Inhibitors of Acyl-CoA:Cholesterol O-Acyl Transferase (ACAT) as Hypocholesterolemic Agents. 8. Incorporation of Amide or Amine Functionalities into a Series of Disubstituted Ureas and Carbamates. Effects on ACAT Inhibition in vitro and Efficacy in vivo
作者:Patrick M. O'Brien、Drago R. Sliskovic、C. John Blankley、Bruce. D Roth、Michael W. Wilson、Katherine L. Hamelehle、Brian R. Krause、Richard L. Stanfield
DOI:10.1021/jm00038a010
日期:1994.6
A series of disubstituted ureas containing amide or amine groups was prepared and evaluated for their ability to inhibitacyl-CoA:cholesterolO-acyltransferase in vitro and to lower plasma total cholesterol in a variety of cholesterol-fed rat models in vivo. The presence of polar or ionizable functionalities within this class of compounds may impart greater aqueous solubility to those compounds and
The Synthesis of Ketone-Derived Enamides by Elimination of HCN from Cyanoamides
作者:Guilhem Coussanes、Katharina Gaus、Anthony C. O'Sullivan
DOI:10.1002/ejoc.201600638
日期:2016.8
available ketone-derived cyanoamides with NaOtBu leads to enamides in a simple, scalable, and inexpensive one-step operation in good yield. Enamides not stabilized by conjugation or by inclusion in a ring can also be prepared. An E1cB mechanism consistent with all results and observations, is proposed. The Z geometry of the product enamide is highly favoured, and the regioselectivity can be directed
用 NaOtBu 处理容易获得的酮衍生的氰胺,可以通过简单、可扩展且廉价的一步操作以良好的收率获得烯酰胺。也可以制备未通过共轭或包含在环中而稳定的烯酰胺。提出了与所有结果和观察结果一致的 E1cB 机制。产物烯酰胺的 Z 几何结构受到高度青睐,区域选择性可以通过保护基团的选择来指导。