1. Institute of Organic Chemistry and Center of Molecular Biosciences; University of Innsbruck; Innrain 80/82 6020 Innsbruck Austria
2. Institute of General, Inorganic & Theoretical Chemistry and Center of Molecular Biosciences; University of Innsbruck; Innrain 80/82 6020 Innsbruck Austria
3. Bioinformatics Institute; Agency for Science, Technology & Research; 30 Biopolis Street 138671 Singapore Singapore
4. Laboratory of Organic Chemistry; ETH Zürich; Vladimir-Prelog-Weg 3 8093 Zürich Switzerland