Palladium-catalyzed regioselective direct C H arylation of pyrazolo[3,4- d ]pyrimidines
作者:Mohamed El Hafi、Mohammed Naas、Mohammed Loubidi、Jabrane Jouha、Youssef Ramli、Joel T. Mague、El Mokhtar Essassi、Gérald Guillaumet
DOI:10.1016/j.crci.2017.06.004
日期:2017.9
synthesis of the pyrazolo[3,4- d ]pyrimidine scaffold in three steps from allopurinol. This key intermediate was engaged in the first example of regioselective C H arylation catalyzed by palladium to access a library of 3-substituted-1-methyl-4-phenyl-1 H -pyrazolo[3,4- d ]pyrimidines.
摘要 含氮自行车显然是一个有机和生物研究领域。在这项研究中,我们公开了一种从别嘌呤醇三步合成吡唑并[3,4-d]嘧啶支架的有效途径。该关键中间体参与了钯催化的区域选择性 CH 芳基化的第一个例子,以访问 3-取代-1-甲基-4-苯基-1 H-吡唑并[3,4-d]嘧啶库。