Unprecedented CuI/CuII‐assisted tandem catalysis allowing an Ullmann/Chan–Evans–Lam sequence was achieved. This three‐component, one‐pot reaction triggered by a change in the oxidation state of the metal leads to the selective N1,N3‐diarylation of 3‐aminopyrazole. This new method should be a valuable tool for small‐molecule drug discovery that requires suitable regio‐ and/or chemoselective strategies
前所未有的Cu I / Cu II辅助串联催化,实现了Ullmann / Chan–Evans–Lam序列。这种由金属的氧化态变化引发的三组分一锅法反应导致3-氨基吡唑的选择性N 1,N 3-二芳基化。这种新方法应该是发现小分子药物的有价值的工具,它需要适当的区域和/或化学选择策略来使含氮杂环的N-芳基化。
DORIA G.; PASSAROTTI C.; SALA R.; MAGRINI R.; SBERZE P.; TIBOLLA M.; CESE+, FARMACO. ED. SCI., 41,(1986) N 6, 417-429
The present invention discloses compounds of formula I, II or, or pharmaceutically acceptable salts, esters, or prodrugs thereof:
which exhibit antibacterial properties. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject in need of antibiotic treatment. The invention also relates to methods of treating a bacterial infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. The invention further includes process by which to make the compounds of the present invention.