[EN] COMPLEMENT MODULATORS AND RELATED METHODS<br/>[FR] MODULATEURS DU COMPLÉMENT ET PROCÉDÉS ASSOCIÉS
申请人:RA PHARMACEUTICALS INC
公开号:WO2020205501A1
公开(公告)日:2020-10-08
The present disclosure presents compounds and compositions that interact with complement components. Some compounds inhibit complement activity. Included are small molecule compounds and compositions that function as C5 inhibitor compounds. Methods for inhibiting complement activity and methods of treating complement-related indications with the C5 inhibitor compounds and compositions are provided.
Sulfated polyborate-catalyzed efficient and expeditious synthesis of (un)symmetrical ureas and benzimidazolones
作者:Deelip S. Rekunge、Chetan K. Khatri、Ganesh U. Chaturbhuj
DOI:10.1016/j.tetlet.2017.10.001
日期:2017.11
The excellent catalytic potential of sulfated polyborate is utilized in the synthesis of (un)symmetrical ureas and benzimidazolones by heating amines or substituted OPDA and urea or N-phenylureas under a solvent-free condition at 120 °C is described. The key advantages of the present protocol are phosgene-free, and other hazardous reagents or organic solvent free, high reaction rates and yields, simple
A fast and efficient protocol for the synthesis of N,N'-disubstituted urea derivatives from alkyl halides and primary or secondary amines has been developed. The synthetic pathway combines nucleophilic substitutions and a Staudinger-aza-Wittig reaction in the presence of polymer-bound diphenylphosphine under 14 bar of CO2 pressure and has been performed in a one-pot two-step process. The protocol has
已开发出一种快速有效的方案,用于从烷基卤化物和伯胺或仲胺合成 N,N'-二取代脲衍生物。合成途径结合了亲核取代和 Staudinger-aza-Wittig 反应,在聚合物结合的二苯基膦存在下,在 14 bar 的 CO2 压力下,并在一个一锅两步法中进行。该协议在微波辐射下进行了优化,放大实验是在帕尔反应器的常规条件下进行的。最终化合物在简单过滤后以几乎定量的总产率分离,这使得该过程容易且快速执行。