1. Department of Chemistry, Medicinal
Chemistry, University of Gothenburg, SE-412 96 Göteborg, Sweden
2. AstraZeneca R&D Mölndal, SE-431 83 Mölndal, Sweden
3. Department of Molecular Biology
and Umeå Centre for Microbial Research, Umeå University,
SE-901 87 Umeå, Sweden