The present invention relates to novel butyne diol derivatives of the general formula I and their use as active ingredients in the preparation of pharmaceutical compositions. The invention also concerns related aspects including processes for the preparation of the compounds, pharmaceutical compositions containing one or more compounds of the general formula I and especially their use as endothelin receptor antagonists.
[EN] BUTYNE DIOL DERIVATIVES<br/>[FR] DERIVES DE BUTYNEDIOL
申请人:ACTELION PHARMACEUTICALS LTD
公开号:WO2001046156A1
公开(公告)日:2001-06-28
The present invention relates to novel butyne diol derivatives ofgeneral formula (I) and their use as active ingredients in the preparation of pharmaceutical compositions. The invention also concerns related aspects including processes for the preparation of the compounds, pharmaceutical compositions containing one or more compounds of the general formula (I) and especially their use as endothelin receptor antagonists.
Copper-catalysed synthesis of α-alkylidene cyclic carbonates from propargylic alcohols and CO<sub>2</sub>
作者:Alejandro Cervantes-Reyes、Kaveh Farshadfar、Matthias Rudolph、Frank Rominger、Thomas Schaub、Alireza Ariafard、A. Stephen K. Hashmi
DOI:10.1039/d0gc03990j
日期:——
propargylic alcohols and carbondioxide at room temperature. By using the combination of a sterically demanding BPDPrCuCl complex (BPDPr = 1,3-bis(2,6-diisopropylphenyl)-1,3-diazonine-2-ylidene) and CsF, as catalytic system, primary propargylic alcohols are efficiently converted to the corresponding α-alkylidenecycliccarbonates. Gram scale (up to 89% yield) and reusability experiments (74% global