A two??step one??pot radiosynthesis of the potent dopamine D2/D3 agonist PET radioligand [11C] MNPA

C Steiger, SJ Finnema, L Raus, M Schou…

Index: Steiger; Finnema; Raus; Schou; Nakao; Suzuki; Pike; Wikstroem; Halldin Journal of Labelled Compounds and Radiopharmaceuticals, 2009 , vol. 52, # 5 p. 158 - 165

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Citation Number: 8

Abstract

Abstract (R)-(−)-2-[11 C] Methoxy-Nn-propylnorapomorphine ([11 C] MNPA ([11 C] 2)) is an agonist radioligand of interest for imaging D 2/D 3 receptors in vivo. Here we sought to develop an improved radiosynthesis of this radioligand. Reference 2 was synthesized in nine steps with an overall yield of about 5%, starting from codeine. Trimethylsilyldiazomethane proved to be a practical improvement in comparison to ...