Compounds of formula (I):
are modulators of chemokine (for example CCR3) activity (for use in, for example, treating asthma).
公式(I)的化合物是趋化因子(例如CCR3)活性的调节剂(例如用于治疗哮喘)。
One-Pot, Three-Component Reaction Using Modified Julia Reagents: A Facile Synthesis of 4,5-Disubstituted 1,2,3-(<i>NH</i>)-Triazoles in a Wet Organic Solvent
A new one-pot, three component reaction involving the use of Julia reagent, aldehyde, and sodium azide was developed for the efficient synthesis of N-unsubstituted 1,2,3-triazoles. This reaction could be carried out under mild reaction conditions without any precaution, and broad scope of substrates, both respect to Julia reagents and aldehydes, could be applied in this reaction system in generation of a small library of title compounds.
US7956070B2
申请人:——
公开号:US7956070B2
公开(公告)日:2011-06-07
Metal-Free Multicomponent Reaction for Synthesis of 4,5-Disubstituted 1,2,3-(<i>NH</i>
)-Triazoles
作者:Guang-Long Wu、Qin-Pei Wu
DOI:10.1002/adsc.201701587
日期:2018.5.16
A metal‐free domino reaction was developed for efficient synthesis of 4,5‐disubstituted 1,2,3‐(NH)‐triazoles by sequentially coupling sulfur salts with aldehydes and sodium azide. In the presence of L‐proline, olefinic sulfur salt intermediates rather than epoxides are formed in situ via the coupling of sulfur salts with aldehydes and cyclize with azide ion. This process features mild conditions, high