[EN] BRIDGED TRICYCLIC CARBAMOYLPYRIDONE COMPOUNDS AND THEIR PHARMACEUTICAL USE<br/>[FR] COMPOSÉS DE CARBAMOYLPYRIDONE TRICYCLIQUE PONTÉS ET LEUR UTILISATION PHARMACEUTIQUE
申请人:GILEAD SCIENCES INC
公开号:WO2020197991A1
公开(公告)日:2020-10-01
Compounds for use in treating or preventing human immunodeficiency virus (HIV) infection are disclosed. The compounds have the following formula (I): including stereoisomers and pharmaceutically acceptable salts thereof, wherein R1, R2, L, W1, W2, X, Y, and Z are as defined herein. Methods associated with the preparation and use of such compounds, as well as pharmaceutical compositions comprising such compounds, are also disclosed.
Highly Diastereoselective Preparation of (<i>E</i>)-Alkenylsilanes Bearing an α-Chiral Center
作者:Sylvie Perrone、Paul Knochel
DOI:10.1021/ol063097o
日期:2007.3.1
The copper(I)-mediated anti-S(N)2' allylic substitution allows a highly stereoselective preparation of alkenylsilanes bearing a chiral center in the alpha-position with high transfer of chirality. These alkenylsilanes were converted into alpha,beta-unsaturated ketones or into the corresponding boronic esters without loss of the chiral information. [reaction: see text]
3-dithianes using 30% hydrogen peroxide catalyzed by iron(III) acetylacetonate–sodium iodide. The use of niobium(V) chloride as a catalyst instead of iron(III) acetylacetonate was also effective, except in synthesizing some acyltrimethylsilanes. Acylsilanes were obtained efficiently from dedithioacetalization of 2-silylated 1,3-dithianes using 30% hydrogen peroxide catalyzed by iron(III) acetylacetonate–sodium
Toward the Synthesis of Cobyric Acid. Enantioselective Syntheses of Completely Differentiated Ring D Synthons
作者:Hui Wang、Carlos Tassa、Peter A. Jacobi
DOI:10.1021/ol800985m
日期:2008.7.3
Alkyne acids 11 were prepared in an enantioselective fashion from allylic ester derivatives 18 or 20 by Ireland-Claisen rearrangement, followed by Si-assisted elimination of HBr. The title compounds are attractive ring D synthons for an ongoing synthesis of cobyricacid.
炔酸 11 是由烯丙基酯衍生物 18 或 20 通过爱尔兰-克莱森重排以对映选择性方式制备的,然后是 Si 辅助消除 HBr。标题化合物是有吸引力的环 D 合成子,用于正在进行的钴酸合成。
An improved synthesis of a ring-C precursor to cobyric acid
作者:Peter Alan Jacobi、Hui Wang
DOI:10.3998/ark.5550190.0011.403
日期:——
Alkyne acid 10 was prepared in enantioselective fashion from allylic ester derivative (R)-18 via an E-selective Ireland-Claisen rearrangement followed by Si-assisted elimination of HBr. The present route offers significant advantages in terms of both scalability and overall yield compared to that previously described. Alkyne acid 10 is an attractive ring-Cprecursor for an ongoing synthesis of cobyric
炔酸 10 是以对映选择性方式从烯丙基酯衍生物 (R)-18 通过 E 选择性爱尔兰-克莱森重排和 Si 辅助消除 HBr 制备的。与先前描述的路线相比,本路线在可扩展性和总产量方面提供了显着优势。炔酸 10 是一种有吸引力的 C 环前体,用于正在进行的钴酸合成。