[EN] DERIVATIVES OF UREA AND RELATED DIAMINES, METHODS FOR THEIR MANUFACTURE, AND USES THEREFOR [FR] DÉRIVÉS DE L'URÉE ET DE DIAMINES ASSOCIÉES, LEURS PROCÉDÉS DE FABRICATION, ET LEURS UTILISATIONS
Scope and Applicability of an Expedient Synthesis Leading to Polysubstituted 3‐(Carboxyphenyl)pyrroles
作者:Thomas Ullrich、Michael Ghobrial、Klaus Weigand、Andreas L. Marzinzik
DOI:10.1080/00397910701198898
日期:2007.4.1
Abstract A convenient three‐step route toward a functionalized pyrrole building block for novel anti‐inflammatory agents is reported. In contrast to previous strategies, the present approach focuses on inexpensive starting materials and application on a multigram scale. A high degree of functional diversity is demonstrated in various derivatives, and the scope and limitations of this route are discussed
Derivatives of urea and related diamines, methods for their manufacture, and uses therefor
申请人:Deprez Pierre
公开号:US20090054463A1
公开(公告)日:2009-02-26
The present invention relates generally to compounds represented in Formula I, pharmaceutical compositions comprising them and methods of treating of diseases or disorders related to the function of the calcium sensing receptor. The invention also relates to processes for making such compounds and to intermediates useful in these processes.
Scandium Triflate as an Efficient and Recyclable Catalyst for the Deprotection of Tert‐Butyl Aryl Sulfonamides
作者:A. K. Mahalingam、Xiongyu Wu、Yiqian Wan、Mathias Alterman
DOI:10.1081/scc-200048949
日期:2005.1.1
A mild and efficient method for deprotection of tert-butyl sulfonamide groups utilizing Sc(OTf)(3) as deprotecting reagent has been developed. A variety of tert-butyl aryl sulfonamides used under these conditions gave the corresponding primary sulfonamides in high yields. The Lewis acid catalyst could be fully recovered and reused with maintained activity after the reactions.
DERIVATIVES OF UREA AND RELATED DIAMINES, METHODS FOR THEIR MANUFACTURE, AND USES THEREFOR