AMINE DERIVATIVE COMPOUNDS FOR TREATING OPHTHALMIC DISEASES AND DISORDERS
申请人:Acucela, Inc.
公开号:US20160193181A1
公开(公告)日:2016-07-07
Provided are amine derivative compounds, pharmaceutical compositions thereof, and methods of treating ophthalmic diseases and disorders, such as age-related macular degeneration and Stargardt's Disease, using said compounds and compositions.
Arylations of allylic acetates with triarylbismuths as atom-efficient multi-coupling reagents under palladium catalysis
作者:Maddali L.N. Rao、Debasis Banerjee、Somnath Giri
DOI:10.1016/j.tetlet.2009.07.148
日期:2009.10
Arylation of allylic acetates employing triarylbismuths as multi-coupling reagents under palladium-catalyzed conditions was reported. Triarylbismuths as nucleophilic coupling partners were used in sub-stoichiometric amounts with respect to allylic acetates and thus served as atom-efficient multi-coupling reagents. A variety of allylic acetates were cross-coupled with triarylbismuths to furnish the
Stereodivergent Construction of 1,3‐Chiral Centers via Tandem Asymmetric Conjugate Addition and Allylic Substitution Reaction
作者:Jia‐Hao Xie、Yi‐Ming Hou、Zuolijun Feng、Shu‐Li You
DOI:10.1002/anie.202216396
日期:2023.3
cyclohexanones bearing multi-continuous stereocenters by combining copper-catalyzed asymmetric conjugate addition of dialkylzinc reagents to cyclic enones with iridium-catalyzed asymmetric allylicsubstitution reaction. Good to excellent yields, diastereoselectivity and enantioselectivity can be obtained. The current reaction can achieve the stereodivergent construction of nonadjacent stereocenters.
Regioselective Formal β‐Allylation of Carbonyl Compounds Enabled by Cooperative Nickel and Photoredox Catalysis
作者:Kun Liu、Zhe Wang、Augustinus N. Künzel、Marcus Layh、Armido Studer
DOI:10.1002/anie.202303473
日期:2023.9.11
A regioselective formal Tsuji–Trost β-allylation of various carbonyl compounds with different allylic electrophiles is reported. Reactions proceed through initial silyl enol ether formation and subsequent cooperativephotoredox/nickel catalysis.
A Pd-catalyzed multicomponent cross-coupling of allyl esters with alkyl bromides to synthesize allylic sulfones by using K2S2O5 as a connector is first reported. The reaction displays a broad range of substrate generality along with excellent functional group compatibility and produces the products with high regioselectivity (only E). Furthermore, the biologically active molecules with a late-stage
首次报道了以K 2 S 2 O 5作为连接剂,Pd催化烯丙基酯与烷基溴多组分交叉偶联合成烯丙基砜。该反应显示出广泛的底物通用性以及优异的官能团兼容性,并产生具有高区域选择性的产物(仅E)。此外,经过后期修饰的生物活性分子,包括阿司匹林、薄荷醇、冰片、雌酮等,也与多组分交叉偶联反应高度相容。机理研究表明SO 2插入C-Pd 键的过程参与了这一转变。