10.1071/CH17334_AC CSIRO 2018 Australian Journal of Chemistry 2018, 71(2 & 3), 81-86 SUPPLEMENTARY MATERIAL A Novel Strategy to Introduce 18 F Positron Emitting Radionuclide in Gallium Nitrate Complex: Synthesis, NMR, X-Ray Crystal Structure, and Preliminary Studies on Radiolabelling with 18 F Taracad K. Venkatachalam, A,C Paul V. Bernhardt, B Damion H. R. Stimson, A Gregory K. Pierens, A Rajiv Bhalla, A and David C. Reutens A A Center for Advanced Imaging, The University of Queensland, Brisbane, Qld 4072, Australia. B School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Qld 4072, Australia. C Corresponding author. Email: [email protected]
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10.1071/CH17334_AC
CSIRO 2018
Australian Journal of Chemistry 2018, 71(2 & 3), 81-86
SUPPLEMENTARY MATERIAL
A Novel Strategy to Introduce 18F Positron Emitting Radionuclide in Gallium Nitrate
Complex: Synthesis, NMR, X-Ray Crystal Structure, and Preliminary Studies on
Radiolabelling with 18F
Taracad K. Venkatachalam,A,C Paul V. Bernhardt,B Damion H. R. Stimson,A Gregory K.
Pierens,A Rajiv Bhalla,A and David C. ReutensA
ACenter for Advanced Imaging, The University of Queensland, Brisbane, Qld 4072, Australia. BSchool of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Qld
gallium fluoride complex (Note the change in the chemical shift values for the NH and one of the
ortho protons of the phenyl ring. Other tall peaks are due to residual methanol/H2O solvent
signals.)
1H NMR spectrum of 19F exchanged with compound 2.
Radio HPLC of exchange of nitrate complex of symmetrical diethyl diphenyl dithiosemicarbazone gallium (Compound 2) to the corresponding 18F complex (note: the peak at 22.5 minutes represents the radiolabeled product.
HPLC profile for UV trace during exchange reaction of nitrate to 18F in gallium complex. (the UV peak of the 18F substituted compound is buried under the nitrate compound at 22.5 minutes).
Radio and UV trace after exchange with 18F (the largest peak at 2 minutes is due to free 18F-
HPLC radio chromatogram for exchange of 18F with unsymmetrical methyl-ethyl-diphenyl-