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Diastereoselective aza-Michael additions of phenylethylamine to 3-aroylbutenoic acids are reported. During these processes, efficient control over two new stereogenic centers on the Michael acceptor has been possible via crystallization-induced asymmetric transformation (CIAT). As an application, a convenient two-step synthesis of anti-beta-methylhomophenylalanines is also described.
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http://dx.doi.org/10.1039/b613103d | DOI Listing |
Sci Rep
May 2025
Department of International Cooperation Research Institute of Organic Agriculture, FiBL, Frick, Switzerland.
Horse gram (Macrotyloma uniflorum (Lam.) Verd.) is an underutilised legume from the Indian subcontinent.
View Article and Find Full Text PDFAmbio
April 2025
Sustainable Land Use in Developing Countries, Leibniz Centre for Agricultural Landscape Research (ZALF), Eberswalder Straße 84, 15374, Müncheberg, Germany.
Agroforestry is a sustainable land-use strategy that requires better integration of diverse knowledge systems. This paper examines how formal knowledge systems for cacao agroforestry systems in Colombia are structured, and how farmers understand and manage these systems. We interviewed 42 actors involved in knowledge production and dissemination and worked with 18 farmers to create mental maps of their management practices.
View Article and Find Full Text PDFJ Environ Manage
December 2024
Department of Plant Sciences, University of California, Davis One Shields Avenue, Davis, CA, 95616, USA.
Context Or Problem: Most of the research evaluating rice varieties, a major global staple food, for greenhouse gas (GHG) mitigation has been conducted under continuous flooding. However, intermittent irrigation practices are expanding across the globe to address water shortages, which could alter emissions of methane (CH) compared to nitrous oxide (NO) for reducing overall global warming potential (GWP). To develop climate-smart rice production systems, it is critical to identify rice varieties that simultaneously reduce CH and NO emissions while maintaining crop productivity under intermittent irrigation.
View Article and Find Full Text PDFACS Pharmacol Transl Sci
December 2023
School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong 999077, China SAR.
Chemotherapy-induced anemia and thrombocytopenia (CIAT) in cancer patients are often caused by the damage of hematopoietic stem and progenitor cells (HSPCs) in the bone marrow. We have previously shown that romiplostim, a thrombopoietin receptor agonist that could stimulate the expansion of HSPCs, could synergize with recombinant human erythropoietin (rHuEPO) to promote erythropoiesis in addition to stimulating platelet production, whereas rHuEPO could influence the platelet count through stem cell competition. Therefore, we hypothesize that a combination of romiplostim with rHuEPO can alleviate CIAT simultaneously, while minimizing the risk of thrombosis.
View Article and Find Full Text PDFHeliyon
August 2023
Alliance of Biodiversity International and CIAT, ILRI, P.O. Box 5689, Addis Ababa, Ethiopia.
As compared with single agronomic crop management practices during grain formation, knowledge about integrated agronomic management practices on grain mineral composition and grain technological properties in durum wheat is limited. This knowledge is important for determining management strategies aimed at increasing grain yield without affecting grain nutritional quality. Integrated agronomic practices such as foliar nutrient application × seeding rate × varieties combined with growing locations were investigated to evaluate the dynamics of yield and grain quality traits.
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