专利号:US-11161827-B2 优先权日:2019-04-05 标 题 :Catalytic systems for stereoselective synthesis of chiral amines by enantiodivergent radical C—H amination 发明人:Zhang xiao-xiang; Lang kai 权利人:TRUSTEES BOSTON COLLEGE; THE TRUSTEES OF BOSTON COLLEGE 摘要:In one aspect, the disclosure relates to a mode of asymmetric induction in radical processes based on sequential combination of enantiodifferentiative H-atom abstraction and stereoretentive radical substitution. Also disclosed is an asymmetric system for stereoselective synthesis of strained 5-membered cyclic sulfamides via radical 1,5-C—H amination of sulfamoyl azides. The disclosed metalloradical system can control the degree and sense of asymmetric induction in the catalytic radical C—H amination in a systematic manner. The disclosed system is applicable to a broad scope of substrates with different types of C(sp 3 )—H bonds and exhibits reactivity and selectivity, providing access to both enantiomers of useful 5-membered cyclic sulfamides in a highly enantioenriched form. Also disclosed are catalysts useful in these processes. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
专利号:US-2020317627-A1 优先权日:2019-04-05 标 题:Catalytic systems for stereoselective synthesis of chiral amines by enantiodivergent radical c-h amination
专利号:US-2005240034-A1 优先权日:2002-05-07 标 题 :Artemisinin-based peroxide compounds as broad spectrum anti-infective agents 发明人:AVERY MITCHELL; MURALEEDHARAN KANNOTH M 权利人:AVERY MITCHELL; MURALEEDHARAN KANNOTH M 摘要:Described herein is the synthesis, bioassay results and utility of new C- 9 and C- 10 substituted artemisinin derivatives with easily functionalizable groups attached to the artemisinin skeleton through carbon chain or heteroatoms. Described also is the demonstration of this class of compounds for their broad-spectrum anti-parasitic activity. Certain of these analogs possess noticeable cytotoxicity deliberately focused on treatment of cancerous diseases.
参考标题: Sphingosine Kinase Inhibitors Inhibiteurs De La Sphingosine Kinase 摘要:Sphingosine Kinases Are Enzymes That Catalyze The Biosynthesis Of Sphingosine-1-Phosphate. The Invention Provides Compounds That Are Effective For Inhibition Of Sphingosine Kinase Type 1, Sphingosine Kinase Type 2, Or Both. Certain Compounds Are Selective For Sphingosine Kinase Type 2 Relative To Sphingosine Kinase Type 1. Compounds Of The Invention Can Be Used In Treatment Of A Range Of Diseases Wherein Increasing The Level Of Sphingosine-1-Phosphate In Blood Is Medically Indicated. Diseases That Can Be Treated By Administration Of An Effective Dose Of A Compound Of The Invention Include A Neoplastic Disease That Involves Excess Vascular Growth; Macular Degeneration Or Diabetic Retinopathy; An Allergic Disease Such As Asthma, An Inflammatory Disease Of The Eye Such As Uveitis, Scleritis, Or Vitritis; An Inflammatory Disease Of The Kidney; A Fibrotic Disease; Atherosclerosis; Or Pulmonary Arterial Hypertension. A Compound Of The Invention Can Be Used To Improve The Integrity Of A Vascular Barrier In A Disease Where The Vascular Barrier Is Disrupted, Such As Cancer Or Alzheimer'S Disease.
合成参考文献
摘要:Treacy, S. M.; Zhang, X.; Rovis, T., Science of Synthesis, (2021) , 627. 摘要:Chen, P.; Liu, G., Science of Synthesis: Modern Strategies in Organofluorine Chemistry , (2024) 1, 44.