The hydration of α,β‐unsaturatedketones with water proceeded efficiently in the presence of In(OTf)3 (20 mol%) in aqueous media to afford synthetically versatile β‐hydroxyketones in moderate to good yields with good functional group compatibility. The method also can be extended to the hydroalkoxylation of α,β‐unsaturatedketones with various alcohols for the efficient synthesis of β‐alkoxyketones as
Chromium(III)-Catalyzed Addition of Water and Alcohol to α,β-Unsaturated Ketones for the Synthesis of β-Hydroxyl and β-Alkoxyl Ketones in Aqueous Media
An efficient chromium(III) chloride-catalyzed Michael-type reaction of water or alcohol with α,β-unsaturatedketones is developed. A variety of α,β-unsaturatedketones effectively reacted with either water or alcohols to give the corresponding β-hydroxyl ketones or β-alkoxyl ketones in modest to high yields with excellent compatibility to various functional groups. The approach was further utilized
Design and synthesis of Mannich base-type derivatives containing imidazole and benzimidazole as lead compounds for drug discovery in Chagas Disease
作者:Iván Beltran-Hortelano、Richard L. Atherton、Mercedes Rubio-Hernández、Julen Sanz-Serrano、Verónica Alcolea、John M. Kelly、Silvia Pérez-Silanes、Francisco Olmo
DOI:10.1016/j.ejmech.2021.113646
日期:2021.11
a panel of 69 new analogues, based on multi-parametric structure-activity relationships, which allowed optimization of both anti-parasitic activity, physicochemical parameters and ADME properties. Additionally, we optimized our in vitro screening approaches against all three developmental forms of the parasite, allowing us to discard the least effective and trypanostatic derivatives at an early stage
stereoselective domino Rauhut–Currier/Michael addition process of 3-benzofuranyl vinyl ketones and 3-olefinic (7-aza)oxindoles can be realised via catalysis by a chiral bifunctional phosphine, furnishing the previously unreported direct asymmetric dearomative reaction of benzofuran substrates tethered to a carbonyl group in a formal [4+2] cycloaddition manner. An array of hydrodibenzofuran derivatives with dense
Part 2. Notch-sparing γ-secretase inhibitors: The study of novel γ-amino naphthyl alcohols
作者:Han-Xun Wei、Dai Lu、Vivien Sun、Jing Zhang、Yongli Gu、Pamela Osenkowski、Wenjuan Ye、Dennis J. Selkoe、Michael S. Wolfe、Corinne E. Augelli-Szafran
DOI:10.1016/j.bmcl.2016.03.042
日期:2016.5
the amyloid precursor protein (APP) by γ-secretase. At the beginning of a series of studies from our laboratories, a series of novel γ-amino alcohols (1) were found to possess γ-secretase inhibitory activity and Notch-sparing effects. A new one-pot synthesis of γ-amino alcohols and the structure–activity relationship (SAR) of these analogs will be discussed.