1753-50-0Relevant articles and documents
Preparation method of 2-chloro-5-cyanopyrimidine compound
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Paragraph 0031; 0035, (2020/03/09)
The invention discloses a preparation method of a 2-chloro-5-cyanopyrimidine compound. A route adopted by the preparation method is as follows: cyanoacetic acid is used as a raw material, ioxane is used as a solvent, and a reaction is conducted under the action of N,N-dimethylformamide dimethyl acetal so as to generate 3-(dimethylamino)acrylonitrile, and then a Vilsmeier reaction, an addition reaction, a ring closing reaction and a chlorination reaction are sequentially carried out to finally obtain a finished product, i.e., the 2-chloro-5-cyanopyrimidine compound. According to the synthetic route provided by the preparation method, raw materials are cheap and easily available; aftertreatment is simple; purification is easy; column chromatographic purification is not needed in each step ofreaction; the method can effectively overcome the technical defects of long route, expensive raw material cost, need of column chromatography and the like of other synthesis methods in the prior art;and the preparation method of the 2-chloro-5-cyanopyrimidine compound provided by the invention has important economic benefits on reduction of the drug cost, and is a technology which is low in costand suitable for industrial production.
ORGANIC FLUORESCENT LUMINESCENT MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE
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Paragraph 0041, (2017/07/06)
An organic fluorescent luminescent material and an organic electro-luminescence device are provided. The organic fluorescent luminescent material may be represented by the formula, (Ar)-(Ph)-(X), wherein Ar is Ph include at least one benzene ring, X is a six-membered aromatic ring, and at least one nitrogen atom is located on the six-membered aromatic ring. The organic fluorescent luminescent material can be used in organic electro-luminescence devices.
PYRIDONE AND PYRIDAZONE ANALOGUES AS GPR119 MODULATORS
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Page/Page column 104-105, (2010/04/03)
Novel compounds of structure Formula (I) or an enantiomer, a diastereomer, or a pharmaceutically acceptable salt thereof, wherein Z, R1, R2, R21, T1, T2, T3 and T4 are defined herein, are provided which are GPR119 G protein-coupled receptor modulators. GPR119 G protein-coupled receptor modulators are useful in treating, preventing, or slowing the progression of diseases requiring GPR119 G protein-coupled receptor modulator therapy. Thus, the disclosure also concerns compositions comprising these novel compounds and methods of treating diseases or conditions related to the activity of the GPR119 G protein-coupled receptor by using any of these novel compounds or a composition comprising any of such novel compounds.