1. Department of Chemistry-Ångström Laboratory Uppsala University Box 523, 751 20 Uppsala Sweden
2. Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo námĕstí 2 16610 Prague 6 Czech Republic
3. Medicinal Chemistry Research and Early Development Cardiovascular Renal and Metabolism BioPharmaceuticals R&D, AstraZeneca Gothenburg Sweden