Provided herein are methods for the preparation of substituted pyrazino[2,3-b]pyrazines of the formula (II):
the method comprising contacting a compound of formula (VI):
with R1—Y in a solvent, in the presence of a palladium catalyst, wherein said contacting occurs in the presence of a base, wherein R1-R3, Y, the palladium catalyst and the base are as defined herein.
本文提供了制备式 (II) 的取代
吡嗪并[2,3-b]
吡嗪的方法:
该方法包括与式 (VI) 的化合物接触:
在
钯催化剂存在下,在溶剂中与 R1-Y 接触,其中所述接触是在碱存在下进行的,其中 R1-R3、Y、
钯催化剂和碱如本文所定义。