5469-66-9Relevant articles and documents
Are diazides really dangerous compounds under ordinary conditions?
Farias, Ravir R.,Mascarenhas, Artur J.S.,Santos, Tatiane de J.,Victor, Mauricio M.
, (2020)
An investigation into the stability of three commonly used diazides (1,3-diazido-propane, 1,3-diazido-propan-2-ol, and 1,3-diazido-propanone) was performed. Despite their use in synthesis, no previous investigation of their thermal stability has been repo
Synthesis, radiolabeling, and evaluation of a potent β-site APP cleaving enzyme (BACE1) inhibitor for PET imaging of BACE1 in vivo
Cai, Huawei,He, Qian,Li, Yunchun,Pan, Lili,Wang, Yuxi,Wu, Xiaoai,Wu, Yi,Yang, Bo,Zhang, Ni
supporting information, (2022/01/24)
The β-site APP-cleaving enzyme 1 (BACE1) plays important roles in the proteolytic processing of amyloid precursor protein, and can be regarded as an important target for the diagnosis and treatment of AD. This study aimed to report the synthesis and evaluation of an 18F-labeled 2-amino-3,4-dihydroquinazoline analog as a potential BACE1 radioligand. A fluoropropyl side chain was introduced to the phenyl of this 3,4-dihydroquinazoline scaffold to generate the radioligand. Our preliminary data indicated that although the 2-amino-3,4-dihydroquinazoline scaffold possessed favorable in-vitro properties as a PET ligand, its poor brain uptake hindered the in-vivo imaging of BACE1. Further investigation would be required to optimize the scaffold for the development of a blood-brain-barrier-permeable BACE1-targeted PET ligand.
Metal-ligand complexes having electron withdrawing group, catalyst composition for ethylene-based polymerization containing the same, and production methods of ethylene-based polymers using the same
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Paragraph 0144-0145; 0158-0160, (2021/07/13)
A metal - ligand complex having a strong electron donor group and an electron withdrawing group at the same time. The present invention relates to a catalyst composition for ethylene polymerization and a method for preparing an ethylene-based polymer usin
Macrocyclic compound, and preparation method and application thereof
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Paragraph 0206-0208, (2021/06/23)
The invention discloses a macrocyclic kinase inhibitor, and a compound, or a stereoisomer or a pharmaceutically acceptable salt thereof as shown in a formula (I). Experiments show that the novel compound shown in the formula (I) shows good TRK inhibitory
Method for preparing diazacyclooctane intermediate and diazacyclooctane
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Paragraph 0019; 0023; 0029; 0034; 0039; 0044, (2020/06/17)
The invention provides a method for preparing a diazacyclooctane intermediate and diazacyclooctane. The preparation method comprises the following steps: synthesizing 1,5-bis(p-toluenesulfonyl)-1,5-diazacyclooctane from 1,3-bis(p-toluenesulfonyl)-1,3-dioxypropane, 1,3-bis(p-toluenesulfonyl)-1,3-propane diamine and sodium methoxide under a temperature condition of 60-100 DEG C; then synthesizing 1,5-diazacyclooctane bromate from 1,5-bis(p-toluenesulfonyl)-1,5-diazacyclooctane, phenol and hydroacetic acid; and finally, synthesizing 1,5-diazacyclooctane from 1,5-diazacyclooctane bromate and sodium methoxide. According to the method, the yield of the 1,5-bis(p-toluenesulfonyl)-1,5-diazacyclooctane can be increased, and the reaction time for synthesizing the 1,5-diazacyclooctane can be shortened.
PYRIDINE AND PYRAZINE DERIVATIVES AS PREFERENTIAL CANNABINOID 2 AGONISTS
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Page/Page column 71; 72, (2020/01/24)
The invention relates to a compound of formula (I), wherein A1, A2 and R1-R5 are as defined in the description and in the claims. The compound of formula (I) can be used as cannabinoid 2 preferential agonist.
The synthesis of precursor of FP- (+) DTBZ
Wu, Caijiao,Li, Hui,Sun, Feiyang,Bao, Changshun,Bao, Xuefei,Chen, Guoliang
supporting information, p. 3218 - 3225 (2019/09/13)
A synthetic route to the precursor of FP- (+) DTBZ was disclosed, in which 3-hydroxy-4-methoxybenzaldehyde was employed as a starting material. In the method, the benzyl-protecting protocol and the in-situ Diels-Alder reaction made the procedure more practical because of the mild conditions for selectively deprotection and the accelerated reaction process.
Synthesis and recognition properties of calix[4]arene semitubes as ditopic hosts for: N -alkylpyridinium ion pairs
Vita, Francesco,Vorti, Michela,Orlandini, Guido,Zanichelli, Valeria,Massera, Chiara,Ugozzoli, Franco,Arduini, Arturo,Secchi, Andrea
, p. 5017 - 5027 (2016/07/07)
A series of calix[4]arene semitubes (4a-c) having alkyl bridging spacers of different lengths and flexibilities on their lower rim was synthesised and characterised in solution and in the solid state by 1H NMR spectroscopy and X-ray crystallogr
Synthesis,18 F-Radiolabelling and Biological Characterization of Novel Fluoroalkylated Triazine Derivatives for in Vivo Imaging of Phosphodiesterase 2A in Brain via Positron Emission Tomography
Schr?der, Susann,Wenzel, Barbara,Deuther-Conrad, Winnie,Teodoro, Rodrigo,Egerland, Ute,Kranz, Mathias,Scheunemann, Matthias,H?fgen, Norbert,Steinbach, J?rg,Brust, Peter
, p. 9591 - 9615 (2015/08/06)
Phosphodiesterase 2A (PDE2A) is highly and specifically expressed in particular brain regions that are affected by neurological disorders and in certain tumors. Development of a specific PDE2A radioligand would enable molecular imaging of the PDE2A protei
CATALYST SYSTEMS FOR OLEFIN POLYMERIZATION
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, (2015/11/18)
The instant invention provides procatalysts and catalyst systems for olefin polymerization, olefin based polymers polymerized therewith, and process for producing the same. In one embodiment, the instant invention provides a procatalyst comprising a metal