Improved and expanded one-pot, two-component Boulton-Katritzky syntheses of N–N bond containing bicyclic heterocycles
作者:Kyle W. Knouse、Laura E. Ator、Lauren E. Beausoleil、Zachary J. Hauseman、Rebecca L. Casaubon、Gregory R. Ott
DOI:10.1016/j.tetlet.2016.11.092
日期:2017.1
two-component syntheses of bicyclic heterocycles containing a 3-N-acyl-3-amino-1,2-pyrazole motif from N′-hydroxy-carboxyamidines and acylbenzotriazoles have been developed. Importantly, this sequence obviates the need for hydrazine or N-aminating reagents to synthesize the key nitrogen–nitrogen (N–N) bond of these heterocycles, which is formed via Boulton-Katritzky rearrangement. A diverse array of pharmaceutically
已经开发了改进的和扩展的由N'-羟基-羧am和酰基苯并三唑组成的包含3- N-酰基-3-氨基-1,2-吡唑基序的双环杂环的一锅两组分合成。重要的是,该序列无需使用肼或N-胺化试剂来合成这些杂环的关键氮-氮(N-N)键,该键是通过Boulton-Katritzky重排形成的。利用这种方法,无需任何特殊设备或条件,即可使用现成的试剂制备各种与药物相关的含N–N杂环。