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
Substrate-Controlled Transformation of Azobenzenes to Indazoles and Indoles via Rh(III)-Catalysis
作者:Shangjun Cai、Songyun Lin、Xiangli Yi、Chanjuan Xi
DOI:10.1021/acs.joc.6b02548
日期:2017.1.6
excellent regio-selectivity are achieved in this reaction. Mechanistically, the reaction with acrylates undergoes β-hydride elimination, while the reaction with vinyl ketones or acrylamides undergoes nucleophilicaddition. Copper acetate was supposed to play different roles in the β-hydride elimination to furnish indazoles and nucleophilicaddition of C–Rh bond to deliver 2-acyl (NH) indoles.
[EN] NOVEL SYNTHESIS ROUTES FOR PROSTAGLANDINS AND PROSTAGLANDIN INTERMEDIATES USING METATHESIS<br/>[FR] NOUVELLES VOIES DE SYNTHÈSE POUR DES PROSTAGLANDINES ET DES INTERMÉDIAIRES DE PROSTAGLANDINE PAR MÉTATHÈSE
申请人:IRIX PHARMACEUTICALS INC
公开号:WO2015048736A1
公开(公告)日:2015-04-02
Methods of synthesizing prostaglandins, prostaglandin analogs and their synthetic intermediates are described. The methods can comprise metal- catalyzed metathesis reactions. Also provided are synthetic intermediates that can be used in the synthesis of the prostaglandins and prostaglandin analogs.
A series of highly strained bicyclo[3.n.1]alkenones have been successfully constructed in good-to-excellent enantioselectivities and moderate-to-good yields via copper-catalyzed formal [3+3] cycloaddition. The versatile chiral cycloadducts could be selectively converted into various valuable bridge systems, which hold considerable potential for the construction of natural and bioactive compounds containing
Cobalt(III)-Catalyzed Diastereo- and Enantioselective Three-Component C–H Functionalization
作者:Ana G. Herraiz、Nicolai Cramer
DOI:10.1021/acscatal.1c03153
日期:2021.10.1
for the creation of stereogenic centers. The steep increase in molecular complexity of multicomponent reactions matches very well with asymmetric C–H functionalizations, but the realization of such processes remains a large challenge. We describe a diastereoselective and highly enantioselective three-component C–H functionalization catalyzed by an earth-abundant Co(III) complex equipped with a chiral