112113-57-2Relevant articles and documents
Synthesis of high-specific-radioactivity 4- and 6-[18F]fluorometaraminol- PET tracers for the adrenergic nervous system of the heart
Langer, Oliver,Dollé, Frédéric,Valette, Héric,Halldin, Christer,Vaufrey, Fran?oise,Fuseau, Chantal,Coulon, Christine,Ottaviani, Michéle,N?gren, Kjell,Bottlaender, Michel,Maziére, Bernard,Crouzel, Christian
, p. 677 - 694 (2007/10/03)
Fluorine-18 (t12:109.8min)-labeled analogues of metaraminol, 4-[18F]FMR ((1R,2S)-2-amino-1-(4-[18F]fluoro-3-hydroxy phenyl)-1-propanol) and 6-[18F]FMR ((1R,2S)-2-amino-1-(2-[18F]fluoro-5-hydroxyphenyl)-1-propanol), were synthesized as new positron-emission-tomography (PET) tracers for mapping cardiac adrenergic nerve terminals. Copyright
Preparation of 4- and 6-[76Br]bromometaraminol, two potential radiotracers for the study of the myocardial norepinephrine neuronal reuptake system with PET
Langer, Oliver,Dolle, Frederic,Loc'h, Christian,Halldin, Christer,Vaufrey, Francoise,Coulon, Christine,Crouzel, Christian,Nagren, Kjell,Maziere, Bernard
, p. 803 - 816 (2007/10/03)
Metaraminol is a norepinephrine analogue which is transported with high affinity by the uptake-1 mechanism of the sympathetic nerve terminal. Radiolabelled metaraminol and analogues are promising radiotracers to assess the integrity of the myocardial nerve system. The bromo analogues, 4- and 6-bromometaraminol, were synthesized from commercially available metaraminol bitartrate. Structural assignments were made by 2D-NMR experiments. 4- and 6-[76Br]Bromometaraminol were prepared from N-Boc-metaraminol using [76Br]NH4Br and peracetic acid as the brominating agent. The total radiochemical yield based on starting [76Br]NH4Br was 17% and 38%, non decay-corrected, for derivative 4-[76Br]bromometaraminol and 6-[76Br]bromometaraminol, respectively, in a synthesis time of 3.5 hours including the preparation of [76Br]NH4Br. The specific radioactivity obtained for both radiotracers was 130 mCi/μmol (4.8 GBq/μmol). Tissue distribution studies were performed in rats and revealed a low cardiac uptake for both derivatives. These preliminary results suggest that neither 4- nor 6-[76Br]bromometaraminol are suitable radiotracers to study the myocardial norepinephrine neuronal reuptake system with Positron Emission Tomography.