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. Author manuscript; available in PMC: 2017 Sep 19.
Published in final edited form as: Chem Commun (Camb). 2013 May 14;49(50):5621–5629. doi: 10.1039/c3cc42236d

Fig. 1.

Fig. 1

Cyclotron produced [11C]CO2has been recently applied to radiolabelling of structurally complex carboxylic acids and amides, carbamates, oxazolidinones, and ureas. *Trapping is typically done with molecular sieves or liquid nitrogen and release Is achieved by heating.