Remote Control of Axial Chirality: Synthesis of Spirooxindole–Urazoles via Desymmetrization of ATAD
作者:Lin-Lin Zhang、Ji-Wei Zhang、Shao-Hua Xiang、Zhen Guo、Bin Tan
DOI:10.1021/acs.orglett.8b02361
日期:2018.10.5
control of axial chirality in an asymmetric three-component reaction. This transformation was realized by a tandem bisthiourea-catalyzed asymmetric Diels–Alder reaction and substrate-controlled asymmetric enereaction. The driving force derived from aromatization and the high reactivity of 4-aryl-1,2,4-triazole-3,5-dione enophiles mediated the occurrence of the successive enereaction under mild conditions
Stereoselective Construction of Complex Spirooxindoles via Bisthiourea Catalyzed Three-Component Reactions
作者:Lin-Lin Zhang、Ji-Wei Zhang、Shao-Hua Xiang、Zhen Guo、Bin Tan
DOI:10.1002/cjoc.201800368
日期:2018.12
three‐component reaction was developed to construct a class of optically active carbazolespirooxindole‐urazoles in good yields with excellent stereoselectivities via tandem Diels‐Alder reaction and ene‐reaction. The driving force originating from aromatization with in situ generated carbazolespirooxindole and the high reactivity of 4‐phenyl‐3H‐1,2,4‐triazole‐3,5‐dione facilitate the ene‐reaction in mild conditions
通过串联Diels-Alder反应和烯反应,开发了一种设计良好的三组分反应,以高收率和优异的立体选择性构建了一类光学活性咔唑螺氧并吲哚-尿嘧啶。原位产生的咔唑螺硫醇芳香化作用产生的驱动力和4-苯基-3 H -1,2,4-三唑-3,5-二酮的高反应活性有助于在温和条件下进行烯反应。对照实验表明,烯反应的出色立体选择性很可能来自咔唑螺并恶唑的空间构型。所获得的产物可以通过多种功能化转化为其他合成有用的结构。
BICYCLIC HETEROAROMATIC UREA OR CARBAMATE COMPOUNDS FOR USE IN THERAPY
申请人:European Molecular Biology Laboratory
公开号:US20210147405A1
公开(公告)日:2021-05-20
The present invention relates to bicyclic heteroaromatic urea or carbamate compounds of formula I where the variables are as defined in the claims and the description. The invention moreover relates to a pharmaceutical composition containing these compounds I, and to these compounds for use in therapy, especially for use in the treatment or prevention of a disease or disorder selected from the group consisting of an inflammatory disease, a hyperproliferative disease or disorder, a hypoxia-related pathology and a disease characterized by excessive vascularization.
Asymmetric organocatalytic synthesis of 4,6-bis(1<i>H</i>-indole-3-yl)-piperidine-2 carboxylates
An asymmetric synthesis of novel bisindole-piperidine-amino acid hybrids is reported, leading to products with good yields and excellent ees.
报道了一种新型双吲哚-哌啶-氨基酸混合物的不对称合成,产物收率高且ee值优秀。
Asymmetric Organocatalytic Synthesis of Bisindoles - Scope and Derivatizations
作者:Christina Retich、Stefan Bräse
DOI:10.1002/ejoc.201701502
日期:2018.1.10
library of various novel biologically active bisindoles with different substitution patterns was synthesized. Electro‐withdrawing groups on the starting material led to the formation of Povarov‐type structures. Furthermore we could successfully demonstrate that consecutive reactions like cross couplings, reductions or even click reactions on bisindoles are feasible.