Palladium-Catalyzed meta-C–H Olefination of Arene-Tethered Diols Directed by Well-Designed Pyrimidine-Based Group
摘要:
The palladium-catalyzed meta-olefination of arene-tethered diols attached to a well-designed pyrimidine moiety is presented. Applications of the protocol are illustrated by the synthesis of various diol-based natural products, such as coumarins, phenylpropanoids, stilbenes, and chalcones. Advantages of this method are demonstrated through the easy removal of the template and a gram-scale olefination reaction. Finally, experimental verification, including H-1 NMR, ESI-MS and IR, and DFT studies are undertaken to elucidate the mechanistic complexity.
Palladium-Catalyzed meta-C–H Olefination of Arene-Tethered Diols Directed by Well-Designed Pyrimidine-Based Group
摘要:
The palladium-catalyzed meta-olefination of arene-tethered diols attached to a well-designed pyrimidine moiety is presented. Applications of the protocol are illustrated by the synthesis of various diol-based natural products, such as coumarins, phenylpropanoids, stilbenes, and chalcones. Advantages of this method are demonstrated through the easy removal of the template and a gram-scale olefination reaction. Finally, experimental verification, including H-1 NMR, ESI-MS and IR, and DFT studies are undertaken to elucidate the mechanistic complexity.
DEPSIPEPTIDE DERIVATIVE, PRODUCTION THEREOF AND USE THEREOF
申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0634408A1
公开(公告)日:1995-01-18
A compound represented by general formula (I) or a salt thereof, excellent in parasiticidal activity as an enthelmintic for animal and man, wherein A represents benzyl which is appropriately substituted or phenyl which may be appropriately substituted; Aa represents benzyl or phenyl each of which may be appropriately substituted; B and D represent each lower alkyl; and C represents hydrogen or lower alkyl.
通式(I)所代表的化合物或其盐,作为动物和人的驱虫药,具有优异的杀寄生虫活性,其中 A 代表被适当取代的苄基或可被适当取代的苯基;Aa 代表苄基或苯基,其中每个都可被适当取代;B 和 D 分别代表低级烷基;C 代表氢或低级烷基。
Chemocontrolled reduction of aromatic α-ketoesters by NaBH4: Selective synthesis of α-hydroxy esters or 1,2-diols
作者:Vincent Dalla、Philippe Cotelle、Jean Pierre Catteau
DOI:10.1016/s0040-4039(97)00154-8
日期:1997.3
alpha-hydroxyesters 5a-g or diols 6a-g have been obtained in high yields by reduction of aromatic alpha-ketoesters 4 once or twice respectively by using NaBH4 as the reducer under suitable conditions. The use of a solvent that does not interact with the reagent allowed the double reduction to occur with only a slight excess of borohydride in very mild conditions. (C) 1997 Elsevier Science Ltd.
Beasley et al., Journal of Pharmacy and Pharmacology, 1959, vol. 11, p. 36,41
作者:Beasley et al.
DOI:——
日期:——
Sulfamate Derivative Compounds for Use in Treating or Alleviating Pain
申请人:BIO-PHARM SOLUTIONS CO., LTD.
公开号:US20160311792A1
公开(公告)日:2016-10-27
The present invention relates to sulfamate derivative compounds and a composition for treating and/or alleviating pain containing the sulfamate derivative compounds or a pharmaceutically acceptable salt thereof as an active ingredient. More specifically the present invention relates to a pharmaceutical composition for treating or alleviating pain containing a sulfamate derivative compound and/or a pharmaceutically acceptable salt thereof as an active ingredient. Furthermore, the present invention relates to a method for treatment or alleviation of pain comprising administering a sulfamate derivative compound in a pharmaceutically effective amount to a subject in need of treatment or alleviation of pain.