl Med Ctr, Div Immunol, Duarte, CA 91010 USAUniv Tubingen, Dept Radiol, Werner Siemens Fdn, Lab Preclin Imaging & Imaging Technol, D-72076 Tubingen, Germany