Dr. Brita WernerOC Practical CoursesOCAddressUniversity of HamburgDepartment of ChemistryInstitute of Organic ChemistryMLKP6 Geb. OC/g11a20146 HamburgContactTel: +49 40 42838-6719Fax: +49 40 42838-5592Email: Brita.Werner"AT"chemie.uni-hamburg.de