1. Faculty
of Chemistry, Bielefeld University, Universitätsstr. 25, 33615 Bielefeld, Germany
2. Institute
of Molecular Enzyme Technology, Jülich Research Center, Heinrich-Heine-University Düsseldorf, Stetternicher Forst, 52426 Jülich, Germany
3. Sandoz International GmbH, Industriestr.
18, 83607 Holzkirchen, Germany
4. Sandoz Industrial Products GmbH, Brüningstraße 50, 65929 Frankfurt am Main, Germany