Abstract
We have discovered a 3-bromo-7-phenoxypyrazolo[1,5-a]pyrimidine intermediate that allows for the direct sequential funtionalization of the 3-position and 7-position of a pyrazolo[1,5-a]pyrimidine scaffold. The intermediate and general method described herein offer an improvement over prior methods, particularly in cases where multiple unique 3-aryl substituents are to be incorporated in conjunction with multiple unique 7-amino substituents.
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