101-32-6Relevant articles and documents
Substitution effect, absorption, and fluorescence behaviors of 11,12-benzo-1,7,10,13-tetraoxa-4-azacyclopentadec-11-ene (Benzoaza-15-crown-5) derivatives upon cation complexation in solvent extraction
Nakamura, Mitsunobu,Yokono, Hideaki,Tomita, Ken-Ichi,Ouchi, Mikio,Miki, Masamichi,Dohno, Reizo
, p. 3533 - 3536 (2002)
Substitution effect, absorption, and fluorescence behaviors of some benzoaza-15-crown-5 derivatives upon cation complexation in solvent extraction were studied. The introduction of a substituent on the nitrogen atom in benzoaza-15-crown-5 enhanced extractabilities in the solvent extraction of aqueous alkali metal picrates. The nondonating substituents raised the cation selectivity for Na+ over K+, but the donating substituents reduced the cation selectivity. The absorption and fluorescence spectral behavior was different with the alkali metal cations.
Synthesis and antidepressant activity of optical isomers of 2-(4-benzylpiperazin-1-yl)-1-(5-chloro-6-methoxynaphthalen-2-yl) propan-1-ol (SIPI5056)
Weng, Zhijie,Li, Jianqi
, p. 1256 - 1259 (2010)
Four optical isomers of SIPI5056 were synthesized and evaluated for their antidepressant activities and acute toxicities as novel multiple reuptake inhibitors of monoamine transmitters. Chiral alanines were used as educts to prepare their respective target compounds in nine steps. Pharmacological results showed that the (1R,2S)-SIPI5056 isomer has higher inhibitory activity and lower toxicity than other three isomers and is worthy of further development.
Aza-crown ether complex cation ionic liquids: Preparation and applications in organic reactions
Song, Yingying,Cheng, Chen,Jing, Huanwang
, p. 12894 - 12900 (2014)
Aza-crown ether complex cation ionic liquids (aCECILs) were devised, fabricated, and characterized by using NMR spectroscopy, MS, thermogravimetric differential thermal analysis (TG-DTA), elemental analysis and physical properties. These new and room-temperature ILs were utilized as catalysts in various organic reactions, such as the cycloaddition reaction of CO2 to epoxides, esterification of acetic acid and alcohols, the condensation reaction of aniline and propylene carbonate, and Friedel-Crafts alkylation of indole with aldehydes were investigated carefully. In these reactions, the ionic liquid exhibited cooperative catalytic activity between the anion and cation. In addition, the aza-[18-C-6HK][HSO4]2 was the best acidic catalyst in the reactions of esterification and Friedel-Crafts alkylation under mild reaction conditions. Jewel in the crown: Nine new and room-temperature aza-crown ether complex ionic liquids (aCECILs) composed of multiple cations and anions were fabricated through a convenient procedure (see scheme). Some of them were used as catalysts in various organic reactions, such as the cycloaddition reaction of CO2 to propylene oxide, esterification of acetic acid and alcohols, the condensation of aniline and propylene carbonate, and Friedel-Crafts alkylation of indole with aldehydes.
Compound serving as SHP2 inhibitor and application thereof
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Paragraph 0238; 0240-0242, (2021/05/12)
The invention belongs to the field of medical chemistry, relates to a compound serving as an SHP2 inhibitor and an application of the compound, and particularly provides a compound shown in a formula (I) or an isomer, pharmaceutically acceptable salt, solvate, crystal or prodrug of the compound, processes for the preparation, pharmaceutical compositions containing these compounds and the use of these compounds or compositions for the treatment of SHP2 mediated diseases.
Preparation method of 1-benzyl-4-cyano-4-phenylpiperidine hydrochloride
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Paragraph 0007; 0023-0030; 0049-0055; 0074-0080, (2021/05/29)
The invention relates to the technical field of organic synthesis, in particular to a preparation method of 1-benzyl-4-cyano-4-phenylpiperidine hydrochloride. The preparation method disclosed by the invention comprises the following steps of: (1) preparing benzyl diethanolamine by taking benzyl chloride and diethanolamine as raw materials; (2) preparing benzyl dichloroethylamine hydrochloride by taking benzyl diethanolamine and thionyl chloride as raw materials; and (3) preparing the 1-benzyl-4-cyano-4-phenylpiperidine hydrochloride by taking the benzyl dichloroethylamine hydrochloride and the benzyl cyanide as raw materials. The preparation method disclosed by the invention is simple in process and suitable for industrial production, the HPLC content of the finally obtained 1-benzyl-4-cyano-4-phenylpiperidine hydrochloride is greater than or equal to 98.0%, the total yield (based on diethanolamine) is greater than or equal to 89%, and the 1-benzyl-4-cyano-4-phenylpiperidine hydrochloride has a very good market prospect.
Pyrazinothiazole compound and application thereof, and pharmaceutical composition containing pyrazinothiazole compound
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Paragraph 0151-0154; 0155-0157, (2020/11/09)
The invention discloses a pyrazinothiazole compound, an application of the pyrazinothiazole compound, and a pharmaceutical composition containing the pyrazinothiazole compound, and provides a pyrazinothiazole compound represented by a formula A or a pharmaceutically acceptable salt of the pyrazinothiazole compound. The pyrazinothiazole compound provided by the invention has relatively good SHP2 inhibitory activity.