Paterson Ian, Ashton Kate, Britton Robert, Cecere Giuseppe, Chouraqui Gaëlle, Florence Gordon J, Stafford Jonathan
University Chemical Laboratory, Lensfield Road, Cambridge, CB2 1EW, UK.
Angew Chem Int Ed Engl. 2007;46(32):6167-71. doi: 10.1002/anie.200702178.