Journal
PEST MANAGEMENT SCIENCE
Volume 78, Issue 2, Pages 399-408Publisher
JOHN WILEY & SONS LTD
DOI: 10.1002/ps.6653
Keywords
fungicides; herbicides; insecticides; natural products; natural product-based crop protection compounds; innovation in crop protection compound discovery; agrochemicals
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Natural products (NPs) have been a significant source and inspiration for developing novel crop protection compounds, with NPs, their derivatives, and compounds inspired by NPs accounting for 17% of all crop protection compounds. The impact of NPs on the discovery of new modes of action and innovation in crop protection compounds has been consistent over the past 70 years. NPs have had the largest impact on insecticides compared to fungicides and herbicides.
Natural products (NPs) have long been an important source of, and inspiration for, developing novel compounds to control weeds, pathogens and insect pests. In this review, we use a dataset of 800 historic, current and emerging crop protection compounds to explore the influence of NPs on the introduction of new crop protection compounds (fungicides, herbicides, insecticides) as a function of time. NPs, their semisynthetic derivatives (NPDs) and compounds inspired by NPs (NP mimics, NPMs) account for 17% of all crop protection compounds. NPs, NPDs, and NPMs have been a fairly constant source of new agrochemicals over the past 70 years. NP synthetic equivalents (NPSEs) is a fourth group of NP-related crop protection compounds composed of synthetic compounds which by chance also happen to have an NP model (but are not involved in the discovery). If NPSE compounds are also included, then 50% of all crop protection compounds hypothetically could have had a NP origin. Similar trends also hold true for the impact of NPs on the discovery of new modes of action (MoA) or innovation in crop protection compounds as measured by the number of first-in-class compounds. NPs have had the largest impact on the numbers and global sales (2018 USD) of insecticides compared to fungicides and herbicides. The present analysis highlights NPs as a long-standing and continuing source of new chemistry, new MoAs and innovation in crop protection compound discovery. (c) 2021 Society of Chemical Industry.
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