51269-84-2Relevant articles and documents
Donor-receptor type stable thermal activation delayed fluorescence material designed based on rigid molecular structure
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Paragraph 0249; 0257, (2021/07/24)
The invention relates to a donor-receptor type stable thermal activation delayed fluorescence material designed based on a rigid molecular structure. A series of novel donor-receptor type TADF-activated emitters have been designed for the development of stable OLEDs with enhanced operational stability and improved color purity. These materials are useful in panchromatic display and lighting applications.
Tetradentate cyclometalated platinum complexes containing 9,10-dihydroacridine and its analogues
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Page/Page column 310, (2018/04/19)
Platinum complexes suitable for use as phosphorescent emitters or as delayed fluorescent and phosphorescent emitters having the following structure:
TETRADENTATE AND OCTAHEDRAL METAL COMPLEXES CONTAINING NAPHTHYRIDINOCARBAZOLE AND ITS ANALOGUES
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Paragraph 0396; 0397, (2016/12/26)
Tetradentate and octahedral metal complexes suitable for use as phosphorescent or delayed fluorescent and phosphorescent emitters in display and lighting applications.
PYRIDOPYRIMIDINONE INHIBITORS OF KINASES
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Paragraph 0541, (2013/09/12)
The present invention relates to compounds of formula (I) or pharmaceutical acceptable salts, wherein R1, R2, R3, R4, and B are defined in the description. The present invention relates also to compositions cont
Antiallergy Agents. 1. Substituted 1,8-Naphthyridin-2(1H)-ones as Inhibitors of SRS-A Release
Sherlock, Margaret H.,Kaminski, James J.,Tom, Wing C.,Lee, Joe F.,Wong, Shing-Chun,et al.
, p. 2108 - 2121 (2007/10/02)
A novel class of antiallergy agents, the substituted 1,8-naphthyridin-2(1H)-ones, is described.The present compounds are orally active, potent inhibitors of allergic and nonallergic bronchospasm in animal models.Structure-activity studies of the lead compound in this sereis, 1-phenyl-3-n-butyl-4-hydroxynaphthyridin-2(1H)-one (11), identified three compounds of interest, 1-phenyl-3-(2-propenyl)-4-acetoxy-1,8-naphthyridin-2(1H)-one (12), 1-(3'-chlorophenyl)-3-(2-propenyl)-4-acetoxy-1,8-naphthyridin-2(1H)-one (87), and 1-(3'-methoxyphenyl)-3-(2-propenyl)-4-acetoxy-1,8-naphthyridin-2(1H)-one (89).The mechanism of antiallergy activity may involve inhibition of the release of the sulfidopeptide leukotrienes. 1-Phenyl-3-(2-propenyl)-4-acetoxy-1,8-naphthyridin-2(1H)-one, Sch 33303 (12), was selected for preclinical development as an antiallergy agent.
Ring Transformation Reactions of 1-Substituted 2(1H)-Pyrimidinones and Related Compounds with Active Methylene Compounds
Katoh, Akira,Omote, Yoshimori,Kashima, Choji
, p. 2942 - 2946 (2007/10/02)
1-Substituted 2(1H)-pyrimidinones (I) underwent ring transformation with malononitrile and ethyl acetoacetate in the presence of sodium ethoxide to give 2-amino-3-pyridinecarbonitriles (II-VII) and N-(substituted)amino-3-pyridinecarboxylic acids (XIV and XV), respectively.Further, I reacted with ethyl cyanoacetate, dialkyl malonate, or ethyl benzoylacetate to give pyridine derivatives (VIII-XIII) bearing various functional groups at the C-3 position.The reaction of 1-substituted 2(1H)-pyrimidinethiones and 4,6-dimethyl-1-phenyl-2-phenylimino-1,2-dihydropyrimidine with active methylene compounds is also discussed.Keywords - ring transformation; 1-substituted 2(1H)-pyrimidinone; 1-substituted 2(1H)-pyrimidinethione; active methylene compound; sodium alkoxide; pyridine derivative.