Synthesis and stereochemistry of JBIR-81, a peptide enamide derived from aspergilli
作者:Ryo Katsuta、Mami Toyoda、Arata Yajima、Ken Ishigami、Tomoo Nukada
DOI:10.1016/j.tetlet.2018.01.080
日期:2018.3
The absolute stereochemistry of an aspergilli-derived peptide enamide, JBIR-81, was determined to be 12S, 15S by the first synthesis of (12S,15S)-JBIR-81 and its epimer. The overall yield was 56% over six steps from N-methyl-l-leucine. The (Z)-enamide structure was effectively constructed with use of a copper (I) catalyzed coupling reaction between a vinyl halide and a carboxamide.
的绝对立体化学的曲霉衍生肽烯酰胺,JBIR-81,被确定为12小号,15小号通过(12的第一合成小号,15小号)-JBIR-81和它的差向异构体。由N-甲基-1-亮氨酸经六个步骤的总产率为56%。通过使用铜(I)催化的乙烯基卤化物和羧酰胺之间的偶联反应,可以有效地构建(Z)-酰胺结构。