由(Z)-2-苄氧基羰基氨基-3-(二甲基氨基)丙-2-烯酸酯四步合成了一系列烷基1-杂芳基-1 H -1,2,3-三唑-4-羧酸酯6a-u。(1)和杂环胺2a-s。测试了三唑6a-o的抗分枝杆菌活性。对于最具活性的化合物,正戊基1-(6-苯基哒嗪-3-基)-1 H -1,2,3-三唑-4-羧酸酯(6n)测定的最小抑菌浓度为3.13μg/ ml。
A novel entry to the imidoylketene–oxoketenimine energy surface
作者:David Clarke、Richard W. Mares、Hamish McNab
DOI:10.1039/c39930001026
日期:——
Gas-phase pyrolysis of the 1,2,3-triazoles 3â6 gives the pyrazolopyrimidinones 11â13 and the quinolinone 14 respectively: the mechanism involves an oxoketenimineâimidoylketene rearrangement.
Abstract A synthesis route to access triazole–pyrazole hybrids via triazenylpyrazoles was developed. Contrary to existing methods, this route allows the facile N-functionalization of the pyrazole before the attachment of the triazole unit via a copper-catalyzed azide–alkyne cycloaddition. The developed methodology was used to synthesize a library of over fifty new multi-substituted pyrazole–triazole