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. 2010 Apr 13;15(4):2686–2718. doi: 10.3390/molecules15042686

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© 2010 by the authors;

licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Scheme 9 — Synthesis of the reference compound morpholino-IPQA, precursor A and radiolabeling: a) EDC, HCl, DMAP, DMF b) EDC, HCl, HOBt, CH₂Cl₂ c) [¹²⁴I]NaI, NaOH, MeOH, H₂O₂/HOAc (1:3), 1 min vortex, 2 min room temperature.