作者:Zhiguo Zhang、Songnan Wang、Chunfang Hu、Nana Ma、Guisheng Zhang、Qingfeng Liu
DOI:10.1016/j.tet.2018.11.023
日期:2018.12
A selective copper(I)-catalyzed benzylic C(sp3)–H geminal difunctionalization reaction of a benzylic-type sp3 carbon was developed. This novel strategy allowed simultaneous introduction of amide and hydroxyl group in a highly selective and efficient way via successive oxidative intramolecular amidation and hydroxylation. This method was also applied to the synthesis of 3-hydroxy-2,3-dihydro-1H-pyrrolo[3
开发了选择性铜(I)催化的苄型sp 3碳的苄基C(sp 3)–H双子双官能化反应。这种新颖的策略允许通过连续的氧化性分子内酰胺化和羟基化以高度选择性和有效的方式同时引入酰胺和羟基。该方法还适用于从容易获得的3-甲基-N-取代的喹喔啉-2-羧酰胺以中度到良好的程度合成3-羟基-2,3-二氢-1 H-吡咯并[3,4- b ]喹喔啉酮。产量。吡咯并[5,4- b]的五元环状半胱氨酸部分]喹喔啉酮可以用作随后转化为其他有用的官能团的中间体。
Pyrid-2-one derivatives and methods of use
申请人:——
公开号:US20040147561A1
公开(公告)日:2004-07-29
Selected compounds are effective for treatment of diseases, such as cell proliferation or apoptosis mediated diseases. The invention encompasses novel compounds, analogs, prodrugs and pharmaceutically acceptable derivatives thereof, pharmaceutical compositions and methods for prophylaxis and treatment of diseases and other maladies or conditions involving stroke, cancer and the like. The subject invention also relates to processes for making such compounds as well as to intermediates useful in such processes.
Under mild conditions, a series of α,α-difluoro-β-ketoamides were synthesized with Selectfluor® as the F+ source in the presence of K2CO3 in the mixed-solvent of water and PEG-400 (VH2O:VPEG-400=3:1), without additional phase-transfer catalyst. By using this approach, most cases examined in this study proceeded in nearly quantitative conversions regardless of the electronic nature of the substituent
在温和条件下,一系列的α,α二氟β酮酰胺用的Selectfluor合成®的F +的K的存在源2 CO 3在水和PEG-400混合溶剂(伏特H2个Ø:伏特聚乙二醇400=3:1个),无需额外的相转移催化剂。通过使用这种方法,大多数情况下,在这项研究中取代形式的电子性质的几乎定量进行转换,无论检查。
Preparation and antiinflammatory activity of 2- and 4-pyridones
作者:James Benjamin Pierce、Zaven S. Ariyan、Gaye Stuart Ovenden
DOI:10.1021/jm00344a008
日期:1982.2
been self-condensed to form pyridones. N-Alkylacetoacetamides give 2-pyridones, while N-arylacetoacetamides give 4-pyridones. In an attempt to develop nonacidic, nonsteroidal antiinflammatory agents, the pyridones were tested in a carrageenan-induced pedal edema assay in rats. While the 2-pyridones were not active, 9 of 17 4-pyridones tested were active, and one compound (4g) had antiinflammatory efficacy