Isothiourea-Catalyzed Atroposelective N-Acylation of Sulfonamides
作者:Jun-Yang Ong、Xiao Qian Ng、Shenci Lu、Yu Zhao
DOI:10.1021/acs.orglett.0c02266
日期:2020.8.21
We report herein an atroposelective N-acylation of sulfonamides using a commercially available isothiourea catalyst, (S)-HBTM, with a simple procedure. The N-sulfonyl anilide products can be obtained in good to high enantiopurity, which represents a new axially chiral scaffold. The application of the product as a chiral iodine catalyst is also demonstrated for the asymmetric α-oxytosylation of propiophenone
Rapid and Efficient Copper‐Catalyzed Finkelstein Reaction of (Hetero)Aromatics under Continuous‐Flow Conditions
作者:Mao Chen、Saki Ichikawa、Stephen L. Buchwald
DOI:10.1002/anie.201409595
日期:2015.1.2
efficient method for the copper‐catalyzed Finkelstein reaction of (hetero)aromatics has been developed using continuousflow to generate a variety of aryl iodides. The described method can tolerate a broad spectrum of functional groups, including N‐H and O‐H groups. Additionally, in lieu of isolation, the aryl iodide solutions were used in two distinct multistep continuous‐flow processes (amidation and Mg–I
[EN] PYRROLE DERIVATIVES AS ACC INHIBITORS<br/>[FR] DÉRIVÉS DE PYRROLE UTILISÉS EN TANT QU'INHIBITEURS D'ACC
申请人:ALMIRALL SA
公开号:WO2020245297A1
公开(公告)日:2020-12-10
Novel pyrrole derivatives of Formula (I) are disclosed; as well as processes for their preparation, pharmaceutical compositions comprising them and their use in therapy as inhibitors of Acetyl- CoA carboxylase (ACC).
[EN] QUINOLINE DERIVATIVES AS PHOSPHODIESTERASE INHIBITORS<br/>[FR] DERIVES DE QUINOLEINE UTILISES EN TANT QU'INHIBITEURS DE LA PHOSPHODIESTERASE
申请人:GLAXO GROUP LTD
公开号:WO2004103998A1
公开(公告)日:2004-12-02
There are provided according to the invention novel compounds of formula (I) or pharmaceutically acceptable salts thereof, wherein R1, R2, R19, R20 and R34 are as described in the specification, processes for preparing them, formulations containing them and their use in therapy for the treatment of inflammatory diseases.
High birefringence bistolane liquid crystals: synthesis and properties
作者:Dorota Węgłowska、Przemysław Kula、Jakub Herman
DOI:10.1039/c5ra15291g
日期:——
Twenty both symmetrical and non-symmetrical bistolanes with terminal alkyl, alkoxy and alkylsulfanyl chain and lateral methyl or ethyl group have been synthesized via Sonogashira cross-coupling and their mesomorphic properties have been studied.