title: Enantioselective Ribozyme Catalysis of a Bimolecular Cycloaddition Reaction This work was supported by the Deutsche Forschungsgemeinschaft (Grant no.: Ja 794/3-1) and the Bundesministerium für Bildung und Forschung (Grant no.: BEO 0311861). We thank Dr. S. Klußmann and Dr. S. Vonhoff (Noxxon Pharma AG, Berlin) for the synthesis of the L-ribozyme.
authors.affiliation: Freie Universität Berlin FB Biologie, Chemie und Pharmazie, Institut für Chemie Thielallee 63, 14195 Berlin (Germany).
authors.forename: Burckhard
authors.initials: B
authors.lastname: Seelig
authors.forename: Sonja
authors.initials: S
authors.lastname: Keiper
authors.forename: Friedrich
authors.initials: F
authors.lastname: Stuhlmann
authors.forename: Andres
authors.initials: A
authors.lastname: Jäschke