通过由吡唑啉酮衍生的递归阴离子介导的碱介导的,一锅,无金属,正交捆扎(束缚),由多种邻卤代芳基炔酮和β-溴烯基炔酮组装而成了一类新型的螺旋形吡唑啉酮支架。这些方便,可用于制备的转化过程可通过串联的迈克尔加成-分子内S N Ar反应或串联的迈克尔加成-分子内Ad N E过程进行,以从易于获得的前体中提供多种药效学,多样的,螺旋形的吡唑啉酮。
(β-<scp>D</scp>-Ribofuranosyl)formamidine in the Design and Synthesis of 2-(β-<scp>D</scp>-Ribofuranosyl)pyrimidines, Including R<sup>F</sup>-Containing Derivatives
作者:Viktor O. Iaroshenko、Sergii Dudkin、Vyacheslav Ya. Sosnovskikh、Alexander Villinger、Peter Langer
DOI:10.1002/ejoc.201300107
日期:2013.5
A wide range of novel 2-(β-D-ribofuranosyl)pyrimidines, including RF-containing derivatives, have been synthesized by the reaction of (β-D-ribofuranosyl)formamidine with various dielectrophilic substrates such as 3-alkoxy- and 3-chloro-1-(polyfluoroalkyl)propen-1-ones, 3-nitro- and 3-(phenylethynyl)chromones and heteroaryl acetylenic ketones.
Efficient [5 + 1]-strategy for the assembly of 1,8-naphthyridin-4(1H)-ones by domino amination/conjugate addition reactions of 1-(2-chloropyridin-3-yl)prop-2-yn-1-ones with amines
作者:Viktor O. Iaroshenko、Ingo Knepper、Muhammad Zahid、Rene Kuzora、Sergii Dudkin、Alexander Villinger、Peter Langer
DOI:10.1039/c2ob07030h
日期:——
A facile synthetic approach for the synthesis of 1,8-naphthyridine-4(1H)-one derivatives via a catalyst free and Pd-supported tandem amination sequence is developed and described. In a case of aliphatic amines reaction proceeds in a catalyst free mode, however anilines demand Pd-supported reaction conditions.