Affiliation: | 1. Institut für Organische Chemie, Universit?t Leipzig, Johannisallee 29, 04103 Leipzig, Germany, Fax: (+49)?341‐973‐6599;2. Department of Biochemistry, University of Kuopio, Yliopiostonranta 1E, 70210 Kuopio, Finland;3. Department of Organic Chemistry, University of Natural Sciences, Ho Chi Minh City, 227 Nguyen Van Cu, District 5, HCMC, Vietnam |