A-ring modifications on the triazafluorenone core structure and their mGluR1 antagonist properties
作者:T.K. Sasikumar、Li Qiang、Duane A. Burnett、William J. Greenlee、Cheng Li、Mariagrazia Grilli、Rosalia Bertorelli、Gianluca Lozza、Angelo Reggiani
DOI:10.1016/j.bmcl.2010.03.004
日期:2010.4
A-ring modifications on the triazafluorenone corestructure were investigated. Five membered heterocycles such as pyrazoles and isothiazoles are not tolerated. It has been found that the pyrimidine nucleus was very well tolerated on the left hand side. Amino pyrimidine compounds 24 and 27 showed acceptable PK profile with significant brain penetration. Compound 9 served as a versatile intermediate