[EN] HETEROCYCLIC INHIBITORS OF BETA - SECRETASE FOR THE TREATMENT OF NEURODEGENERATIVE DISEASES<br/>[FR] INHIBITEURS HÉTÉROCYCLIQUES DE LA BÊTA-SECRÉTASE POUR LE TRAITEMENT DE MALADIES NEURODÉGÉNÉRATIVES
申请人:ARRAY BIOPHARMA INC
公开号:WO2012071458A1
公开(公告)日:2012-05-31
The invention provides novel tricyclic compounds of Formula I' that inhibit β-secretase cleavage of APP and are useful as therapeutic agents for treating neurodegenerative diseases.
[EN] SILYL SUBSTITUTED AZADIBENZOFURANS AND AZADIBENZOTHIOPHENES<br/>[FR] AZADIBENZOFURANES SUBSTITUÉS PAR SILYLE ET AZADIBENZOTHIOPHÈNES
申请人:BASF SE
公开号:WO2015114102A1
公开(公告)日:2015-08-06
The present invention relates to compounds of formula (I), which are characterized in that they are substituted by at least one group of formula (II) and in that at least one of the substituents B1, B2, B3, B4, B5, B6, B7 and B8 represents N; a process for their production and their use in electronic devices, especially electroluminescent devices. When used as electron transport material, hole blocking material and/or host material for phosphorescent emitters in electroluminescent devices, the compounds of formula I may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices.
Zn(OTf)<sub>2</sub>-Catalyzed Formal [3 + 3] Cascade Annulation of Propargylic Alcohols with 2-Aminochromones: Accessing the Chromeno[2,3-<i>b</i>]pyridines
作者:Pei Tong、Zhou Sun、Shutao Wang、Yuan Zhang、Ying Li
DOI:10.1021/acs.joc.9b02120
日期:2019.11.1
A Zn(OTf)2-catalyzed formal [3 + 3] cascade annulation strategy for the synthesis of functionalized chromeno[2,3-b]pyridines has been developed using propargylicalcohols and 2-aminochromones as the substrates. The protocol provides a convenient and atom-economical method of accessing a broad range of chromeno[2,3-b]pyridine derivatives in excellent yields with good functional-group tolerance. The
KIO<sub>3</sub>-Catalyzed Domino C(sp<sup>2</sup>)−H Bond Sulfenylation and C−N Bond Oxygenation of Enaminones toward the Synthesis of 3-Sulfenylated Chromones
作者:Shanshan Zhong、Yunyun Liu、Xiaoji Cao、Jie-Ping Wan
DOI:10.1002/cctc.201601273
日期:2017.2.6
With 2‐hydroxyphenyl‐functionalized enaminones and thiophenols as the starting materials, the facilesynthesis of 3‐sulfenylated chromones has been realized through a KIO3‐catalyzed domino reaction of C−H sulfenylation and subsequent C−N‐cleavage‐based C−O bondformation. The reaction was performed under transition‐metal‐free conditions in ethyl lactate, a bioavailable ecofriendly medium.
Synthesis of 3-halochromones with simple KX halogen sources enabled by <i>in situ</i> halide oxidation
作者:Yan Lin、Jie-Ping Wan、Yunyun Liu
DOI:10.1039/d0nj00825g
日期:——
On the basis of a designated in situ oxidation tactic, the synthesis of 3-halochromones has been realized for the first time by using simple KX (X = Br, I) salts as halogen sources. Instead of the free radical process, the control experiments indicate that the reported reactions proceed through a halogenium intermediate. Compared to the known synthetic methods relying on molecular halogen, haloid acid