Synthesis and biological activity of n-butylphthalide derivatives
摘要:
A series of n-butylphthalide derivatives were designed and synthesized. The in vitro activities of these compounds were evaluated by a resting tension of isolated rat thoracic aorta ring assay. Compounds 4g and 41 were found to be more active than n-butylphthalide. (C) 2010 Elsevier Masson SAS. All rights reserved.
Modular Synthetic Approach to Silicon-Rhodamine Homologues and Analogues via Bis-aryllanthanum Reagents
作者:Alexey N. Butkevich
DOI:10.1021/acs.orglett.1c00512
日期:2021.4.2
A modular syntheticapproach toward diverse analogues of the far-red fluorophore silicon-rhodamine (SiR), based on a regioselective double nucleophilic addition of aryllanthanum reagents to esters, anhydrides, and lactones, is proposed. The reaction has improved functional group tolerance and represents a unified strategy toward cell-permeant, spontaneously blinking, and photoactivatable SiR fluorescent
提出了一种基于芳基镧试剂与酯、酸酐和内酯的区域选择性双亲核加成的远红荧光团硅罗丹明(SiR)的多种类似物的模块化合成方法。该反应提高了官能团耐受性,代表了一种针对细胞渗透、自发闪烁和光激活 SiR 荧光标记的统一策略。它与钯催化的羟基或氨基羰基化相结合,为一系列经过验证的活细胞兼容荧光染料提供了一条简化的合成途径。
[EN] OREXIN 1 RECEPTOR ANTAGONISTS<br/>[FR] ANTAGONISTES DES RÉCEPTEURS DE L'OREXINE 1
申请人:HEPTARES THERAPEUTICS LTD
公开号:WO2020120994A1
公开(公告)日:2020-06-18
The disclosures herein relate to novel compounds of formula (I): and salts thereof, wherein W; X; Y; Z; R1; R2; R3 and R4 are defined herein, and their use in treating, preventing, ameliorating, controlling or reducing the risk of neurological or psychiatric disorders associated with orexin receptors.
PRODUCTION METHOD OF HALOGEN-SUBSTITUTED PHTHALIDE
申请人:Hagiya Koji
公开号:US20120142946A1
公开(公告)日:2012-06-07
Disclosed is a method for producing a halogen-substituted phthalide, which includes a reaction step of reacting a halogen-substituted phthalic anhydride with sodium borohydride.
Isochromanone is the core structure of many bioactive compounds. Direct oxidation of isochromans is one of leading methods for the construction of isochromanones, while most established processes remain suffering from the use of environmentally unfriendly metal oxidants, harsh reaction conditions, and the difficulty in catalyst recycling and product separation. Herein, we report a convenient, cost-effective