[EN] 2 -AMINOPYRIMIDINE DERIVATIVES AS HISTAMINE H4 ANTAGONISTS<br/>[FR] DÉRIVÉS DE 2-AMINOPYRIMIDINE COMME ANTAGONISTES DES RÉCEPTEURS H4 DE L'HISTAMINE
申请人:PALAU PHARMA SA
公开号:WO2009077608A1
公开(公告)日:2009-06-25
2-Amino-pyrimidine derivatives of formula I, wherein the meaning of the different substituents are those indicated in the description. These compounds are useful as histamine receptor H4 antagonists.
Rh-catalyzed intramolecular aromatic C–H insertion of α-diazo β-ketoesters: synthesis of 4-carbonyl chroman derivatives
作者:Xiaolin Zhang、Mei Lei、Yi-Nan Zhang、Li-Hong Hu
DOI:10.1016/j.tet.2014.03.093
日期:2014.5
A Rh-catalyzed intramoleculararomatic C–H insertion of α-diazo β-ketoesters was developed. This protocol offers a practical strategy for the synthesis of 4-carbonyl chroman derivatives with high yield and is compatible with a wide variety of substituents. Synthetic applications of the 4-carbonyl chroman were also demonstrated.