1. The School of Chemistry and
Molecular Biosciences, The University of Queensland, Brisbane 4072, Queensland, Australia
2. Institute of Organic Chemistry
and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i. Flemingovo nám. 2, CZ-166 10 Prague 6, Czech Republic
3. Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat
10, B-3000 Leuven, Belgium
4. Australian Army Malaria Institute, Enoggera, Brisbane, Queensland 4051,
Australia