1. INRA—UMR FARE 614, 8, rue Gabriel Voisin, BP 316, 51688 Reims cedex 2, France, Novozymes A/S, Krogshøjvej 36, DK-2880 Bagsvaerd, Denmark, and Department of Medicinal Chemistry, Faculty of Pharmaceutical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark