[EN] 18 F - LABELLED 6 - ( 2 - FLUOROETHOXY) - 2 - NAPHTHALDEHYDE FOR DETECTING CANCER STEM CELLS<br/>[FR] 6-(2-FLUROÉTHOXY)-2-NAPHTALDÉHYDE MARQUÉ AU 18F POUR DÉTECTER DES CELLULES SOUCHES CANCÉREUSES
申请人:GE HEALTHCARE LTD
公开号:WO2013048832A1
公开(公告)日:2013-04-04
The present invention relates to in vivo imaging and radiotherapeutic methods and agents which target the enzyme aldehyde dehydrogenase (ALDH) and that are suitable for the in vivo imaging of tumours and treatment of cancer.
Addition of a Carbene Catalyst to Indole Aryl Aldehyde Activates a Remote δ-sp<sup>2</sup> Carbon for Protonation and Formal [4+2] Reaction
作者:Pengcheng Zheng、Shuquan Wu、Chengli Mou、Wei Xue、Zhichao Jin、Yonggui Robin Chi
DOI:10.1021/acs.orglett.9b01624
日期:2019.7.5
The addition of a carbene catalyst to an indole aryl aldehyde leads to the activation of a remote sp2 carbon that is five atoms away from the catalyst. The unsaturated Breslow intermediate formed between the catalyst and substrate undergoes an internal redox reaction and remote carbon protonation to generate an analogous azolium vinyl enolate intermediate. Subsequent [4+2] reaction with cyclic imine
convenient synthesis of carbazole-1,4-quinone alkaloid koeniginequinones A and B using a tandem ring-closing metathesis with the dehydrogenation reaction sequence under an O2 atmosphere as an important step. Using this method, carbazole-1,4-quinones substituted at the 5-, 6-, 7-, and/or 8-positions have been synthesized. Moreover, 24 compounds, including koeniginequinones A and B, have been evaluated for
[EN] PROCESSES FOR THE PREPARATION OF INHIBITORY COMPOUNDS<br/>[FR] PROCÉDÉS DE PRÉPARATION DE COMPOSÉS INHIBITEURS
申请人:STORM THERAPEUTICS LTD
公开号:WO2022254218A1
公开(公告)日:2022-12-08
The present invention relates to processes for the preparation of certain compounds that function as inhibitors of METTL3 (N6-adenosine-methyltransferase 70 kDa subunit) activity, and their synthethic intermediates.
Brønsted acid-catalyzed asymmetric dearomatization of indolyl ynamides: Practical and enantioselective synthesis of polycyclic indolines
作者:Zhi-Xin Zhang、Xuan Wang、Jia-Tian Jiang、Jie Chen、Xin-Qi Zhu、Long-Wu Ye
DOI:10.1016/j.cclet.2022.06.070
日期:2023.3
efficient synthesis of valuable chiral polycyclic indolines. However, these reactions have been mostly limited to transition-metal catalysts, and the related chiral Brønsted acid catalysis has been scarcely reported. Herein, we disclose a chiral phosphoric acid-catalyzed asymmetric dearomatization of indolyl ynamides by direct activation of alkynes. This metal-free method enables the practical and atom-economical