caa a22 4500 445870036 CHVBK 20180317145508.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s11101-010-9168-y doi (NATIONALLICENCE)springer-10.1007/s11101-010-9168-y Hüter Ottmar Syngenta Crop Protection Münchwilen AG, Schaffhauserstrasse, WST-820.1.15, 4332, Stein, Switzerland aut Use of natural products in the crop protection industry [Elektronische Daten] [Ottmar Hüter] Nature is a rich source of compounds exhibiting biological activity against weeds, plant diseases, insects and mites. Many of these natural products have complex structures, insufficient biological activity and low persistence under field conditions. Thus the share of natural products being used as active ingredients per se in today's crop protection market is relatively small. In some cases the natural products have been further modified to provide semi-synthetic derivatives with improved biological properties. More importantly, natural products served as lead structures inspiring chemists to prepare new synthetic analogues with often improved biological activity, simplified structures, increased safety towards humans and the environment and an optimized persistence. This article is not an extensive review of natural products in crop protection, but it discusses some examples illustrating the use of natural products per se, their use as starting materials to prepare semi-synthetic products, and their use as lead structures to prepare new synthetic products which may in the end bear no resemblance to the initial lead. Springer Science+Business Media B.V., 2010 Acaricides nationallicence Fungicides nationallicence Herbicides nationallicence Insecticides nationallicence Lead structures nationallicence Phytochemistry Reviews Springer Netherlands 10/2(2011-06-01), 185-194 1568-7767 10:2<185 2011 10 11101 https://doi.org/10.1007/s11101-010-9168-y text/html Onlinezugriff via DOI 1 review-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11101-010-9168-y text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Hüter Ottmar Syngenta Crop Protection Münchwilen AG, Schaffhauserstrasse, WST-820.1.15, 4332, Stein, Switzerland aut NATIONALLICENCE 773 0- Phytochemistry Reviews Springer Netherlands 10/2(2011-06-01), 185-194 1568-7767 10:2<185 2011 10 11101 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer