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Tritium ( 3 H) NMR spectra of a number of compounds prepared via metal-catalyzed H/T reduction/ exchange of unsaturated hydrocarbons are presented. These show the considerable benefits that emerge from using a tritium cryo-probe.

Meeting ProgrammeDr Nigel Botting [University of St Andrews, UK] – Isotopic Labelling of Lignan Phytoestrogens.Prof. Frédéric Dollé [CEA PET Centre, Orsay, France] – Fluorine‐18 Chemistry: A Selection of Recent Advances.Prof. Peter Scott [University of Warwick, UK] – Creating Chiral Metal Centres.Mr Laurent Brichard [WBIC, University of Cambridge, UK] – A Simple Device for the Radiosynthesis of [Carbonyl‐11C]amides, Esters and Ketones using Carbon‐11 Monoxide.Dr Michael Hickey [AstraZeneca Charnwood, UK] – Tritium‐labelling via an Iridium‐based Solid‐phase Catalyst.Prof. Wolfgang Steglich [Ludwig‐Maximilians University, Germany] – Meroterpenoids from Mushrooms, A Colourful Group of Natural Products.Dr Joe Schofield [Sanofi‐Aventis, France] – Radio‐ and Stable‐isotope Labelling of SSR591813 – A Nicotinic Partial Agonist.Dr Nikolai Kuhnert [University of Surrey, UK] – Chiral Recognition in Ion Trap Mass Spectrometry using Isotopically Labelled Trianglamine Macrocycles.Dr Paul Watts [University of Hull, UK] – The Application of Micro Reactors for Radiochemical Synthesis.Dr Tony Gee [GlaxoSmithKline, UK] – PET in Drug Discovery and Development.Dr Alan Wadsworth [GlaxoSmithKline, UK] – Stable Isotopic Labelling of Heterocyclic Compounds

). The subsequent scientific programme consisted of oral and poster presentations on isotopic chemistry and applications of labelled compounds, or of chemistry with potential implications for isotopic synthesis. Both short-and long-lived isotopes were represented, as were stable isotopes. The symposium programme was divided into a morning and afternoon session